Structure of mammalian eIF3 in the context of the 43S preinitiation complex
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| B [auth C] | SCOP2 Family | Eukaryotic translation initiation factor 3 subunit C (EIF3C), N-terminal domain-like | 8047255 | 4005530 | SCOP2 (2022-06-29) |
| B [auth C] | SCOP2 Family | PCI domain (PINT motif) | 8093048 | 4000147 | SCOP2 (2022-06-29) |
| B [auth C] | SCOP2 Superfamily | TPR-like | 8093045 | 3001345 | SCOP2 (2022-06-29) |
| B [auth C] | SCOP2 Superfamily | Winged helix DNA-binding domain | 8093052 | 3000034 | SCOP2 (2022-06-29) |
| C [auth E] | SCOP2 Family | EIF3E-like | 8044847 | 4004173 | SCOP2 (2022-06-29) |
| C [auth E] | SCOP2 Family | PCI domain (PINT motif) | 8091487 | 4000147 | SCOP2 (2022-06-29) |
| C [auth E] | SCOP2 Superfamily | TPR-like | 8091484 | 3001345 | SCOP2 (2022-06-29) |
| C [auth E] | SCOP2 Superfamily | Winged helix DNA-binding domain | 8091488 | 3000034 | SCOP2 (2022-06-29) |
| D [auth F] | SCOP2 Family | EIF3 subunit F C-terminal domain-like | 8048105 | 4005957 | SCOP2 (2022-06-29) |
| D [auth F] | SCOP2 Family | JAB1/Mov34/MPN/PAD-1/JAMM domain-like | 8048973 | 4006292 | SCOP2 (2022-06-29) |
| D [auth F] | SCOP2 Superfamily | EIF3 subunit F C-terminal domain-like | 8053239 | 3002167 | SCOP2 (2022-06-29) |
| D [auth F] | SCOP2 Superfamily | JAB1/MPN domain-like | 8053240 | 3001105 | SCOP2 (2022-06-29) |
| E [auth H] | SCOP2 Family | JAB1/Mov34/MPN/PAD-1/JAMM domain-like | 8048977 | 4006292 | SCOP2 (2022-06-29) |
| E [auth H] | SCOP2 Family | EIF3 subunit F C-terminal domain-like | 8053285 | 4005957 | SCOP2 (2022-06-29) |
| E [auth H] | SCOP2 Superfamily | JAB1/MPN domain-like | 8053286 | 3001105 | SCOP2 (2022-06-29) |
| E [auth H] | SCOP2 Superfamily | EIF3 subunit F C-terminal domain-like | 8053287 | 3002167 | SCOP2 (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | PCI | e5a5tA1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Fibronectin type I module-like | T: Fibronectin type I module | F: PCI | ECOD (v294.1) |
| B [auth C] | PCI | e5a5tC1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Fibronectin type I module-like | T: Fibronectin type I module | F: PCI | ECOD (v294.1) |
| C [auth E] | PCI | e5a5tE1 | A: a/b three-layered sandwiches | X: Cytidine deaminase-like | H: KorB C-terminal domain | T: KorB C-terminal domain | F: PCI | ECOD (v294.1) |
| C [auth E] | Fumble | e5a5tE3 | A: a/b three-layered sandwiches | X: Cytidine deaminase-like | H: KorB C-terminal domain | T: KorB C-terminal domain | F: Fumble | ECOD (v294.1) |
| D [auth F] | T_Ag_DNA_bind | e5a5tF1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: RNA polymerase I subunits A49/A34.5 dimerization domains | F: T_Ag_DNA_bind | ECOD (v294.1) |
| D [auth F] | MitMem_reg | e5a5tF2 | A: a/b three-layered sandwiches | X: Type II ABC importer transmembrane domain fold | H: Type II ABC importer transmembrane domain fold | T: Type II ABC importer transmembrane domain fold | F: MitMem_reg | ECOD (v294.1) |
| E [auth H] | T_Ag_DNA_bind | e5a5tH1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: RNA polymerase I subunits A49/A34.5 dimerization domains | F: T_Ag_DNA_bind | ECOD (v294.1) |
| E [auth H] | SPRY | e5a5tH2 | A: a/b three-layered sandwiches | X: Type II ABC importer transmembrane domain fold | H: Type II ABC importer transmembrane domain fold | T: Type II ABC importer transmembrane domain fold | F: SPRY | ECOD (v294.1) |
