Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
DSCOP2B SuperfamilyHRDC-like 8101241 3000132 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyRBP11-like subunits of RNA polymerase 8080728 3001655 SCOP2B (2022-06-29)
W [auth Z]SCOP2B SuperfamilyTranslation proteins SH3-like KOW motif containing domain 8039849 3000334 SCOP2B (2022-06-29)
LSCOP2 FamilyRBP12 subunit of RNA polymerase II 8080898 4003797 SCOP2 (2022-06-29)
LSCOP2 SuperfamilyRNA polymerase subunits 8080899 3001823 SCOP2 (2022-06-29)
LSCOP2B SuperfamilyRNA polymerase subunits 8103068 3001823 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyRPB6/omega subunit-like 8106082 3000189 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BRNA_pol_Rpb2_6_3rd_2e6gmhB5 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb2_6_3rd_2ECOD (1.6)
BRNA_pol_Rpb2_6_2nd_1e6gmhB2 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RNA_pol_Rpb2_6_2nd_1ECOD (1.6)
BRNA_pol_Rpb2_3e6gmhB4 A: a+b complex topologyX: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)H: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)T: N-terminal domain in beta subunit of DNA dependent RNA-polymeraseF: RNA_pol_Rpb2_3ECOD (1.6)
BRNA_pol_Rpb2_1e6gmhB3 A: a+b complex topologyX: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)H: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)T: insertion domain in beta subunit of DNA dependent RNA-polymeraseF: RNA_pol_Rpb2_1ECOD (1.6)
BRNA_pol_Rpb2_45_1e6gmhB7 A: a+b complex topologyX: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)H: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)T: barrel domain in beta subunit of DNA dependent RNA-polymeraseF: RNA_pol_Rpb2_45_1ECOD (1.6)
BRNA_pol_Rpb2_7e6gmhB6 A: a+b complex topologyX: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)H: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)T: C-terminal domain in beta subunit of DNA dependent RNA-polymeraseF: RNA_pol_Rpb2_7ECOD (1.6)
BRNA_pol_Rpb2_4e6gmhB1 A: a+b complex topologyX: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)H: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)T: inserted a+b domain in yeast RNA polymerase beta subunitF: RNA_pol_Rpb2_4ECOD (1.6)
CRNA_pol_L_1e6gmhC1 A: a+b two layersX: DCoH-likeH: RBP11-like subunits of RNA polymerase (From Topology)T: RBP11-like subunits of RNA polymeraseF: RNA_pol_L_1ECOD (1.6)
CRNA_pol_A_bac_1e6gmhC2 A: a+b complex topologyX: Ribosomal protein TL5/L25 C-terminal domain-likeH: Insert subdomain of RNA polymerase alpha subunit (From Topology)T: Insert subdomain of RNA polymerase alpha subunitF: RNA_pol_A_bac_1ECOD (1.6)
DRNA_pol_Rpb4e6gmhD1 A: alpha arraysX: HhH/H2THH: SAM/DNA-glycosylaseT: SAM domain-likeF: RNA_pol_Rpb4ECOD (1.6)
ERNA_pol_Rpb5_Ce6gmhE2 A: a+b two layersX: RPB5-like RNA polymerase subunit (From Topology)H: RPB5-like RNA polymerase subunit (From Topology)T: RPB5-like RNA polymerase subunitF: RNA_pol_Rpb5_CECOD (1.6)
ERNA_pol_Rpb5_Ne6gmhE1 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Eukaryotic RPB5 N-terminal domain (From Topology)T: Eukaryotic RPB5 N-terminal domainF: RNA_pol_Rpb5_NECOD (1.6)
GS1_1e6gmhG2 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: S1_1ECOD (1.6)
GSHS2_Rpb7-Ne6gmhG1 A: a+b two layersX: Dodecin subunit-likeH: Flavin-binding protein dodecin-like (From Topology)T: Flavin-binding protein dodecin-likeF: SHS2_Rpb7-NECOD (1.6)
