Source:http://linkedlifedata.com/resource/umls/id/C0007709
MSH: The clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.,CSP: clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.,GO: OBSOLETE. The region of a eukaryotic chromosome that is attached to the spindle during nuclear division. It is defined genetically as the region of the chromosome that always segregates at the first division of meiosis; the region of the chromosome in which no crossing over occurs. At the start of M phase, each chromosome consists of two sister chromatids with a constriction at a point which forms the centromere. During late prophase two kinetochores assemble on each centromere, one kinetochore on each sister chromatid. [ISBN:0198506732],NCI: The nonstaining primary constriction of a chromosome which is the point of attachment of the spindle fiber; provides the mechanism of chromosome