Cryo-EM structure of BG505 SOSIP HIV-1 Env trimer in complex with CD4 receptor (D1D2) and broadly neutralizing darpin bnD.9
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| I | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | SCOP2B (2022-06-29) |
| I | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | Virus ectodomain | 8085614 | 3001628 | SCOP2B (2022-06-29) |
| B | SCOP2B Superfamily | Virus ectodomain | 8085614 | 3001628 | SCOP2B (2022-06-29) |
| E | SCOP2B Superfamily | gp120 core | 8080371 | 3001390 | SCOP2B (2022-06-29) |
| C | SCOP2B Superfamily | gp120 core | 8080371 | 3001390 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | gp120 core | 8080371 | 3001390 | 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 | F_UNCLASSIFIED | e7txdL1 | A: alpha superhelices | X: Repetitive alpha hairpins | H: Ankyrin repeat (From Topology) | T: Ankyrin repeat | F: F_UNCLASSIFIED | ECOD (1.6) |
| K | F_UNCLASSIFIED | e7txdK1 | A: alpha superhelices | X: Repetitive alpha hairpins | H: Ankyrin repeat (From Topology) | T: Ankyrin repeat | F: F_UNCLASSIFIED | ECOD (1.6) |
| J | F_UNCLASSIFIED | e7txdJ1 | A: alpha superhelices | X: Repetitive alpha hairpins | H: Ankyrin repeat (From Topology) | T: Ankyrin repeat | F: F_UNCLASSIFIED | ECOD (1.6) |
| I | F_UNCLASSIFIED | e7txdI2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| H | F_UNCLASSIFIED | e7txdH1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| G | F_UNCLASSIFIED | e7txdG2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| F | F_UNCLASSIFIED | e7txdF1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: F_UNCLASSIFIED | ECOD (1.6) |
| D | F_UNCLASSIFIED | e7txdD1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: F_UNCLASSIFIED | ECOD (1.6) |
| B | F_UNCLASSIFIED | e7txdB1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: F_UNCLASSIFIED | ECOD (1.6) |
| E | F_UNCLASSIFIED | e7txdE1 | A: beta barrels | X: V1/V2 domain in HIV gp120 (From Topology) | H: V1/V2 domain in HIV gp120 (From Topology) | T: V1/V2 domain in HIV gp120 | F: F_UNCLASSIFIED | ECOD (1.6) |
| E | F_UNCLASSIFIED | e7txdE2 | A: a+b two layers | X: Ribosomal protein L31e-like | H: Ribosomal protein L31e/gp120 outer domain (From Topology) | T: Ribosomal protein L31e/gp120 outer domain | F: F_UNCLASSIFIED | ECOD (1.6) |
| E | F_UNCLASSIFIED | e7txdE3 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: F_UNCLASSIFIED | ECOD (1.6) |
| C | F_UNCLASSIFIED | e7txdC1 | A: beta barrels | X: V1/V2 domain in HIV gp120 (From Topology) | H: V1/V2 domain in HIV gp120 (From Topology) | T: V1/V2 domain in HIV gp120 | F: F_UNCLASSIFIED | ECOD (1.6) |
| C | F_UNCLASSIFIED | e7txdC3 | A: a+b two layers | X: Ribosomal protein L31e-like | H: Ribosomal protein L31e/gp120 outer domain (From Topology) | T: Ribosomal protein L31e/gp120 outer domain | F: F_UNCLASSIFIED | ECOD (1.6) |
| C | F_UNCLASSIFIED | e7txdC2 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: F_UNCLASSIFIED | ECOD (1.6) |
| A | F_UNCLASSIFIED | e7txdA2 | A: beta barrels | X: V1/V2 domain in HIV gp120 (From Topology) | H: V1/V2 domain in HIV gp120 (From Topology) | T: V1/V2 domain in HIV gp120 | F: F_UNCLASSIFIED | ECOD (1.6) |
| A | F_UNCLASSIFIED | e7txdA1 | A: a+b two layers | X: Ribosomal protein L31e-like | H: Ribosomal protein L31e/gp120 outer domain (From Topology) | T: Ribosomal protein L31e/gp120 outer domain | F: F_UNCLASSIFIED | ECOD (1.6) |
| A | F_UNCLASSIFIED | e7txdA3 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: F_UNCLASSIFIED | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| E | 2.170.40.20 | Mainly Beta | Beta Complex | HIV Envelope Protein Gp120 | Chain G | CATH (utative) |
| C | 2.170.40.20 | Mainly Beta | Beta Complex | HIV Envelope Protein Gp120 | Chain G | CATH (utative) |
| A | 2.170.40.20 | Mainly Beta | Beta Complex | HIV Envelope Protein Gp120 | Chain G | CATH (utative) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF05790 | Immunoglobulin C2-set domain (C2-set) | Immunoglobulin C2-set domain | Domain | ||
| PF00047 | Immunoglobulin domain (ig) | Immunoglobulin domain | Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-prote ... | Domain | |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR021963 | T cell CD4 receptor C-terminal region | Domain | |
| IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily | |
| IPR013106 | Immunoglobulin V-set domain | Domain | |
| IPR000973 | T-cell surface antigen CD4 | Family | |
| IPR003599 | Immunoglobulin domain subtype | Domain | |
| IPR008424 | Immunoglobulin C2-set | Domain | |
| IPR013151 | Immunoglobulin-like beta-sandwich domain | Domain | |
| IPR015274 | CD4, extracellular | Domain | |
| IPR013783 | Immunoglobulin-like fold | Homologous Superfamily | |
| IPR007110 | Immunoglobulin-like domain | Domain | |
| IPR003598 | Immunoglobulin subtype 2 | Domain | |
| IPR000777 | Human immunodeficiency virus 1, envelope glycoprotein Gp120 | Domain | |
| IPR036377 | Gp120 core superfamily | Homologous Superfamily | |
| IPR000328 | Retroviral envelope protein GP41-like | Domain | |
| IPR037527 | Envelope glycoprotein Gp160 | Family | |
| IPR000777 | Human immunodeficiency virus 1, envelope glycoprotein Gp120 | Domain | |
| IPR036377 | Gp120 core superfamily | Homologous Superfamily | |
| IPR000328 | Retroviral envelope protein GP41-like | Domain | |
| IPR037527 | Envelope glycoprotein Gp160 | Family |














