The topology and structure of these subunits has been best characterized in budding yeast (Haering et al. 2002, 2004), but the sequence conservation of these proteins and biochemical and electron microscopic observations imply that cohesin complexes in other species are very similar in their structure, .
A topoloxía e estrutura destas subunidades foi caracterizada no lévedo de xemación (Haering et al. 2002, 2004), pero a conservación de secuencia destas proteínas e as observacións bioquímicas e de microscopia electrónica indican que os complexos de cohesina noutras especies son moi similares en estrutura, .