KI-67 Antibodies

Target Information

Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly. Associates with the surface of the mitotic chromosome, the perichromosomal layer, and covers a substantial fraction of the chromosome surface. Prevents chromosomes from collapsing into a single chromatin mass by forming a steric and electrostatic charge barrier: the protein has a high net electrical charge and acts as a surfactant, dispersing chromosomes and enabling independent chromosome motility. Binds DNA, with a preference for supercoiled DNA and AT-rich DNA. Does not contribute to the internal structure of mitotic chromosomes. May play a role in chromatin organization. It is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in maintaining mitotic chromosomes dispersed. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.

Alternate Names

antigen identified by monoclonal antibody Ki-67; Antigen KI-67; Antigen Ki67; KI-67; KI67; KIA; marker of proliferation Ki-67; MIB-; MIB-1; MKI67; PPP1R105; Proliferation marker protein Ki-67; proliferation-related Ki-67 antigen; protein phosphatase 1, regulatory subunit 105