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 SuperfamilyNucleic acid-binding proteins 8042151 3000135 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyeIF2alpha middle domain-like 8042150 3001761 SCOP2B (2022-06-29)
LSCOP2B SuperfamilyeIF2alpha middle domain-like 8042150 3001761 SCOP2B (2022-06-29)
LSCOP2B 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_1e7d43A2 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_Ce7d43A1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
BIF-2B_N_1e7d43B1 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_Ce7d43B2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
CKOG1465e7d43C2 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_Ce7d43C1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
DKOG1465e7d43D1 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_Ce7d43D2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
EHexapep_2_1e7d43E1 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_transferasee7d43E2 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_1e7d43F2 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_transferasee7d43F1 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_1e7d43G2 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_Ce7d43G1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
HIF-2B_N_1e7d43H2 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_Ce7d43H1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NagB/RpiA/CoA transferase-likeF: IF-2B_CECOD (1.6)
IHexapep_2_1e7d43I1 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_transferasee7d43I2 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_1e7d43J1 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_transferasee7d43J2 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_1e7d43K2 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: S1_1ECOD (1.6)
KEIF_2_alpha_Ne7d43K3 A: alpha arraysX: HhH/H2THH: eIF2alpha middle domain (From Topology)T: eIF2alpha middle domainF: EIF_2_alpha_NECOD (1.6)
KEIF_2_alpha_Ce7d43K1 A: a+b two layersX: Alpha-beta plaitsH: eIF-2-alpha, C-terminal domain (From Topology)T: eIF-2-alpha, C-terminal domainF: EIF_2_alpha_CECOD (1.6)
LS1_1e7d43L2 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: S1_1ECOD (1.6)
LEIF_2_alpha_Ne7d43L1 A: alpha arraysX: HhH/H2THH: eIF2alpha middle domain (From Topology)T: eIF2alpha middle domainF: EIF_2_alpha_NECOD (1.6)
N [auth P]GTP_EFTU_D2_2e7d43P2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: GTP_EFTU_D2_2ECOD (1.6)
N [auth P]eIF2_Ce7d43P1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Aminomethyltransferase beta-barrel domainF: eIF2_CECOD (1.6)
N [auth P]MnmE_helical_2nde7d43P3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: MnmE_helical_2ndECOD (1.6)
N [auth P]KOG0466e7d43P4 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: KOG0466ECOD (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
K, L
PF07541Eukaryotic translation initiation factor 2 alpha subunit (EIF_2_alpha)Eukaryotic translation initiation factor 2 alpha subunit- Family
K, L
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
N [auth P]PF09173Initiation factor eIF2 gamma, C terminal (eIF2_C)Initiation factor eIF2 gamma, C terminalMembers of this family, which are found in the initiation factors eIF2 and EF-Tu, adopt a structure consisting of a beta barrel with Greek key topology. They are required for formation of the ternary complex with GTP and initiator tRNA [1].Domain
N [auth P]PF03144Elongation factor Tu domain 2 (GTP_EFTU_D2)Elongation factor Tu domain 2Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as e ...Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as elongation factor G and translation initiation factor IF-2. This domain is structurally related to Pfam:PF03143, and in fact has weak sequence matches to this domain.
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
K, L
Eukaryotic translation initiation factor 2 subunit 1
Eukaryotic translation initiation factor 2 subunit 2
N [auth P]Eukaryotic translation initiation factor 2 subunit 3

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
K, L
IPR044126IF2a, S1-like domainDomain
K, L
IPR024054Translation initiation factor 2, alpha subunit, middle domain superfamilyHomologous Superfamily
K, L
IPR024055Translation initiation factor 2, alpha subunit, C-terminalHomologous Superfamily
K, L
IPR003029S1 domainDomain
K, L
IPR012340Nucleic acid-binding, OB-foldHomologous Superfamily
K, L
IPR011488Translation initiation factor 2, alpha subunitFamily
IPR016190Translation initiation factor IF2/IF5, zinc-bindingHomologous Superfamily
IPR016189Translation initiation factor IF2/IF5, N-terminalHomologous Superfamily
IPR002735Translation initiation factor IF2/IF5 domainDomain
IPR045196Translation initiation factor IF2/IF5Family
N [auth P]IPR000795Translational (tr)-type GTP-binding domainDomain
N [auth P]IPR009001Translation elongation factor EF1A/initiation factor IF2gamma, C-terminalHomologous Superfamily
N [auth P]IPR004161Translation elongation factor EFTu-like, domain 2Domain
N [auth P]IPR050543Eukaryotic Initiation Factor 2 Gamma SubunitFamily
N [auth P]IPR044128Initiation factor eIF2 gamma, GTP-binding domainDomain
N [auth P]IPR015256Initiation factor eIF2 gamma, C-terminalDomain
N [auth P]IPR009000Translation protein, beta-barrel domain superfamilyHomologous Superfamily
N [auth P]IPR044127Initiation factor eIF2 gamma, domain 2Domain
N [auth P]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A, B
PharosQ14232
C, D
PharosP49770
E, F
PharosQ9NR50
G, H
PharosQ9UI10
I, J
PharosQ13144
K, L
PharosP05198
PharosP20042
N [auth P]PharosP41091

Protein Modification Annotation

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

RESIDAA0037

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