Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth E]SCOP2B SuperfamilyJAB1/MPN domain-like8053263 3001105 SCOP2B (2022-06-29)
B [auth A]SCOP2B SuperfamilyTPR-like8057036 3001345 SCOP2B (2022-06-29)
B [auth A]SCOP2B SuperfamilyWinged helix DNA-binding domain8057039 3000034 SCOP2B (2022-06-29)
B [auth A]SCOP2B SuperfamilyTPR-like8057037 3001345 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyJAB1/MPN domain-like8053244 3001105 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyEIF3 subunit F C-terminal domain-like8053243 3002167 SCOP2B (2022-06-29)
J [auth L]SCOP2B SuperfamilyCullin repeat-like8084778 3000059 SCOP2B (2022-06-29)
L [auth R]SCOP2B SuperfamilyRING/U-box like8040866 3000160 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth E]PF01398e8h3aE2 A: a+b three layersX: Cytidine deaminase-like (From Topology)H: Cytidine deaminase-like (From Topology)T: Cytidine deaminase-likeF: PF01398ECOD (1.6)
A [auth E]PF18323e8h3aE1 A: extended segmentsX: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domain (From Topology)H: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domain (From Topology)T: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domainF: PF18323ECOD (1.6)
B [auth A]PF01399e8h3aA3 A: alpha arraysX: HTHH: HTHT: wingedF: PF01399ECOD (1.6)
B [auth A]PF10602e8h3aA1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF10602ECOD (1.6)
B [auth A]PF21151e8h3aA2 A: extended segmentsX: 26S proteasome regulatory subunits C-terminal helicesH: 26S proteasome regulatory subunit RPN7 C-terminal helix (From Topology)T: 26S proteasome regulatory subunit RPN7 C-terminal helixF: PF21151ECOD (1.6)
C [auth B]PF01399e8h3aB2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01399ECOD (1.6)
C [auth B]F_UNCLASSIFIEDe8h3aB3 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: F_UNCLASSIFIEDECOD (1.6)
C [auth B]F_UNCLASSIFIEDe8h3aB1 A: extended segmentsX: 26S proteasome regulatory subunits C-terminal helicesH: 26S proteasome regulatory subunit RPN9 C-terminal helix (From Topology)T: 26S proteasome regulatory subunit RPN9 C-terminal helixF: F_UNCLASSIFIEDECOD (1.6)
D [auth C]PF01399,PF22788e8h3aC3 A: alpha arraysX: HTHH: HTHT: wingedF: PF01399,PF22788ECOD (1.6)
D [auth C]PF22788e8h3aC2 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF22788ECOD (1.6)
D [auth C]PF21215e8h3aC1 A: extended segmentsX: 26S proteasome regulatory subunits C-terminal helicesH: 26S proteasome regulatory subunit RPN3 C-terminal helix (From Topology)T: 26S proteasome regulatory subunit RPN3 C-terminal helixF: PF21215ECOD (1.6)
FPF01398e8h3aF1 A: a+b three layersX: Cytidine deaminase-like (From Topology)H: Cytidine deaminase-like (From Topology)T: Cytidine deaminase-likeF: PF01398ECOD (1.6)
FPF13012e8h3aF2 A: extended segmentsX: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domain (From Topology)H: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domain (From Topology)T: 26S proteasome regulatory subunit RPN8/RPN11 C-terminal domainF: PF13012ECOD (1.6)
GPF01399e8h3aG2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01399ECOD (1.6)
GPF22061e8h3aG1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF22061ECOD (1.6)
GPF18392e8h3aG3 A: extended segmentsX: 26S proteasome regulatory subunits C-terminal helicesH: 26S proteasome regulatory subunit RPN9 C-terminal helix (From Topology)T: 26S proteasome regulatory subunit RPN9 C-terminal helixF: PF18392ECOD (1.6)
HPF10075e8h3aH2 A: alpha arraysX: HTHH: HTHT: wingedF: PF10075ECOD (1.6)
HPF10075e8h3aH1 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF10075ECOD (1.6)
J [auth L]PF00888e8h3aL5 A: alpha arraysX: HTHH: HTHT: wingedF: PF00888ECOD (1.6)
J [auth L]PF10557e8h3aL2 A: alpha arraysX: HTHH: HTHT: wingedF: PF10557ECOD (1.6)
J [auth L]PF00888e8h3aL4 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF00888ECOD (1.6)
J [auth L]PF00888e8h3aL1 A: a+b duplicates or obligate multimersX: a+b domain in cullin-like proteins (From Topology)H: a+b domain in cullin-like proteins (From Topology)T: a+b domain in cullin-like proteinsF: PF00888ECOD (1.6)
L [auth R]PF12678e8h3aR1 A: few secondary structure elementsX: RING/U-box-likeH: RING/U-box-likeT: RING/U-boxF: PF12678ECOD (1.6)
E [auth D]PF01399e8h3aD3 A: alpha arraysX: HTHH: HTHT: wingedF: PF01399ECOD (1.6)
E [auth D]PF22241e8h3aD2 A: alpha superhelicesX: Repetitive alpha hairpinsH: ARM repeat (From Topology)T: ARM repeatF: PF22241ECOD (1.6)