HRNA_pol_Rpb8e6gmhH1 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: RNA_pol_Rpb8ECOD (1.6)
KRNA_pol_L_2e6gmhK1 A: a+b two layersX: DCoH-likeH: RBP11-like subunits of RNA polymerase (From Topology)T: RBP11-like subunits of RNA polymeraseF: RNA_pol_L_2ECOD (1.6)
V [auth Y]Spt4e6gmhY1 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: Spt4ECOD (1.6)
W [auth Z]F_UNCLASSIFIEDe6gmhZ7 A: beta barrelsX: SH3H: SH3T: SH3F: F_UNCLASSIFIEDECOD (1.6)
W [auth Z]Ribosomal_L26_1e6gmhZ1 A: beta barrelsX: SH3H: SH3T: SH3F: Ribosomal_L26_1ECOD (1.6)
W [auth Z]KOWe6gmhZ4 A: beta barrelsX: SH3H: SH3T: SH3F: KOWECOD (1.6)
W [auth Z]Spt5-NGNe6gmhZ2 A: a+b two layersX: Alpha-beta plaitsH: N-utilization substance G protein NusG, N-terminal domain (From Topology)T: N-utilization substance G protein NusG, N-terminal domainF: Spt5-NGNECOD (1.6)
ARNA_pol_Rpb1_2e6gmhA3 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb1_2ECOD (1.6)
ARNA_pol_Rpb1_2_1e6gmhA6 A: a+b two layersX: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymeraseF: RNA_pol_Rpb1_2_1ECOD (1.6)
ARNA_pol_Rpb1_7e6gmhA7 A: a+b two layersX: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)H: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)T: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunitF: RNA_pol_Rpb1_7ECOD (1.6)
ARNAP_II_Rpb1_Ce6gmhA8 A: a+b two layersX: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)H: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)T: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunitF: RNAP_II_Rpb1_CECOD (1.6)
ARNA_pol_Rpb1_1e6gmhA1 A: a+b complex topologyX: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)H: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)T: N-terminal domain in RNA-polymerase beta-prime subunitF: RNA_pol_Rpb1_1ECOD (1.6)
ARNA_pol_Rpb1_5_3rde6gmhA9 A: a+b complex topologyX: central helical domain in RNA-polymerase beta-prime subunit (From Topology)H: central helical domain in RNA-polymerase beta-prime subunit (From Topology)T: central helical domain in RNA-polymerase beta-prime subunitF: RNA_pol_Rpb1_5_3rdECOD (1.6)
ARNA_pol_Rpb1_6e6gmhA5 A: a+b complex topologyX: helical domain in yeast RNA-polymerasesH: third helical domain in yeast RNA-polymerase II beta-prime subunit (From Topology)T: third helical domain in yeast RNA-polymerase II beta-prime subunitF: RNA_pol_Rpb1_6ECOD (1.6)
ARNA_pol_Rpb1_4e6gmhA2 A: a+b complex topologyX: second helical domain in RNA-polymerase beta-prime subunit (From Topology)H: second helical domain in RNA-polymerase beta-prime subunit (From Topology)T: second helical domain in RNA-polymerase beta-prime subunitF: RNA_pol_Rpb1_4ECOD (1.6)
ARNA_pol_Rpb1_3e6gmhA4 A: a+b complex topologyX: first helical domain in RNA-polymerase beta-prime subunit (From Topology)H: first helical domain in RNA-polymerase beta-prime subunit (From Topology)T: first helical domain in RNA-polymerase beta-prime subunitF: RNA_pol_Rpb1_3ECOD (1.6)
JRNA_pol_Ne6gmhJ1 A: alpha arraysX: HTHH: RPB10 (From Topology)T: RPB10F: RNA_pol_NECOD (1.6)
LDNA_RNApol_7kDe6gmhL1 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: DNA_RNApol_7kDECOD (1.6)
MS1_1e6gmhM6 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: S1_1ECOD (1.6)
MHTH_44e6gmhM5 A: alpha arraysX: HTHH: Tex N-terminal domain (From Topology)T: Tex N-terminal domainF: HTH_44ECOD (1.6)
