Cytochrome c oxidase (COX), the terminal enzyme of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. It is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in electron transfer, and the nuclear-encoded subunits may be involved in the regulation and assembly of the complex. This nuclear gene encodes subunit VIc, which has 77% amino acid sequence identity with mouse COX subunit VIc. This gene is up-regulated in prostate cancer cells. A pseudogene COX6CP1 has been found on chromosomes 16p12.[5]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Hofmann S, Lichtner P, Schuffenhauer S, Gerbitz KD, Meitinger T (Mar 1999). "Assignment of the human genes coding for cytochrome c oxidase subunits Va (COX5A), VIc (COX6C) and VIIc (COX7C) to chromosome bands 15q25, 8q22→q23 and 5q14 and of three pseudogenes (COX5AP1, COX6CP1, COX7CP1) to 14q22, 16p12 and 13q14→q21 by FISH and radiation hybrid mapping". Cytogenet Cell Genet. 83 (3–4): 226–7. doi:10.1159/000015185. PMID10072584.
Sirchia R, Luparello C (2007). "Mid-region parathyroid hormone-related protein (PTHrP) and gene expression of MDA-MB231 breast cancer cells". Biol. Chem. 388 (5): 457–65. doi:10.1515/BC.2007.059. PMID17516841. S2CID2286919.
Wang FL, Wang Y, Wong WK, et al. (1996). "Two differentially expressed genes in normal human prostate tissue and in carcinoma". Cancer Res. 56 (16): 3634–7. PMID8705997.