Aliases: CPAMD2, C4S, CO4, C4, C4A3, C4A2, C4A4, C4A6, C4B, RG.
Relationship is the entry's genetic[].relationship_type. untyped means the entry has a genetic record for the gene but does not type it; its free-text association is shown instead.
| Disorder | Relationship | Where the gene appears |
|---|---|---|
| Complement Component 2 Deficiency | modifier | |
| Complement Component 4A Deficiency | causativerisk factor loss of function |
mechanism: Absent Functional C4A Protein
|
| Schizophrenia |
untyped
Risk Factor
|
mechanism: Complement-Mediated Excessive Synaptic Pruning
|
Identity from HGNC (snapshot 2026-10-01). Page layers are described in the gene pages documentation.