MDLDe6gmhM3 A: alpha arraysX: HhH/H2THH: SAM/DNA-glycosylaseT: SAM domain-likeF: DLDECOD (1.6)
MHHH_7e6gmhM4 A: alpha arraysX: HhH/H2THH: SAM/DNA-glycosylaseT: SAM domain-likeF: HHH_7ECOD (1.6)
MUNK_F_TYPEe6gmhM7 A: alpha bundlesX: immunoglobulin/albumin-binding domain-likeH: Tex bundle domain-like (From Topology)T: Tex bundle domain-likeF: UNK_F_TYPEECOD (1.6)
MTex_N_3rde6gmhM1 A: alpha complex topologyX: Tex N-terminal region-like (From Topology)H: Tex N-terminal region-like (From Topology)T: Tex N-terminal region-likeF: Tex_N_3rdECOD (1.6)
MSH2_2_Ce6gmhM8 A: a+b two layersX: SH2 (From Topology)H: SH2 (From Topology)T: SH2F: SH2_2_CECOD (1.6)
MSH2_2_Ne6gmhM9 A: a+b two layersX: SH2 (From Topology)H: SH2 (From Topology)T: SH2F: SH2_2_NECOD (1.6)
MTex_YqgFe6gmhM2 A: mixed a+b and a/bX: Ribonuclease H-likeH: Ribonuclease H-like (From Topology)T: Ribonuclease H-likeF: Tex_YqgFECOD (1.6)
T [auth W]ANAPC4_WD40_7e6gmhW1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_7ECOD (1.6)
FRNA_pol_Rpb6_1e6gmhF1 A: alpha arraysX: RPB6/omega subunit-like (From Homology)H: RPB6/omega subunit-likeT: RPB6F: RNA_pol_Rpb6_1ECOD (1.6)
IRNA_POL_M_15KDe6gmhI2 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: RNA_POL_M_15KDECOD (1.6)
ITFIIS_Ce6gmhI1 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: TFIIS_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
C3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
C2.170.120.12 Mainly Beta Beta Complex RNA Polymerase Alpha Subunit Chain A, domain 2CATH (4.3.0)
D1.20.1250.40 Mainly Alpha Up-down Bundle Growth Hormone Chain: ACATH (4.3.0)
E3.40.1340.10 Alpha Beta 3-Layer(aba) Sandwich Dna-directed Rna Polymerases I, Ii, And Iii 27 Kd Polypeptide Chain: ACATH (4.3.0)
E3.90.940.20 Alpha Beta Alpha-Beta Complex Eukaryotic RPB6 RNA polymerase subunit RPB5-like RNA polymerase subunitCATH (4.3.0)
G3.30.1490.120 Alpha Beta 2-Layer Sandwich Dna Ligase domain 1CATH (4.3.0)
G2.40.50.140 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) Nucleic acid-binding proteinsCATH (4.3.0)
H2.40.50.140 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) Nucleic acid-binding proteinsCATH (4.3.0)
K3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
V [auth Y]3.30.40.210 Alpha Beta 2-Layer Sandwich Herpes Virus-1 CATH (4.3.0)
J1.10.10.60 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Homeodomain-likeCATH (4.3.0)
L2.20.28.30 Mainly Beta Single Sheet Rubrerythrin, domain 2 RNA polymerase ii, chain LCATH (4.3.0)
T [auth W]2.130.10.10 Mainly Beta 7 Propeller Methylamine Dehydrogenase Chain HCATH (4.3.0)
F3.90.940.10 Alpha Beta Alpha-Beta Complex Eukaryotic RPB6 RNA polymerase subunit RNA polymerase subunit, RPB6/omegaCATH (4.3.0)
I2.20.25.10 Mainly Beta Single Sheet N-terminal domain of TfIIb CATH (utative)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF04561RNA polymerase Rpb2, domain 2 (RNA_pol_Rpb2_2)RNA polymerase Rpb2, domain 2RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA po ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA polymerase. This domain forms one of the two distinctive lobes of the Rpb2 structure. This domain is also known as the lobe domain [1]. DNA has been demonstrated to bind to the concave surface of the lobe domain, and plays a role in maintaining the transcription bubble [1]. Many of the bacterial members contain large insertions within this domain, as region known as dispensable region 1 (DRI).
