Structure of human 1G05 Fab in complex with influenza virus neuraminidase from B/Phuket/3073/2013
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| A [auth I] | SCOP2B Superfamily | Sialidases | 8096842 | 3001607 | SCOP2B (2022-06-29) |
| B [auth M] | SCOP2B Superfamily | Sialidases | 8096842 | 3001607 | SCOP2B (2022-06-29) |
| C [auth N] | SCOP2B Superfamily | Sialidases | 8096842 | 3001607 | SCOP2B (2022-06-29) |
| D [auth W] | SCOP2 Family | Sialidases (neuraminidases) | 8096841 | 4002683 | SCOP2 (2022-06-29) |
| D [auth W] | SCOP2 Superfamily | Sialidases | 8096842 | 3001607 | 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 [auth I] | ACR_tran | e6v4nI1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| B [auth M] | ACR_tran | e6v4nM1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| C [auth N] | ACR_tran | e6v4nN1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| D [auth W] | ACR_tran | e6v4nW1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| E [auth A] | ACR_tran | e6v4nA1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| F [auth C] | ACR_tran | e6v4nC1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| G [auth D] | ACR_tran | e6v4nD1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| H | ACR_tran | e6v4nH1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| I [auth B] | ACR_tran | e6v4nB1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| J [auth E] | ACR_tran | e6v4nE1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| K [auth G] | ACR_tran | e6v4nG1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
| L | ACR_tran | e6v4nL1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ACR_tran | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| E [auth A] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| F [auth C] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| G [auth D] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| H | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| I [auth B] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| J [auth E] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| K [auth G] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| L | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
IMGT Antibody Annotation IMGT Database Homepage
| Chain | Protein Name | Description | Organism Name | Gene Allele Name(s) | Domain Name(s) | Receptor Type | Receptor Description | Provenance Source |
|---|---|---|---|---|---|---|---|---|
| E [auth A], F [auth C], G [auth D], H | Fab 1G05, broadly protective | VH-CH1 | Homo sapiens (human) | IGHV4-59*11, IGHJ6*04, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202614-0) |
| I [auth B], J [auth E], K [auth G], L | Fab 1G05, broadly protective | L-KAPPA | Homo sapiens (human) | IGKV1-39*01, IGKV1D-39*01, IGKJ1*01, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202614-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| E [auth A], F [auth C], G [auth D], H | Heavy Chain | IGHV4 | - | neuraminidase | SAbDab (2026-04-17) |
| I [auth B], J [auth E], K [auth G], L | Light Chain | IGKV1 | Kappa | neuraminidase | SAbDab (2026-04-17) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| A [auth I], B [auth M], C [auth N], D [auth W] | Neuraminidase | |||
| E [auth A], F [auth C], G [auth D], H | Antibody Fab heavy chain | - | - | - |
| I [auth B], J [auth E], K [auth G], L | Antibody Fab light chain | - | - | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| A [auth I], B [auth M], C [auth N], D [auth W] | IPR001860 | Glycoside hydrolase, family 34 | Family |
| A [auth I], B [auth M], C [auth N], D [auth W] | IPR036278 | Sialidase superfamily | Homologous Superfamily |














