Table 1.
Proteins involved in sister chromatid cohesion in S. cerevisiae, and their sequence homologs
| Organism | SMC1 proteins/homologs | SMC3 proteins/homologs | Non-SMC proteins/homologs | Loading factors/homologs | ||
| S. cerevisiae | Smc1p | Smc3 | Scc1p/Mcd1p | Scc3/IRRI | Scc2 | Scc4 |
| S. pombe | Psm1/SPBC29A10.04 | Psm3/SPAC10F6.09C | Rad21 | SPAC17H9.20 | Mis4 | ? |
| Rec11 | ||||||
| C. elegans | F28B3.7 | Y47D3A.26 | F10G7.4 | F18e2.3 | ? | ? |
| Drosophila | CG6057 | DCAP | dRAD21/DMscc1 | Stromalin (SA) | Nipped-B | ? |
| Xenopus | XSMC1 | XSMC3 | XRAD21 | ? | ? | ? |
| Mouse | mSMCB | MSMCD | mHR21SPA | SA1 | ? | ? |
| SA2 | ||||||
| SA3 | ||||||
| Bovine | bSMC1 | BSMC3 | ? | ? | ? | ? |
| Human | hSMC1/Sb1.8 | HSMC3/HCAP | hR21PSA | SAG1 | IDN3-B | ? |
| hHR21spB | SAG2 | |||||
| SAG3 | ||||||
| Arabidopsis | ? | CAP/AT2G27170 | Syn1 /Dif1 | SA | ? | ? |
| F17A22.37 | ||||||
The question marks indicate where no sequence homologs could be found.