Domain
PF04560RNA polymerase Rpb2, domain 7 (RNA_pol_Rpb2_7)RNA polymerase Rpb2, domain 7RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA p ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA polymerase. This domain comprised of the structural domains anchor and clamp [1]. The clamp region (C-terminal) contains a zinc-binding motif [1]. The clamp region is named due to its interaction with the clamp domain found in Rpb1. The domain also contains a region termed "switch 4". The switches within the polymerase are thought to signal different stages of transcription [1].
Domain
PF04565RNA polymerase Rpb2, domain 3 (RNA_pol_Rpb2_3)RNA polymerase Rpb2, domain 3RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 3, s also known as the fork domain and is ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 3, s also known as the fork domain and is proximal to catalytic site [1].
Domain
PF04566RNA polymerase Rpb2, domain 4 (RNA_pol_Rpb2_4)RNA polymerase Rpb2, domain 4RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 4, is also known as the external 2 domain ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 4, is also known as the external 2 domain [1].
Domain
PF04563RNA polymerase beta subunit (RNA_pol_Rpb2_1)RNA polymerase beta subunit- Family
PF00562RNA polymerase Rpb2, domain 6 (RNA_pol_Rpb2_6)RNA polymerase Rpb2, domain 6RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain and the wall domain [1]. The hybrid binding domain binds the nascent RNA strand / template DNA strand in the Pol II transcription elongation complex. This domain contains the important structural motifs, switch 3 and the flap loop and binds an active site metal ion[1]. This domain is also involved in binding to Rpb1 and Rpb3 [1]. Many of the bacterial members contain large insertions within this domain, as region known as dispensable region 2 (DRII).
Domain
PF04567RNA polymerase Rpb2, domain 5 (RNA_pol_Rpb2_5)RNA polymerase Rpb2, domain 5RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 5, is also known as the external 2 domain ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 5, is also known as the external 2 domain [1].
Domain
PF01193RNA polymerase Rpb3/Rpb11 dimerisation domain (RNA_pol_L)RNA polymerase Rpb3/Rpb11 dimerisation domainThe two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation do ...The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation domain of the alpha subunit/Rpb3 is interrupted by an insert domain (Pfam:PF01000). Some of the alpha subunits also contain iron-sulphur binding domains (Pfam:PF00037). Rpb11 is found as a continuous domain. Members of this family include: alpha subunit from eubacteria, alpha subunits from chloroplasts, Rpb3 subunits from eukaryotes, Rpb11 subunits from eukaryotes, RpoD subunits from archaeal spp, and RpoL subunits from archaeal spp.
Domain
PF01000RNA polymerase Rpb3/RpoA insert domain (RNA_pol_A_bac)RNA polymerase Rpb3/RpoA insert domainMembers of this family include: alpha subunit from eubacteria alpha subunits from chloroplasts Rpb3 subunits from eukaryotes RpoD subunits from archaealDomain
PF03874RNA polymerase Rpb4 (RNA_pol_Rpb4)RNA polymerase Rpb4- Family
PF01191RNA polymerase Rpb5, C-terminal domain (RNA_pol_Rpb5_C)RNA polymerase Rpb5, C-terminal domainThe assembly domain of Rpb5 [1]. The archaeal equivalent to this domain is subunit H. Subunit H lacks the N-terminal domain.Domain
PF03871RNA polymerase Rpb5, N-terminal domain (RNA_pol_Rpb5_N)RNA polymerase Rpb5, N-terminal domainRpb5 has a bipartite structure which includes a eukaryote-specific N-terminal domain and a C-terminal domain resembling the archaeal RNAP subunit H [1,2]. The N-terminal domain is involved in DNA binding and is part of the jaw module in the RNA p ...Rpb5 has a bipartite structure which includes a eukaryote-specific N-terminal domain and a C-terminal domain resembling the archaeal RNAP subunit H [1,2]. The N-terminal domain is involved in DNA binding and is part of the jaw module in the RNA pol II structure [3]. This module is important for positioning the downstream DNA.
