A family of low molecular weight proteins that bind ACTIN and control actin polymerization. They are found in eukaryotes and are ubiquitously expressed. (mesh:D051304)
| Synonym | Reference | Specificity |
| profilin | Exact | |
| profilins | Exact | |
| Profilin | Exact | |
| Profilins | Exact |
| Identifier | Name | Relation |
| HGNC:8881 | PFN1 | isa |
| HGNC:18627 | PFN3 | isa |
| HGNC:8882 | PFN2 | isa |
| HGNC:31103 | PFN4 | isa |