Ki-67 (antigen KI-67) has a gene size of 29,545 bp and it consists of 15 exons and 14 introns. It has a minus strand orientation. This gene is located on human chromosome 10q26.2.
This gene encodes a nuclear protein that is associated with and may be necessary for cellular proliferation. Alternatively spliced transcript variants have been described. A related pseudogene exists on chromosome X. (provided by RefSeq)
Immunogen
MKI67 (NP_002408, 3157 a.a. ~ 3256 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.
Monoclonal Anti-MKI67 antibody has been used in immunohistochemistry (IHC).
Biochem/physiol Actions
Ki-67 (antigen KI-67) protein acts as a cellular marker for proliferation. This protein plays a major role in the maintenance and regulation of the cell division cycle. Ki-67, a part of the mitotic chromosome periphery, function as a biological surfactant to maintain individual mitotic chromosomes dispersed in the cytoplasm after nuclear envelope disassembly.
Physical form
Solution in phosphate buffered saline, pH 7.4
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The Journal of cell biology, 123(3), 513-522 (1993-11-01)
The antigen defined by mAb Ki-67 is a human nuclear protein the expression of which is strictly associated with cell proliferation and which is widely used in routine pathology as a "proliferation marker" to measure the growth fraction of cells
Ki-67 acts as a biological surfactant to disperse mitotic chromosomes.
We investigated the expression of FOXC2, PinX1, Ki-67 and Cyclin D1 in cutaneous cell carcinoma. We collected 30 cutaneous squamous cell carcinoma (SCC), 30 cutaneous basal cell carcinoma (BCC) and 30 normal skin tissues. The protein expression and gene expression
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