E [auth D]PF18420e8h3aD1 A: extended segmentsX: 26S proteasome regulatory subunits C-terminal helicesH: 26S proteasome regulatory subunit RPN5 C-terminal helix (From Topology)T: 26S proteasome regulatory subunit RPN5 C-terminal helixF: PF18420ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth E]PF18323Cop9 signalosome subunit 5 C-terminal domain (CSN5_C)Cop9 signalosome subunit 5 C-terminal domainThe COP9 (Constitutive photomorphogenesis 9) signalosome (CSN), a large multiprotein complex that resembles the 19S lid of the 26S proteasome, plays a central role in the regulation of the E3-cullin RING ubiquitin ligases (CRLs) [1]. The catalytic ac ...The COP9 (Constitutive photomorphogenesis 9) signalosome (CSN), a large multiprotein complex that resembles the 19S lid of the 26S proteasome, plays a central role in the regulation of the E3-cullin RING ubiquitin ligases (CRLs) [1]. The catalytic activity of the CSN complex is carried by subunit 5 (CSN5), also known as c-Jun activation domain-binding protein-1 (Jab1) [1]. This entry is the C-terminal domain found in CSN5 proteins. CSN5, whose two C-terminal helices form an antiparallel hairpin, inserts its final C-terminal helix (helix II) into the central CSN6 framework at the core of the bundle. Deletion of the C-terminal helices has a pronounced effect on CSN integrity [2].
Domain
A [auth E]PF01398JAB1/Mov34/MPN/PAD-1 ubiquitin protease (JAB)JAB1/Mov34/MPN/PAD-1 ubiquitin protease- Family
B [auth A]PF21151COP9 signalosome complex subunit 1, C-terminal helix (CSN1_C)COP9 signalosome complex subunit 1, C-terminal helixThis is the C-terminal helix from COP9 signalosome complex subunit 1, an essential component of the COP9 signalosome complex (CSN), which involved in various cellular and developmental processes [1,2].Domain
B [auth A]PF01399PCI domain (PCI)PCI domainThis domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].Domain
B [auth A]PF1060226S proteasome subunit RPN7 (RPN7)26S proteasome subunit RPN7- Repeat
C [auth B]PF01399PCI domain (PCI)PCI domainThis domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].Domain
D [auth C]PF21215COP9 signalosome complex subunit 3-like, C-terminal helix (CSN3-like_C)COP9 signalosome complex subunit 3-like, C-terminal helixThis domain is found in COP9 signalosome complex subunit 3 from humans (CSN3) and similar proteins predominantly found in vertebrates. CSN3 is a component of the eight-subunit COP9 signalosome complex (CSN), which inactivate Cullin-RING E3 ubiquitin ...This domain is found in COP9 signalosome complex subunit 3 from humans (CSN3) and similar proteins predominantly found in vertebrates. CSN3 is a component of the eight-subunit COP9 signalosome complex (CSN), which inactivate Cullin-RING E3 ubiquitin ligases (CRLs) by removing their covalently attached activator, NEDD8. This entry represents the C-terminal helical decoration of this protein [1,2].
Domain
D [auth C]PF01399PCI domain (PCI)PCI domainThis domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].Domain
PF13012Maintenance of mitochondrial structure and function (MitMem_reg)Maintenance of mitochondrial structure and function- Family
PF01398JAB1/Mov34/MPN/PAD-1 ubiquitin protease (JAB)JAB1/Mov34/MPN/PAD-1 ubiquitin protease- Family
PF18392COP9 signalosome complex subunit 7a helix I domain (CSN7a_helixI)COP9 signalosome complex subunit 7a helix I domainThis is The C-terminal helix I domain found in COP9 signalosome complex subunit 7a. The helix from CSN7 (helix I) contacts CSN6 helices I and II at the base of the bundle, nearest the PCI ring [1].Domain
PF01399PCI domain (PCI)PCI domainThis domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].Domain
PF10075CSN8/PSMD8/EIF3K family (CSN8_PSD8_EIF3K)CSN8/PSMD8/EIF3K family- Family
I,
K [auth M]
PF07707BTB And C-terminal Kelch (BACK)BTB And C-terminal KelchThis domain is found associated with Pfam:PF00651 and Pfam:PF01344 [1]. The BACK domain is found juxtaposed to the BTB domain; they are separated by as little as two residues [1]. This family appears to be closely related to the BTB domain (Finn RD ...This domain is found associated with Pfam:PF00651 and Pfam:PF01344 [1]. The BACK domain is found juxtaposed to the BTB domain; they are separated by as little as two residues [1]. This family appears to be closely related to the BTB domain (Finn RD, personal observation).