Domain
PF03870RNA polymerase Rpb8 (RNA_pol_Rpb8)RNA polymerase Rpb8- Family
PF13656RNA polymerase Rpb3/Rpb11 dimerisation domain (RNA_pol_L_2)RNA polymerase Rpb3/Rpb11 dimerisation domainThe two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation do ...The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation domain of the alpha subunit/Rpb3 is interrupted by an insert domain (Pfam:PF01000). Some of the alpha subunits also contain iron-sulphur binding domains (Pfam:PF00037). Rpb11 is found as a continuous domain. Members of this family include: alpha subunit from eubacteria, alpha subunits from chloroplasts, Rpb3 subunits from eukaryotes, Rpb11 subunits from eukaryotes, RpoD subunits from archaeal spp, and RpoL subunits from archaeal spp. Many of the members of this family carry only the N-terminal region of Rpb11.
Domain
P [auth Q]PF13181Tetratricopeptide repeat (TPR_8)Tetratricopeptide repeat- Repeat
P [auth Q]PF13374Tetratricopeptide repeat (TPR_10)Tetratricopeptide repeat- Repeat
V [auth Y]PF06093Spt4/RpoE2 zinc finger (Spt4)Spt4/RpoE2 zinc fingerThis family consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [2]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via ...This family consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [2]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via the modulation of chromatin structure. Spt4 and Spt5 are tightly associated in a complex, while the physical association of the Spt4-Spt5 complex with Spt6 is considerably weaker. It has been demonstrated that Spt4, Spt5, and Spt6 play roles in transcription elongation in both yeast and humans including a role in activation by Tat. It is known that Spt4, Spt5, and Spt6 are general transcription-elongation factors, controlling transcription both positively and negatively in important regulatory and developmental roles [1]. RpoE2 is one of 13 subunits in the archaeal RNA polymerase. These proteins contain a C4-type zinc finger, and the structure has been solved in [3]. The structure reveals that Spt4-Spt5 binding is governed by an acid-dipole interaction between Spt5 and Spt4, and the complex binds to and travels along the elongating RNA polymerase. The Spt4-Spt5 complex is likely to be an ancient, core component of the transcription elongation machinery.
Domain
W [auth Z]PF03439Early transcription elongation factor of RNA pol II, NGN section (Spt5-NGN)Early transcription elongation factor of RNA pol II, NGN section- Family
W [auth Z]PF00467KOW motif (KOW)KOW motif- Family
PF00623RNA polymerase Rpb1, domain 2 (RNA_pol_Rpb1_2)RNA polymerase Rpb1, domain 2RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 2, contains the active site ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 2, contains the active site. The invariant motif -NADFDGD- binds the active site magnesium ion [1,2].
Domain
PF04990RNA polymerase Rpb1, domain 7 (RNA_pol_Rpb1_7)RNA polymerase Rpb1, domain 7RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 7, represents a mobile modu ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 7, represents a mobile module of the RNA polymerase. Domain 7 forms a substantial interaction with the lobe domain of Rpb2 (Pfam:PF04561) [1,2].
Domain
PF05000RNA polymerase Rpb1, domain 4 (RNA_pol_Rpb1_4)RNA polymerase Rpb1, domain 4RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 4, represents the funnel do ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 4, represents the funnel domain. The funnel contain the binding site for some elongation factors [1,2].
Domain
PF04983RNA polymerase Rpb1, domain 3 (RNA_pol_Rpb1_3)RNA polymerase Rpb1, domain 3RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 3, represents the pore doma ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 3, represents the pore domain. The 3' end of RNA is positioned close to this domain. The pore delimited by this domain is thought to act as a channel through which nucleotides enter the active site and/or where the 3' end of the RNA may be extruded during back-tracking [1,2].
Domain
PF04992RNA polymerase Rpb1, domain 6 (RNA_pol_Rpb1_6)RNA polymerase Rpb1, domain 6RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 6, represents a mobile modu ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 6, represents a mobile module of the RNA polymerase. Domain 6 forms part of the shelf module [1,2]. This family appears to be specific to the largest subunit of RNA polymerase II.
Domain
PF04998RNA polymerase Rpb1, domain 5 (RNA_pol_Rpb1_5)RNA polymerase Rpb1, domain 5RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontin ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontinuous cleft domain that is required to from the central cleft or channel where the DNA is bound [1,2].
