anti-HIV-1 gp120-sCD4 complex antibody CG10 Fab in complex with B41-sCD4
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| I [auth F] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| I [auth F] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | SCOP2B (2022-06-29) |
| G [auth E] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | SCOP2B (2022-06-29) |
| G [auth E] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| E [auth D] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054739 | 3000071 | SCOP2B (2022-06-29) |
| E [auth D] | SCOP2B Superfamily | Immunoglobulin (Ig) domain-like | 8054493 | 3000071 | 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) |
|---|---|---|---|---|---|---|---|---|
| O [auth Q] | V-set | e8d5cQ1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| M [auth J] | V-set | e8d5cJ1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| K [auth L] | V-set | e8d5cL1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| N [auth P] | V-set_8 | e8d5cP1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| L [auth I] | V-set_8 | e8d5cI1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| J [auth H] | V-set_8 | e8d5cH1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| I [auth F] | C2-set | e8d5cF1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C2-set | ECOD (1.6) |
| I [auth F] | V-set_9 | e8d5cF2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_9 | ECOD (1.6) |
| G [auth E] | C2-set | e8d5cE1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C2-set | ECOD (1.6) |
| G [auth E] | V-set_9 | e8d5cE2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_9 | ECOD (1.6) |
| E [auth D] | C2-set | e8d5cD2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C2-set | ECOD (1.6) |
| E [auth D] | V-set_9 | e8d5cD1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_9 | ECOD (1.6) |
| H [auth C] | F_UNCLASSIFIED | e8d5cC3 | 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) |
| H [auth C] | GP120_3rd | e8d5cC2 | 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: GP120_3rd | ECOD (1.6) |
| H [auth C] | GP120_1st | e8d5cC1 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: GP120_1st | ECOD (1.6) |
| F [auth B] | F_UNCLASSIFIED | e8d5cB3 | 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) |
| F [auth B] | GP120_3rd | e8d5cB1 | 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: GP120_3rd | ECOD (1.6) |
| F [auth B] | GP120_1st | e8d5cB2 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: GP120_1st | ECOD (1.6) |
| D [auth A] | F_UNCLASSIFIED | e8d5cA1 | 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) |
| D [auth A] | GP120_3rd | e8d5cA2 | 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: GP120_3rd | ECOD (1.6) |
| D [auth A] | GP120_1st | e8d5cA3 | A: a+b two layers | X: gp120 inner domain (From Topology) | H: gp120 inner domain (From Topology) | T: gp120 inner domain | F: GP120_1st | ECOD (1.6) |
| C [auth Z] | GP41_1st | e8d5cZ1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: GP41_1st | ECOD (1.6) |
| B [auth Y] | GP41_1st | e8d5cY1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: GP41_1st | ECOD (1.6) |
| A [auth X] | GP41_1st | e8d5cX1 | A: a+b duplicates or obligate multimers | X: MPER trimer (From Topology) | H: MPER trimer (From Topology) | T: MPER trimer | F: GP41_1st | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| O [auth Q] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| M [auth J] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| K [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| N [auth P] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| L [auth I] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| J [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| K [auth L], M [auth J], O [auth Q] | Light Chain | IGKV3 | Kappa | envelope glycoprotein gp160 | t-cell surface glycoprotein cd4 | SAbDab (2025-12-12) |
| J [auth H], L [auth I], N [auth P] | Heavy Chain | IGHV1 | - | envelope glycoprotein gp160 | t-cell surface glycoprotein cd4 | SAbDab (2025-12-12) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| E [auth D], G [auth E], I [auth F] | PF05790 | Immunoglobulin C2-set domain (C2-set) | Immunoglobulin C2-set domain | Domain | |
| E [auth D], G [auth E], I [auth F] | 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 |
| D [auth A], F [auth B], H [auth C] | PF00516 | Envelope glycoprotein GP120 (GP120) | Envelope glycoprotein GP120 | The envelope glycoprotein Gp160 of HIV1 is cleaved into the surface protein Gp120 and the transmembrane protein Gp41. The entry of HIV requires interaction of viral GP120 with the CD4 glycoprotein (Swiss:P01730) and a chemokine receptor on the cell s ... | Domain |
| A [auth X], B [auth Y], C [auth Z] | PF00517 | Retroviral envelope protein (GP41) | Retroviral envelope protein | - | Family |