Domain
I,
K [auth M]
PF00651BTB/POZ domain (BTB)BTB/POZ domainThe BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family o ...The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family of pox virus proteins. The BTB/POZ domain mediates homomeric dimerisation and in some instances heteromeric dimerisation [2]. The structure of the dimerised PLZF BTB/POZ domain has been solved and consists of a tightly intertwined homodimer. The central scaffolding of the protein is made up of a cluster of alpha-helices flanked by short beta-sheets at both the top and bottom of the molecule [3]. POZ domains from several zinc finger proteins have been shown to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes including N-CoR and SMRT [4,5,6]. The POZ or BTB domain is also known as BR-C/Ttk or ZiN.
Domain
I,
K [auth M]
PF01344Kelch motif (Kelch_1)Kelch motif- Repeat
J [auth L]PF00888Cullin family (Cullin)Cullin family- Repeat
J [auth L]PF10557Cullin protein neddylation domain (Cullin_Nedd8)Cullin protein neddylation domainThis is the neddylation site of cullin proteins which are a family of structurally related proteins containing an evolutionarily conserved cullin domain. With the exception of APC2, each member of the cullin family is modified by Nedd8 and several cu ...This is the neddylation site of cullin proteins which are a family of structurally related proteins containing an evolutionarily conserved cullin domain. With the exception of APC2, each member of the cullin family is modified by Nedd8 and several cullins function in Ubiquitin-dependent proteolysis, a process in which the 26S proteasome recognises and subsequently degrades a target protein tagged with K48-linked poly-ubiquitin chains. Cullins are molecular scaffolds responsible for assembling the ROC1/Rbx1 RING-based E3 ubiquitin ligases, of which several play a direct role in tumorigenesis. Nedd8/Rub1 is a small ubiquitin-like protein, which was originally found to be conjugated to Cdc53, a cullin component of the SCF (Skp1-Cdc53/CUL1-F-box protein) E3 Ub ligase complex in Saccharomyces cerevisiae, and Nedd8 modification has now emerged as a regulatory pathway of fundamental importance for cell cycle control and for embryogenesis in metazoans. The only identified Nedd8 substrates are cullins. Neddylation results in covalent conjugation of a Nedd8 moiety onto a conserved cullin lysine residue [1].
Domain
L [auth R]PF12678RING-H2 zinc finger domain (zf-rbx1)RING-H2 zinc finger domainThere are 8 cysteine/ histidine residues which are proposed to be the conserved residues involved in zinc binding. The protein, of which this domain is the conserved region, participates in diverse functions relevant to chromosome metabolism and cell ...There are 8 cysteine/ histidine residues which are proposed to be the conserved residues involved in zinc binding. The protein, of which this domain is the conserved region, participates in diverse functions relevant to chromosome metabolism and cell cycle control [1].
Domain
E [auth D]PF18420CSN4/RPN5/eIF3a helix turn helix domain (CSN4_RPN5_eIF3a)CSN4/RPN5/eIF3a helix turn helix domainCullin-RING E3 ubiquitin ligases (CRLs) are regulated by the eight-subunit COP9 signalosome (CSN). Enzymatically, CSN functions as an isopeptidase that removes the ubiquitin-like activator NEDD8 from CRLs, but it can also bind deneddylated CRLs and m ...Cullin-RING E3 ubiquitin ligases (CRLs) are regulated by the eight-subunit COP9 signalosome (CSN). Enzymatically, CSN functions as an isopeptidase that removes the ubiquitin-like activator NEDD8 from CRLs, but it can also bind deneddylated CRLs and maintain them in an inactive state. The CSN subunits CSN1, CSN2, CSN3, CSN4, CSN7 and CSN8, share a common domain composition: an N-terminal array of tandem alpha-helical tetratricopeptide/-like repeats, a 34 residue motif, followed by a PCI domain, which encompasses a WH subdomain, a linker, and one or two alpha-helices at the C-terminus. This entry describes the C-terminal helices found on CSN4. The two helices from CSN4 (helices I and II) form a brace roughly perpendicular to the bundle axis in contact with the three C-terminal helices of CSN6. CSN5, whose two C-terminal helices form an antiparallel hairpin, inserts its final C-terminal helix (helix II) into the central CSN6 framework at the core of the bundle. Both CSN1 and CSN4 are dependent on the presence of their C-terminal helix (CSN1 isoform-2 residues: 466-527; and CSN4: 364-406) for integration into CSN. COP9 signalosome shares common architecture with the 26S proteasome lid and eIF3 where the 19S lid subunit RPN5 and the eIF3 core subunit eIF3a share significant structural similarity with CSN4 [1].
