Electron cryo-microscopy of the eukaryotic translation initiation factor 2B bound to eukaryotic translation initiation factor 2 from Homo sapiens
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| K [auth L] | SCOP2B Superfamily | Nucleic acid-binding proteins | 8042151 | 3000135 | SCOP2B (2022-06-29) |
| K [auth L] | SCOP2B Superfamily | eIF2alpha middle domain-like | 8042150 | 3001761 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | NagB/RpiA/CoA transferase-like | 8101599 | 3000693 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | NagB/RpiA/CoA transferase-like | 8101599 | 3000693 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B | DnaB_C, TIP49 | e6o85B1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| A | DnaB_C, TIP49 | e6o85A1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| D | DnaB_C, TIP49 | e6o85D1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| C | DnaB_C, TIP49 | e6o85C1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| K [auth L] | DnaB_C, TIP49 | e6o85L1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| L [auth S] | DnaB_C, TIP49 | e6o85S1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| J | DnaB_C, TIP49 | e6o85J1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| I | DnaB_C, TIP49 | e6o85I1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| H | DnaB_C, TIP49 | e6o85H1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| G | DnaB_C, TIP49 | e6o85G1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| F | DnaB_C, TIP49 | e6o85F1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
| E | DnaB_C, TIP49 | e6o85E1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: DnaB_C, TIP49 | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| B | 3.90.550.10 | Alpha Beta | Alpha-Beta Complex | Spore Coat Polysaccharide Biosynthesis Protein SpsA | Chain A | CATH (utative) |
| A | 3.90.550.10 | Alpha Beta | Alpha-Beta Complex | Spore Coat Polysaccharide Biosynthesis Protein SpsA | Chain A | CATH (utative) |
| H | 1.20.120.1070 | Mainly Alpha | Up-down Bundle | Four Helix Bundle (Hemerythrin (Met), subunit A) | Translation initiation factor eIF-2B, N-terminal domain | CATH (utative) |
| H | 3.40.50.10470 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Translation initiation factor eif-2b | CATH (utative) |
| G | 1.20.120.1070 | Mainly Alpha | Up-down Bundle | Four Helix Bundle (Hemerythrin (Met), subunit A) | Translation initiation factor eIF-2B, N-terminal domain | CATH (utative) |
| G | 3.40.50.10470 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Translation initiation factor eif-2b | CATH (utative) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF02020 | eIF4-gamma/eIF5/eIF2-epsilon (W2) | eIF4-gamma/eIF5/eIF2-epsilon | - | Repeat | |
| PF01008 | Initiation factor 2 subunit family (IF-2B) | Initiation factor 2 subunit family | - | Family | |
| K [auth L] | PF07541 | Eukaryotic translation initiation factor 2 alpha subunit (EIF_2_alpha) | Eukaryotic translation initiation factor 2 alpha subunit | - | Family |
| K [auth L] | PF00575 | S1 RNA binding domain (S1) | S1 RNA binding domain | The 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 |
| L [auth S] | PF00009 | Elongation factor Tu GTP binding domain (GTP_EFTU) | Elongation factor Tu GTP binding domain | This domain contains a P-loop motif, also found in several other families such as Pfam:PF00071, Pfam:PF00025 and Pfam:PF00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains. | Domain |
| L [auth S] | PF03144 | Elongation factor Tu domain 2 (GTP_EFTU_D2) | Elongation factor Tu domain 2 | 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 e ... | Domain |
| L [auth S] | PF09173 | Initiation factor eIF2 gamma, C terminal (eIF2_C) | Initiation factor eIF2 gamma, C terminal | Members 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 |
| PF00483 | Nucleotidyl transferase (NTP_transferase) | Nucleotidyl transferase | - | Family | |
| PF01008 | Initiation factor 2 subunit family (IF-2B) | Initiation factor 2 subunit family | - | Family | |
| PF01008 | Initiation factor 2 subunit family (IF-2B) | Initiation factor 2 subunit family | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Pharos: Disease Associations Pharos Homepage Annotation
| Chains | Drug Target   | Associated Disease |
|---|---|---|
| :  Q13144 | ||
| :  P49770 | ||
| K [auth L] | :  P05198 | |
| L [auth S] | :  P41091 | |
| :  Q9NR50 | ||
| :  Q14232 | ||
| :  Q9UI10 |














