Cohesin complex subunits
| Species | Gene | |||
| S. cerevisiae | Smc1 | Smc3 | Mcd1/Scc1 | Scc3/Irr1 |
| Rec8a | ||||
| S. pombe | Psm1 | Psm3 | Rad21 | Psc3 |
| Rec8a | Rec11a | |||
| C. elegans | Him-1 | Smc-3 | Coh-1/Scc-1 | Scc-3 |
| Rec8/Coh-3a | ||||
| D. melanogaster | Smc1 | Cap | Rad21 | SA |
| c(2)Ma | ||||
| X. laevis | Smc1 | Smc3 | Rad21 | Stag1, Stag2 |
| Rec8a | ||||
| H. sapiens | Smc1α | Smc3 | Rad21 | Stag1, Stag2 Stag3a |
| Smc1βa | Rec8a | |||
| Species | Gene | |||
| Smc1 | Smc3 | Mcd1/Scc1 | Scc3/Irr1 | |
| Rec8 | ||||
| Psm1 | Psm3 | Rad21 | Psc3 | |
| Rec8 | Rec11 | |||
| Him-1 | Smc-3 | Coh-1/Scc-1 | Scc-3 | |
| Rec8/Coh-3 | ||||
| Smc1 | Cap | Rad21 | SA | |
| c(2)M | ||||
| Smc1 | Smc3 | Rad21 | Stag1, Stag2 | |
| Rec8 | ||||
| Smc1α | Smc3 | Rad21 | Stag1, Stag2 Stag3 | |
| Smc1β | Rec8 | |||
SA, stromal antigen.
Meiosis-specific function.
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