NCIt definition : Structural maintenance of chromosomes protein 3 (1217 aa, 142 kDa) is encoded by
the human SMC3 gene. This protein plays a role in chromosome cohesion and may be expressed
as an extracellular glycoprotein that plays a role in cell-matrix adhesion.;
NCIt note : Chondroitin Sulfate Proteoglycan 6 (CSPG6), encoded by the CSPG6 gene, is an abundant
secreted chondroitin sulfate proteoglycan in basement membranes and an intracellular
protein. CSPG6 is involved in chromosome cohesion during cell cycle and in DNA repair
as a central component of the cohesin complex, which is required for the cohesion
of sister chromatids after DNA replication. The cohesin complex apparently forms a
large proteinaceous ring within which sister chromatids can be trapped. At anaphase,
the complex is cleaved and dissociates from chromatin, allowing sister chromatids
to segregate. The cohesin complex may also play a role in spindle pole assembly during
mitosis and in chromosome movement. (from LocusLink);