Crystal structure Sonic hedgehog bound to the 5E1 fab fragment
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| C [auth H] | d3mxwh1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| C [auth H] | d3mxwh2 | Artifacts | Tags | Tags | Tags | N-terminal Tags | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| B [auth L] | d3mxwl2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| B [auth L] | d3mxwl1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A | d3mxwa_ | Alpha and beta proteins (a+b) | Hedgehog/DD-peptidase | Hedgehog/DD-peptidase | Hedgehog (development protein), N-terminal signaling domain | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| C [auth H] | V-set_8 | e3mxwH1 | 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) |
| C [auth H] | C1-set_1 | e3mxwH2 | 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) |
| B [auth L] | C1-set_4 | e3mxwL2 | 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) |
| B [auth L] | V-set | e3mxwL1 | 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) |
| A | HH_signal | e3mxwA1 | A: a+b two layers | X: Hedgehog/DD-peptidase (From Topology) | H: Hedgehog/DD-peptidase (From Topology) | T: Hedgehog/DD-peptidase | F: HH_signal | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| C [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| B [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| A | 3.30.1380.10 | Alpha Beta | 2-Layer Sandwich | Muramoyl-pentapeptide Carboxypeptidase | domain 2 | 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 |
|---|---|---|---|---|---|---|---|---|
| C [auth H] | 5E1 Fab | VH-CH1 | Homo sapiens (human) | IGHV1-2*02, IGHV1-2*04, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202543-0) |
| B [auth L] | 5E1 Fab | L-KAPPA | Homo sapiens (human) | IGKV1-33*01, IGKV1D-33*01, IGKJ4*01, IGKJ4*02, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202543-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| C [auth H] | Heavy Chain | IGHV1 | - | sonic hedgehog protein | SAbDab (2025-11-07) |
| B [auth L] | Light Chain | IGKV6 | Kappa | sonic hedgehog protein | SAbDab (2025-11-07) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR036844 | Hint domain superfamily | Homologous Superfamily | |
| IPR009045 | Peptidase M74/Hedgehog-like, zinc-binding domain superfamily | Homologous Superfamily | |
| IPR001657 | Hedgehog protein | Family | |
| IPR006141 | Intein N-terminal splicing region | PTM | |
| IPR003586 | Hint domain C-terminal | Domain | |
| IPR003587 | Hint domain N-terminal | Domain | |
| IPR000320 | Hedgehog, N-terminal signalling domain | Domain | |
| IPR001767 | Hedgehog protein, Hint domain | Domain | |
| IPR050387 | Hedgehog Signaling | Family |