Domain
PF04997RNA polymerase Rpb1, domain 1 (RNA_pol_Rpb1_1)RNA polymerase Rpb1, domain 1RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 1, represents the clamp do ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 1, represents the clamp domain, which a mobile domain involved in positioning the DNA, maintenance of the transcription bubble and positioning of the nascent RNA strand [1,2].
Domain
PF03604DNA directed RNA polymerase, 7 kDa subunit (DNA_RNApol_7kD)DNA directed RNA polymerase, 7 kDa subunit- Domain
PF14639Holliday-junction resolvase-like of SPT6 (YqgF)Holliday-junction resolvase-like of SPT6The YqgF domain of SPT6 proteins is homologous to the E.coli RuvC [1] but its putative catalytic site lacks the carboxylate side chains critical for coordinating magnesium ions that mediate phosphodiester bond-cleavage [2]Domain
PF17674HHH domain (HHH_9)HHH domain- Domain
PF22706Tex central region-like (Tex_central_region)Tex central region-likeThis domain is found in Tex protein and other related proteins. Tex belongs to a family of prokaryotic transcriptional accessory factors that likely function in a variety of transcriptional processes [1-5].This domain is mainly helical, consisting of ...This domain is found in Tex protein and other related proteins. Tex belongs to a family of prokaryotic transcriptional accessory factors that likely function in a variety of transcriptional processes [1-5].This domain is mainly helical, consisting of a number of small helices that wrap around a long central helix.
Domain
PF14641Helix-turn-helix DNA-binding domain of SPT6 (HTH_44)Helix-turn-helix DNA-binding domain of SPT6This helix-turn-helix represents the first of two DNA-binding domains on the SPT6 proteins.Domain
PF14635Helix-hairpin-helix motif (HHH_7)Helix-hairpin-helix motif- Domain
T [auth W]PF00400WD domain, G-beta repeat (WD40)WD domain, G-beta repeat- Repeat
PF01192RNA polymerase Rpb6 (RNA_pol_Rpb6)RNA polymerase Rpb6- Family
PF02150RNA polymerases M/15 Kd subunit (RNA_POL_M_15KD)RNA polymerases M/15 Kd subunit- Domain
PF01096Transcription factor S-II (TFIIS) (TFIIS_C)Transcription factor S-II (TFIIS)- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
DNA-directed RNA polymerase subunit beta
RNA polymerase II subunit C
RNA polymerase II subunit D
RNA polymerase II subunit E
RNA polymerase II subunit G---
DNA-directed RNA polymerases I, II, and III subunit RPABC3
RPB11 -
Non-template DNA---
P [auth Q]CTR9,RNA polymerase-associated protein CTR9 homolog,RNA polymerase-associated protein CTR9 homolog
S [auth V]PAF1,RNA polymerase II-associated factor 1 homolog,RNA polymerase II-associated factor 1 homolog
U [auth X]CDC73---
V [auth Y]Transcription elongation factor SPT4
W [auth Z]Transcription elongation factor SPT5
RPB1
RPB10---
RPB12
Transcription elongation factor SPT6,Transcription elongation factor SPT6,Transcription elongation factor SPT6
O [auth P]RNA---
Q [auth T]Template DNA---
R [auth U]LEO1,LEO1,RNA polymerase-associated protein LEO1
T [auth W]WD repeat-containing protein 61-
RNA polymerase II subunit F
DNA-directed RNA polymerase II subunit RPB9

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR007642RNA polymerase Rpb2, domain 2Domain
IPR015712DNA-directed RNA polymerase, subunit 2Family
IPR037033DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamilyHomologous Superfamily
IPR037034RNA polymerase Rpb2, domain 2 superfamilyHomologous Superfamily
IPR007120DNA-directed RNA polymerase, subunit 2, hybrid-binding domainDomain
