| Gene Symbol | C4A |
| Full Name | Complement Component 4A (Chido/Rodgers Blood Group) |
| Aliases | Complement component C4A gene, Complement Component 4A |
| Chromosome | 6p21.3 |
| Function | encodes a critical protein in the classical complement cascade, a key component of the innate immune system. |
| Molecular Weight | 104 kDa |
| Amino Acids | 1741 aa |
| UniProt ID | P0C0P0 |
| NCBI Gene ID | 712 |
| Ensembl ID | ENSG00000144711 |
| OMIM | 120810 |
| GeneCards | C4A |
| Human Protein Atlas | C4A |
| Protein Class | Complement system serine protease |
| Cell Type | Expression Level |
| Associated Diseases | ALS |
| Interactions | C4B, PSP, C4 |
| KG Connections | 37 knowledge graph edges |
| Databases | GeneCardsHPASTRING |