Cytochrome c oxidase subunit 6C is an enzyme that in humans is encoded by the COX6Cgene.
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.
^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.
Lenka N, Vijayasarathy C, Mullick J, Avadhani NG (1998). "Structural organization and transcription regulation of nuclear genes encoding the mammalian cytochrome c oxidase complex". Prog. Nucleic Acid Res. Mol. Biol. 61: 309–44. doi:10.1016/S0079-6603(08)60830-2. PMID9752724.
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.
Kish SJ, Mastrogiacomo F, Guttman M, et al. (1999). "Decreased brain protein levels of cytochrome oxidase subunits in Alzheimer's disease and in hereditary spinocerebellar ataxia disorders: a nonspecific change?". J. Neurochem. 72 (2): 700–7. doi:10.1046/j.1471-4159.1999.0720700.x. PMID9930743.
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.