IPR007121RNA polymerase, beta subunit, conserved siteConserved Site
IPR007645RNA polymerase Rpb2, domain 3Domain
IPR007646RNA polymerase Rpb2, domain 4Domain
IPR007647RNA polymerase Rpb2, domain 5Domain
IPR014724RNA polymerase Rpb2, OB-foldHomologous Superfamily
IPR007644RNA polymerase, beta subunit, protrusionDomain
IPR007641RNA polymerase Rpb2, domain 7Domain
IPR011262DNA-directed RNA polymerase, insert domainDomain
IPR011263DNA-directed RNA polymerase, RpoA/D/Rpb3-typeDomain
IPR050518Archaeal Rpo3/Eukaryotic RPB3 RNA Polymerase SubunitFamily
IPR022842DNA-directed RNA polymerase subunit Rpo3/Rpb3/RPAC1Family
IPR036643DNA-directed RNA polymerase, insert domain superfamilyHomologous Superfamily
IPR001514DNA-directed RNA polymerase, 30-40kDa subunit, conserved siteConserved Site
IPR036603RNA polymerase, RBP11-like subunitHomologous Superfamily
IPR005574RNA polymerase subunit Rpb4/RPC9Family
IPR010997HRDC-like superfamilyHomologous Superfamily
IPR006590RNA polymerase Rpb4/RPC9, coreDomain
IPR038324Rpb4/RPC9 superfamilyHomologous Superfamily
IPR045222DNA-directed RNA polymerase II subunit Rpb4-likeFamily
IPR014381DNA-directed RNA polymerase subunit Rpo5/Rpb5Family
IPR036710RNA polymerase Rpb5, N-terminal domain superfamilyHomologous Superfamily
IPR035913RPB5-like RNA polymerase subunit superfamilyHomologous Superfamily
IPR000783RNA polymerase, subunit H/Rpb5 C-terminalDomain
IPR020608RNA polymerase, subunit H/Rpb5, conserved siteConserved Site
IPR005571RNA polymerase, Rpb5, N-terminalDomain
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
IPR005570DNA-directed RNA polymerases I, II, and III subunit RPABC3Family
IPR022905DNA-directed RNA polymerase subunit Rpo11-likeFamily
IPR009025DNA-directed RNA polymerase, RBP11-like dimerisation domainDomain
IPR036603RNA polymerase, RBP11-like subunitHomologous Superfamily
IPR008193DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved siteConserved Site
IPR037685RNA polymerase RBP11Family
P [auth Q]IPR011990Tetratricopeptide-like helical domain superfamilyHomologous Superfamily
P [auth Q]IPR031101RNA polymerase-associated protein Ctr9Family
P [auth Q]IPR019734Tetratricopeptide repeatRepeat
S [auth V]IPR007133RNA polymerase II associated factor Paf1Family
V [auth Y]IPR038510Spt4 superfamilyHomologous Superfamily
V [auth Y]IPR009287Transcription initiation Spt4Family
V [auth Y]IPR029040RNA polymerase subunit RPABC4/transcription elongation factor Spt4Homologous Superfamily
V [auth Y]IPR022800Spt4/RpoE2 zinc fingerDomain
W [auth Z]IPR041980Spt5, KOW domain repeat 6Domain
W [auth Z]IPR041976Spt5, KOW domain repeat 3Domain
W [auth Z]IPR039385NGN domain, eukaryoticDomain
W [auth Z]IPR014722Large ribosomal subunit protein uL2, domain 2Homologous Superfamily
W [auth Z]IPR022581Spt5 transcription elongation factor, N-terminalDomain
W [auth Z]IPR024945Spt5 C-terminal domainDomain
W [auth Z]IPR006645NusG-like, N-terminalDomain
W [auth Z]IPR041975Spt5, KOW domain repeat 2Domain
W [auth Z]IPR039659Transcription elongation factor SPT5Family
W [auth Z]IPR036735NusG, N-terminal domain superfamilyHomologous Superfamily
W [auth Z]IPR008991Translation protein SH3-like domain superfamilyHomologous Superfamily
W [auth Z]IPR041973Spt5, KOW domain repeat 1Domain
W [auth Z]IPR005100NGN domainDomain
W [auth Z]IPR041977Spt5, KOW domain repeat 4Domain
W [auth Z]IPR017071Transcription elongation factor Spt5, eukaryoteFamily
W [auth Z]IPR005824KOWDomain
W [auth Z]IPR041978Spt5, KOW domain repeat 5Domain
