CD22 d1-d3 in complex with therapeutic Fab Epratuzumab
External Resource: Annotation
- Domain Annotation: SCOP/SCOPe Classification
- Domain Annotation: ECOD Classification
- Domain Annotation: CATH
- IMGT Antibody Annotation
- SAbDab Antibody Annotation
- Thera-SAbDab Antibody Annotation
- Protein Family Annotation
- Gene Ontology: Gene Product Annotation
- InterPro: Protein Family Classification
- Pharos: Disease Associations
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
B [auth R] | I-set_4 | e5vl3R1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_4 | ECOD (1.6) |
B [auth R] | V-set_11 | e5vl3R3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_11 | ECOD (1.6) |
B [auth R] | I-set_8 | e5vl3R2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_8 | ECOD (1.6) |
C [auth S] | I-set_4 | e5vl3S2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_4 | ECOD (1.6) |
C [auth S] | V-set_11 | e5vl3S3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_11 | ECOD (1.6) |
C [auth S] | I-set_8 | e5vl3S1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_8 | ECOD (1.6) |
A [auth Q] | I-set_4 | e5vl3Q3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_4 | ECOD (1.6) |
A [auth Q] | V-set_11 | e5vl3Q2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_11 | ECOD (1.6) |
A [auth Q] | I-set_8 | e5vl3Q1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_8 | ECOD (1.6) |
D [auth T] | I-set_4 | e5vl3T3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_4 | ECOD (1.6) |
D [auth T] | V-set_11 | e5vl3T1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_11 | ECOD (1.6) |
D [auth T] | I-set_8 | e5vl3T2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: I-set_8 | ECOD (1.6) |
G [auth E] | V-set_8 | e5vl3E2 | 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) |
G [auth E] | C1-set_1 | e5vl3E1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
E [auth A] | V-set_8 | e5vl3A2 | 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) |
E [auth A] | C1-set_1 | e5vl3A1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
F [auth C] | V-set_8 | e5vl3C1 | 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) |
F [auth C] | C1-set_1 | e5vl3C2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
H | V-set_8 | e5vl3H1 | 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) |
H | C1-set_1 | e5vl3H2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
J [auth D] | C1-set_4 | e5vl3D1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
J [auth D] | V-set | e5vl3D2 | 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 F] | C1-set_4 | e5vl3F1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
K [auth F] | V-set | e5vl3F2 | 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) |
I [auth B] | C1-set_4 | e5vl3B1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
I [auth B] | V-set | e5vl3B2 | 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) |
L | C1-set_4 | e5vl3L2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
L | V-set | e5vl3L1 | 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) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
G [auth E] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
E [auth A] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
F [auth C] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
H | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
J [auth D] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
K [auth F] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
I [auth B] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
L | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | 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 |
---|---|---|---|---|---|---|---|---|
E [auth A], F [auth C], G [auth E], H | Fab Epratuzumab | VH-CH1 | Homo sapiens (human) | IGHV1-3*01, IGHV1-46*01, IGHV1-46*03, IGHV1-69*01, IGHV1-69*11, IGHV1-69*12, IGHV1-69*13, IGHV1-69D*01, IGHV1-69*15, IGHJ6*01, IGHG1*03, IGHG1*08, IGHG1*06 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202515-0) |
I [auth B], J [auth D], K [auth F], L | Fab Epratuzumab | L-KAPPA | Homo sapiens (human) | IGKV4-1*01, IGKJ4*01, IGKJ2*02, IGKJ4*02, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202515-0) |
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 E], H | Heavy Chain | IGHV1 | - | b-cell receptor cd22 | SAbDab (2025-04-25) |
I [auth B], J [auth D], K [auth F], L | Light Chain | IGKV8 | Kappa | b-cell receptor cd22 | SAbDab (2025-04-25) |
Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage
Chain | Name | Target | Provenance Source |
---|---|---|---|
E [auth A], F [auth C], G [auth E], H | Epratuzumab | SIGLEC2/CD22 | Therapeutic SAbDab (2025-04-25) |
I [auth B], J [auth D], K [auth F], L | Epratuzumab | SIGLEC2/CD22 | Therapeutic SAbDab (2025-04-25) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
A [auth Q], B [auth R], C [auth S], D [auth T] | PF13927 | Immunoglobulin domain (Ig_3) | Immunoglobulin domain | This family contains immunoglobulin-like domains. | Domain |
A [auth Q], B [auth R], C [auth S], D [auth T] | PF08205 | CD80-like C2-set immunoglobulin domain (C2-set_2) | CD80-like C2-set immunoglobulin domain | These domains belong to the immunoglobulin superfamily. | Domain |
E [auth A], F [auth C], G [auth E], H | PF07686 | Immunoglobulin V-set domain (V-set) | Immunoglobulin V-set domain | This domain is found in antibodies as well as neural protein P0 and CTL4 amongst others. | Domain |
E [auth A], F [auth C], G [auth E], H | PF07654 | Immunoglobulin C1-set domain (C1-set) | Immunoglobulin C1-set domain | Domain | |
I [auth B], J [auth D], K [auth F], L | PF07686 | Immunoglobulin V-set domain (V-set) | Immunoglobulin V-set domain | This domain is found in antibodies as well as neural protein P0 and CTL4 amongst others. | Domain |
I [auth B], J [auth D], K [auth F], L | PF07654 | Immunoglobulin C1-set domain (C1-set) | Immunoglobulin C1-set domain | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
---|---|---|---|---|
A [auth Q], B [auth R], C [auth S], D [auth T] | B-cell receptor CD22 | |
| |
E [auth A], F [auth C], G [auth E], H | Epratuzumab Fab Heavy Chain | - | - | |
I [auth B], J [auth D], K [auth F], L | Epratuzumab Fab Light Chain | - |