Domain
E [auth D]PF01399PCI domain (PCI)PCI domainThis domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth E]COP9 signalosome complex subunit 5
B [auth A]COP9 signalosome complex subunit 1
C [auth B]COP9 signalosome complex subunit 2
D [auth C]COP9 signalosome complex subunit 3-
COP9 signalosome complex subunit 6-
COP9 signalosome complex subunit 7b-
COP9 signalosome complex subunit 8-
I,
K [auth M]
Kelch repeat and BTB domain-containing protein 2- -
J [auth L]Cullin-3
L [auth R]E3 ubiquitin-protein ligase RBX1
E [auth D]COP9 signalosome complex subunit 4

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth E]IPR040961Cop9 signalosome subunit 5 C-terminal domainDomain
A [auth E]IPR037518MPN domainDomain
A [auth E]IPR000555JAB1/MPN/MOV34 metalloenzyme domainDomain
B [auth A]IPR048624COP9 signalosome complex subunit 1, C-terminal helixDomain
B [auth A]IPR01958526S proteasome regulatory subunit Rpn7/COP9 signalosome complex subunit 1Family
B [auth A]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
B [auth A]IPR000717Proteasome component (PCI) domainDomain
B [auth A]IPR04513526S proteasome regulatory subunit Rpn7, N-terminalDomain
C [auth B]IPR011990Tetratricopeptide-like helical domain superfamilyHomologous Superfamily
C [auth B]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
C [auth B]IPR000717Proteasome component (PCI) domainDomain
D [auth C]IPR048621COP9 signalosome complex subunit 3, C-terminal helixDomain
D [auth C]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
D [auth C]IPR000717Proteasome component (PCI) domainDomain
IPR024969EIF3F/CSN6-like, C-terminalDomain
IPR037518MPN domainDomain
IPR033859COP9 signalosome subunit 6Family
IPR000555JAB1/MPN/MOV34 metalloenzyme domainDomain
IPR045237Eukaryotic translation initiation factor 3 subunit M eIF3m/COP9 signalosome complex subunit 7 COPS7Family
IPR041481COP9 signalosome complex subunit 7, helix IDomain
IPR000717Proteasome component (PCI) domainDomain
IPR033205COP9 signalosome, subunit CSN8Family
IPR033464CSN8/PSMD8/EIF3KDomain
IPR000717Proteasome component (PCI) domainDomain
I,
K [auth M]
IPR017096BTB-kelch proteinFamily
I,
K [auth M]
IPR000210BTB/POZ domainDomain
I,
K [auth M]
IPR047074Kelch repeat and BTB domain-containing protein 2, BACK domainDomain
I,
K [auth M]
IPR015915Kelch-type beta propellerHomologous Superfamily
I,
K [auth M]
IPR030586Kelch repeat and BTB domain-containing protein 2, BTB/POZ domainDomain
I,
K [auth M]
IPR006652Kelch repeat type 1Repeat
I,
K [auth M]
IPR011705BTB/Kelch-associatedDomain
I,
K [auth M]
IPR011333SKP1/BTB/POZ domain superfamilyHomologous Superfamily
J [auth L]IPR045093CullinFamily
J [auth L]IPR019559Cullin protein, neddylation domainDomain
J [auth L]IPR016158Cullin homology domainDomain
J [auth L]IPR001373Cullin, N-terminalDomain
J [auth L]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
J [auth L]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
J [auth L]IPR016157Cullin, conserved siteConserved Site
J [auth L]IPR036317Cullin homology domain superfamilyHomologous Superfamily
J [auth L]IPR016159Cullin repeat-like-containing domain superfamilyHomologous Superfamily
L [auth R]IPR024766Zinc finger, RING-H2-typeDomain
L [auth R]IPR013083Zinc finger, RING/FYVE/PHD-typeHomologous Superfamily
L [auth R]IPR001841Zinc finger, RING-typeDomain
E [auth D]IPR041406COP9 signalosome complex subunit 4, helix turn helix domainDomain
E [auth D]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
E [auth D]IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily
E [auth D]IPR000717Proteasome component (PCI) domainDomain
E [auth D]IPR04013426S Proteasome non-ATPase regulatory subunit 12/COP9 signalosome complex subunit 4Family

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A [auth E]PharosQ92905
B [auth A]PharosQ13098
C [auth B]PharosP61201
D [auth C]PharosQ9UNS2
PharosQ7L5N1
PharosQ9H9Q2
PharosQ99627
I,
K [auth M]
PharosQ8IY47
J [auth L]PharosQ13618
L [auth R]PharosP62877
E [auth D]PharosQ9BT78