Co-crystal structure of a cross-reactive bactericidal human antibody targeting meningococcal vaccine antigen factor H binding protein
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| E [auth L] | d5o14l1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| D | d5o14d1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| F [auth H] | d5o14h_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| C | d5o14c_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| E [auth L] | SAM_KSR1_N | e5o14L1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: SAM_KSR1_N | ECOD (v294.1) |
| D | CTP_transf_like | e5o14D1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: CTP_transf_like | ECOD (v294.1) |
| F [auth H] | SAM_KSR1_N | e5o14H1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: SAM_KSR1_N | ECOD (v294.1) |
| C | SAM_KSR1_N | e5o14C1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: SAM_KSR1_N | ECOD (v294.1) |
| B | SAM_KSR1_N | e5o14B1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: SAM_KSR1_N | ECOD (v294.1) |
| A | CTP_transf_like | e5o14A1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: CTP_transf_like | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| E [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| D | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| F [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| C | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| B | 2.60.40.1980 | Mainly Beta | Sandwich | Immunoglobulin-like | CATH (4.3.0) | |
| B | 2.40.160.90 | Mainly Beta | Beta Barrel | Porin | CATH (4.3.0) | |
| A | 2.60.40.1980 | Mainly Beta | Sandwich | Immunoglobulin-like | CATH (4.3.0) | |
| A | 2.40.160.90 | Mainly Beta | Beta Barrel | Porin | CATH (4.3.0) |
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 |
|---|---|---|---|---|---|---|---|---|
| D, E [auth L] | Fab 1A12 | L-KAPPA | Homo sapiens (human) | IGKV1-39*01, IGKV1D-39*01, IGKJ1*01, IGKJ2*01, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202613-0) |
| C, F [auth H] | Fab 1A12 | VH-CH1 | Homo sapiens (human) | IGHV5-51*01, IGHV5-51*02, IGHV5-51*03, IGHJ1*01, IGHJ4*01, IGHJ4*02, IGHJ4*03, 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 (202613-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| D, E [auth L] | Light Chain | IGKV1 | Kappa | factor h binding protein variant 1.1 | SAbDab (2026-04-10) |
| C, F [auth H] | Heavy Chain | IGHV5 | - | factor h binding protein variant 1.1 | SAbDab (2026-04-10) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF08794 | Factor H binding protein, C-terminal (FHBP_C) | Factor H binding protein, C-terminal | Factor H binding protein (also known as GNA1870) is a surface exposed lipoprotein in Neisseria meningitidis that is a potent antigen and a potential candidate for a vaccine against meningococcal disease [1-4]. The structure of the C-terminal domain c ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| D, E [auth L] | Fab 1A12 Light Chain | - | - | - |
| C, F [auth H] | Fab 1A12 Heavy Chain | - | - | - |
| Factor H binding protein variant 1.1 | - | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR011250 | Outer membrane protein/outer membrane enzyme PagP, beta-barrel | Homologous Superfamily | |
| IPR014902 | Factor H binding protein-like, C-terminal | Domain | |
| IPR049377 | Factor H binding protein, N-terminal | Domain | |
| IPR049378 | Factor H binding protein | Family |














