Electron cryo-microscopy of the eukaryotic translation initiation factor 2B bound to eukaryotic translation initiation factor 2 from Homo sapiens
External Resource: Annotation
- Domain Annotation: SCOP/SCOPe Classification
- Domain Annotation: SCOP2 Classification
- Domain Annotation: ECOD Classification
- Domain Annotation: CATH
- Protein Family Annotation
- Gene Ontology: Gene Product Annotation
- InterPro: Protein Family Classification
- Pharos: Disease Associations
- Protein Modification Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| L [auth M] | d6o9zm2 | All alpha proteins | SAM domain-like | eIF2alpha middle domain-like | automated matches | automated matches | Human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| L [auth M] | d6o9zm1 | All beta proteins | OB-fold | Nucleic acid-binding proteins | automated matches | automated matches | Human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| K [auth L] | d6o9zl2 | All alpha proteins | SAM domain-like | eIF2alpha middle domain-like | automated matches | automated matches | Human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| K [auth L] | d6o9zl1 | All beta proteins | OB-fold | Nucleic acid-binding proteins | automated matches | automated matches | Human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| L [auth M] | SCOP2B Superfamily | eIF2alpha middle domain-like | 8042150 | 3001761 | SCOP2B (2022-06-29) |
| L [auth M] | SCOP2B Superfamily | Nucleic acid-binding proteins | 8042151 | 3000135 | SCOP2B (2022-06-29) |
| 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) |
|---|---|---|---|---|---|---|---|---|
| L [auth M] | S1_1 | e6o9zM2 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: S1_1 | ECOD (1.6) |
| L [auth M] | EIF_2_alpha_N | e6o9zM1 | A: alpha arrays | X: HhH/H2TH | H: eIF2alpha middle domain (From Topology) | T: eIF2alpha middle domain | F: EIF_2_alpha_N | ECOD (1.6) |
| K [auth L] | S1_1 | e6o9zL2 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: S1_1 | ECOD (1.6) |
| K [auth L] | EIF_2_alpha_N | e6o9zL1 | A: alpha arrays | X: HhH/H2TH | H: eIF2alpha middle domain (From Topology) | T: eIF2alpha middle domain | F: EIF_2_alpha_N | ECOD (1.6) |
| J | NTP_transferase | e6o9zJ1 | A: a/b three-layered sandwiches | X: Nucleotide-diphospho-sugar transferases (From Topology) | H: Nucleotide-diphospho-sugar transferases (From Topology) | T: Nucleotide-diphospho-sugar transferases | F: NTP_transferase | ECOD (1.6) |
| I | NTP_transferase | e6o9zI1 | A: a/b three-layered sandwiches | X: Nucleotide-diphospho-sugar transferases (From Topology) | H: Nucleotide-diphospho-sugar transferases (From Topology) | T: Nucleotide-diphospho-sugar transferases | F: NTP_transferase | ECOD (1.6) |
| H | IF-2B_N_1 | e6o9zH2 | A: alpha bundles | X: 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 domain | F: IF-2B_N_1 | ECOD (1.6) |
| H | IF-2B_C | e6o9zH1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| G | IF-2B_N_1 | e6o9zG1 | A: alpha bundles | X: 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 domain | F: IF-2B_N_1 | ECOD (1.6) |
| G | IF-2B_C | e6o9zG2 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| F | IF-2B_N_1 | e6o9zF2 | A: alpha bundles | X: 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 domain | F: IF-2B_N_1 | ECOD (1.6) |
| F | IF-2B_C | e6o9zF1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| E | IF-2B_N_1 | e6o9zE1 | A: alpha bundles | X: 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 domain | F: IF-2B_N_1 | ECOD (1.6) |
| E | IF-2B_C | e6o9zE2 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| D | KOG1465 | e6o9zD2 | A: alpha bundles | X: 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 domain | F: KOG1465 | ECOD (1.6) |
| D | IF-2B_C | e6o9zD1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| C | KOG1465 | e6o9zC2 | A: alpha bundles | X: 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 domain | F: KOG1465 | ECOD (1.6) |
| C | IF-2B_C | e6o9zC1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NagB/RpiA/CoA transferase-like | F: IF-2B_C | ECOD (1.6) |
| B | Hexapep_2_1 | e6o9zB1 | A: beta duplicates or obligate multimers | X: Single-stranded left-handed beta-helix | H: Trimeric LpxA-like enzymes (From Topology) | T: Trimeric LpxA-like enzymes | F: Hexapep_2_1 | ECOD (1.6) |
| B | NTP_transferase | e6o9zB2 | A: a/b three-layered sandwiches | X: Nucleotide-diphospho-sugar transferases (From Topology) | H: Nucleotide-diphospho-sugar transferases (From Topology) | T: Nucleotide-diphospho-sugar transferases | F: NTP_transferase | ECOD (1.6) |
| A | Hexapep_2_1 | e6o9zA2 | A: beta duplicates or obligate multimers | X: Single-stranded left-handed beta-helix | H: Trimeric LpxA-like enzymes (From Topology) | T: Trimeric LpxA-like enzymes | F: Hexapep_2_1 | ECOD (1.6) |
| A | NTP_transferase | e6o9zA1 | A: a/b three-layered sandwiches | X: Nucleotide-diphospho-sugar transferases (From Topology) | H: Nucleotide-diphospho-sugar transferases (From Topology) | T: Nucleotide-diphospho-sugar transferases | F: NTP_transferase | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| K [auth L], L [auth M] | PF07541 | Eukaryotic translation initiation factor 2 alpha subunit (EIF_2_alpha) | Eukaryotic translation initiation factor 2 alpha subunit | - | Family |
| K [auth L], L [auth M] | 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 |
| 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 | |
| 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 |
|---|---|---|
| K [auth L], L [auth M] | :  P05198 | |
| :  Q9NR50 | ||
| :  Q14232 | ||
| :  Q9UI10 | ||
| :  P49770 | ||
| :  Q13144 |
Protein Modification Annotation
| Modified Residue(s) | ||
|---|---|---|
| Chain | Residue(s) | Description |
| K [auth L], L [auth M] | SEP | Parent Component: SER :  AA0037 :  O-phospho-L-serine MOD:00046 |














