Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyNagB/RpiA/CoA transferase-like 8101599 3000693 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyNagB/RpiA/CoA transferase-like 8101599 3000693 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyeIF2alpha middle domain-like 8042150 3001761 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyNucleic acid-binding proteins 8042151 3000135 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AIF-2B_N_1e7d45A1 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: IF-2B_N_1ECOD (1.6)
AIF-2B_Ce7d45A2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
BIF-2B_N_1e7d45B1 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: IF-2B_N_1ECOD (1.6)
BIF-2B_Ce7d45B2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
DKOG1465e7d45D2 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: KOG1465ECOD (1.6)
DIF-2B_Ce7d45D1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
CKOG1465e7d45C2 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: KOG1465ECOD (1.6)
CIF-2B_Ce7d45C1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
EHexapep_2_1e7d45E1 A: beta duplicates or obligate multimersX: Single-stranded left-handed beta-helixH: Trimeric LpxA-like enzymes (From Topology)T: Trimeric LpxA-like enzymesF: Hexapep_2_1ECOD (1.6)
ENTP_transferasee7d45E2 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: NTP_transferaseECOD (1.6)
FHexapep_2_1e7d45F2 A: beta duplicates or obligate multimersX: Single-stranded left-handed beta-helixH: Trimeric LpxA-like enzymes (From Topology)T: Trimeric LpxA-like enzymesF: Hexapep_2_1ECOD (1.6)
FNTP_transferasee7d45F1 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: NTP_transferaseECOD (1.6)
GIF-2B_N_1e7d45G2 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: IF-2B_N_1ECOD (1.6)
GIF-2B_Ce7d45G1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
HIF-2B_N_1e7d45H1 A: alpha bundlesX: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)H: Translation initiation factor eIF-2B delta subunit N-terminal helical domain (From Topology)T: Translation initiation factor eIF-2B delta subunit N-terminal helical domainF: IF-2B_N_1ECOD (1.6)
HIF-2B_Ce7d45H2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
IHexapep_2_1e7d45I1 A: beta duplicates or obligate multimersX: Single-stranded left-handed beta-helixH: Trimeric LpxA-like enzymes (From Topology)T: Trimeric LpxA-like enzymesF: Hexapep_2_1ECOD (1.6)
INTP_transferasee7d45I2 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: NTP_transferaseECOD (1.6)
JHexapep_2_1e7d45J1 A: beta duplicates or obligate multimersX: Single-stranded left-handed beta-helixH: Trimeric LpxA-like enzymes (From Topology)T: Trimeric LpxA-like enzymesF: Hexapep_2_1ECOD (1.6)
JNTP_transferasee7d45J2 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: NTP_transferaseECOD (1.6)
KS1_1e7d45K2 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: S1_1ECOD (1.6)
KEIF_2_alpha_Ne7d45K1 A: alpha arraysX: HhH/H2THH: eIF2alpha middle domain (From Topology)T: eIF2alpha middle domainF: EIF_2_alpha_NECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF01008Initiation factor 2 subunit family (IF-2B)Initiation factor 2 subunit family- Family
C, D
PF01008Initiation factor 2 subunit family (IF-2B)Initiation factor 2 subunit family- Family
E, F
PF00483Nucleotidyl transferase (NTP_transferase)Nucleotidyl transferase- Family
G, H
PF01008Initiation factor 2 subunit family (IF-2B)Initiation factor 2 subunit family- Family
PF07541Eukaryotic translation initiation factor 2 alpha subunit (EIF_2_alpha)Eukaryotic translation initiation factor 2 alpha subunit- Family
PF00575S1 RNA binding domain (S1)S1 RNA binding domainThe S1 domain occurs in a wide range of RNA associated proteins. It is structurally similar to cold shock protein which binds nucleic acids. The S1 domain has an OB-fold structure.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Translation initiation factor eIF-2B subunit alpha
C, D
Translation initiation factor eIF-2B subunit beta
E, F
Translation initiation factor eIF-2B subunit gamma
G, H
Translation initiation factor eIF-2B subunit delta
I, J
Translation initiation factor eIF-2B subunit epsilon
Eukaryotic translation initiation factor 2 subunit 1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR000649Initiation factor 2B-relatedFamily
A, B
IPR051501Eukaryotic initiation factor 2B subunits alpha/beta/deltaFamily
A, B
IPR042529Initiation factor 2B-like, C-terminalHomologous Superfamily
A, B
IPR037171NagB/RpiA transferase-likeHomologous Superfamily
A, B
IPR042528Translation initiation factor eIF-2B subunit alpha, N-terminalHomologous Superfamily
C, D
IPR051855Eukaryotic initiation factor 2B subunit betaFamily
C, D
IPR000649Initiation factor 2B-relatedFamily
C, D
IPR042529Initiation factor 2B-like, C-terminalHomologous Superfamily
C, D
IPR037171NagB/RpiA transferase-likeHomologous Superfamily
E, F
IPR051960Eukaryotic Initiation Factor 2B Subunit GammaFamily
E, F
IPR005835Nucleotidyl transferase domainDomain
E, F
IPR029044Nucleotide-diphospho-sugar transferasesHomologous Superfamily
G, H
IPR000649Initiation factor 2B-relatedFamily
G, H
IPR042529Initiation factor 2B-like, C-terminalHomologous Superfamily
G, H
IPR037171NagB/RpiA transferase-likeHomologous Superfamily
I, J
IPR044123Translation initiation factor eIF-2B subunit epsilon, W2 domainDomain
I, J
IPR016024Armadillo-type foldHomologous Superfamily
I, J
IPR003307W2 domainDomain
I, J
IPR035543Translation initiation factor eIF-2B subunit epsilon, N-terminalDomain
I, J
IPR011004Trimeric LpxA-like superfamilyHomologous Superfamily
I, J
IPR029044Nucleotide-diphospho-sugar transferasesHomologous Superfamily
I, J
IPR051956eIF2B Complex Subunit EpsilonFamily
IPR044126IF2a, S1-like domainDomain
IPR024054Translation initiation factor 2, alpha subunit, middle domain superfamilyHomologous Superfamily
IPR024055Translation initiation factor 2, alpha subunit, C-terminalHomologous Superfamily
IPR003029S1 domainDomain
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
IPR011488Translation initiation factor 2, alpha subunitFamily

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
SEP Parent Component: SER

RESIDAA0037

PSI-MOD :  O-phospho-L-serine MOD:00046