| Entrez gene ID | | 24233 |
| Official gene symbol | | C4b |
| Full name | | complement component 4B (Chido blood group) |
| Aliases | | C4,C4-1,C4a |
| Gene summary | | complement protein, part of the classical activation pathway; localizes to the class III region of the MHC [RGD] |
| Location | | Chromosome: 20 Locus: 20p12 |
| Gene position | | 4106122 - 4145903 Map Viewer |
| Gene orientation | | plus |
| Gene size | | 39782 bp |
| Gene sequence |
| |