| F [auth K] | T_Ag_DNA_bind | e5a5tK1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: RNA polymerase I subunits A49/A34.5 dimerization domains | F: T_Ag_DNA_bind | ECOD (v294.1) |
| H [auth M] | PCI | e5a5tM1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Fibronectin type I module-like | T: Fibronectin type I module | F: PCI | ECOD (v294.1) |
| H [auth M] | EFG_C | e5a5tM3 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Fibronectin type I module-like | T: Fibronectin type I module | F: EFG_C | ECOD (v294.1) |
| G [auth L] | PCI | e5a5tL1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Fibronectin type I module-like | T: Fibronectin type I module | F: PCI | ECOD (v294.1) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF22591 | eIF3a, PCI domain, TPR-like region (eIF3a_PCI_TPR-like) | eIF3a, PCI domain, TPR-like region | - | Repeat | |
| PF01399 | PCI domain (PCI) | PCI domain | This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1]. | Domain | |
| B [auth C] | PF26569 | EIF3CL-like, C-terminal domain (EIF3CL_C) | EIF3CL-like, C-terminal domain | This domain is found at the C-terminal end of human Eukaryotic translation initiation factor 3 subunit C-like protein (EIF3CL) and similar proteins. EIF3CL is a component of the eukaryotic translation initiation factor 3 (eIF-3) complex. This domain ... | Domain |
| B [auth C] | PF01399 | PCI domain (PCI) | PCI domain | This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1]. | Domain |
| C [auth E] | PF09440 | eIF3 subunit 6 N terminal domain (eIF3_N) | eIF3 subunit 6 N terminal domain | This is the N terminal domain of subunit 6 translation initiation factor eIF3. | Domain |
| C [auth E] | PF21357 | Eukaryotic translation initiation factor 3 subunit E, C-terminal (EIF3E_C) | Eukaryotic translation initiation factor 3 subunit E, C-terminal | Eukaryotic translation initiation factor 3 subunit E (EIF3E) is a component of the EIF3 complex, involved in protein synthesis. This is the C-terminal helical tail of EIF3E [1]. | Domain |
| C [auth E] | PF01399 | PCI domain (PCI) | PCI domain | This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1]. | Domain |
| E [auth H] | PF19445 | C-terminal region of eIF3h (eIF3h_C) | C-terminal region of eIF3h | - | Family |
| E [auth H] | PF01398 | JAB1/Mov34/MPN/PAD-1 ubiquitin protease (JAB) | JAB1/Mov34/MPN/PAD-1 ubiquitin protease | Proteins with this domain are found in proteasome regulatory subunits, eukaryotic initiation factor 3 (eIF3) subunits and regulators of transcription factors. This domain is known as the MPN domain [3] and PAD-1-like domain [4], JABP1 domain [5] or J ... | Domain |
| F [auth K] | PF10075 | CSN8/PSMD8/EIF3K family (CSN8_PSD8_EIF3K) | CSN8/PSMD8/EIF3K family | - | Family |
| H [auth M] | PF18005 | eIF3 subunit M, C-terminal helix (eIF3m_C_helix) | eIF3 subunit M, C-terminal helix | This is the C-terminal helix domain found in Eukaryotic translation initiation factor 3 subunit M (eIF3m). In mammalian eIF3a, the C-terminal helix following the PCI domain is involved in interactions with other core subunits [1]. | Domain |
| H [auth M] | PF01399 | PCI domain (PCI) | PCI domain | This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1]. | Domain |