IPR007066RNA polymerase Rpb1, domain 3Domain
IPR007081RNA polymerase Rpb1, domain 5Domain
IPR007073RNA polymerase Rpb1, domain 7Domain
IPR045867DNA-directed RNA polymerase, subunit beta-primeFamily
IPR042102RNA polymerase Rpb1, domain 3 superfamilyHomologous Superfamily
IPR007075RNA polymerase Rpb1, domain 6Domain
IPR000684RNA polymerase II, heptapeptide repeat, eukaryoticRepeat
IPR007083RNA polymerase Rpb1, domain 4Domain
IPR038593RNA polymerase Rpb1, domain 7 superfamilyHomologous Superfamily
IPR000722RNA polymerase, alpha subunitDomain
IPR044893RNA polymerase Rpb1, clamp domain superfamilyHomologous Superfamily
IPR038120RNA polymerase Rpb1, funnel domain superfamilyHomologous Superfamily
IPR006592RNA polymerase, N-terminalDomain
IPR007080RNA polymerase Rpb1, domain 1Domain
IPR006591RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4Family
IPR029040RNA polymerase subunit RPABC4/transcription elongation factor Spt4Homologous Superfamily
IPR039747DNA-directed RNA polymerases I, II, and III subunit RPABC4Family
IPR042066Spt6, Death-like domainHomologous Superfamily
IPR028231Transcription elongation factor Spt6, YqgF domainDomain
IPR037027YqgF/RNase H-like domain superfamilyHomologous Superfamily
IPR036860SH2 domain superfamilyHomologous Superfamily
IPR000980SH2 domainDomain
IPR006641YqgF/RNase H-like domainDomain
IPR041692HHH domain 9Domain
IPR010994RuvA domain 2-likeHomologous Superfamily
IPR023319Tex-like protein, HTH domain superfamilyHomologous Superfamily
IPR012337Ribonuclease H-like superfamilyHomologous Superfamily
IPR017072Transcription elongation factor Spt6Family
IPR035420Spt6, SH2 domainDomain
IPR032706Transcription elongation factor Spt6, helix-hairpin-helix motifDomain
IPR003029S1 domainDomain
IPR023323Tex-like domain superfamilyHomologous Superfamily
IPR028088Helix-turn-helix DNA-binding domain of Spt6Domain
IPR035019Spt6, SH2 domain, N terminusDomain
IPR035018Spt6, SH2 domain, C terminusDomain
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
IPR028083Spt6 acidic, N-terminal domainDomain
R [auth U]IPR007149Leo1-like proteinFamily
T [auth W]IPR019775WD40 repeat, conserved siteConserved Site
T [auth W]IPR036322WD40-repeat-containing domain superfamilyHomologous Superfamily
T [auth W]IPR051510Superkiller complex protein 8Family
T [auth W]IPR001680WD40 repeatRepeat
T [auth W]IPR020472G-protein beta WD-40 repeatRepeat
T [auth W]IPR015943WD40/YVTN repeat-like-containing domain superfamilyHomologous Superfamily
IPR020708DNA-directed RNA polymerase, 14-18kDa subunit, conserved siteConserved Site
IPR036161RPB6/omega subunit-like superfamilyHomologous Superfamily
IPR028363DNA-directed RNA polymerase, subunit RPB6Family
IPR006110RNA polymerase, subunit omega/Rpo6/RPB6Family
IPR006111Archaeal Rpo6/eukaryotic RPB6 RNA polymerase subunitFamily
IPR012164DNA-directed RNA polymerase subunit/transcription factor SFamily
IPR001222Zinc finger, TFIIS-typeDomain
IPR034012Pol II subunit B9, C-terminal zinc ribbonDomain
IPR019761DNA-directed RNA polymerase M, 15kDa subunit, conserved siteConserved Site
IPR001529DNA-directed RNA polymerase, M/15kDa subunitDomain

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
P [auth Q]UNK
S [auth V]UNK
U [auth X]UNK
SEP Parent Component: SER

RESIDAA0037

PSI-MOD :  O-phospho-L-serine MOD:00046
TPO Parent Component: THR

RESIDAA0037 , AA0038

PSI-MOD :  O-phospho-L-serine MOD:00046 , O-phospho-L-threonine MOD:00047
UNK RESIDAA0037 , AA0038

R [auth U]UNK RESIDAA0037 , AA0038