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Positive controls: 293 cell lysates, human liver tissue, human liver carcinoma tissue, human kidney tissue, human small intestine tissue, HepG2.
The cytochrome c oxidase (COX) family of proteins function as the final electron donor in the respiratory chain to drive a proton gradient across the inner mitochondrial membrane, ultimately resulting in the production of water. The mammalian COX apoenzyme is a dimer, with each monomer consisting of 13 subunits, some of which are mitochondrial and some of which are nuclear. Found in the inner mitochondrial membrane, COX5 is the heme A-containing chain of the oxidase family that converts one molecule of oxygen and four molecules of hydrogen to two molecules of water. Two isoforms of COX5 exist, COX5a and COX5b. When oxygen levels within the cell are high, transcription of COX5a (the aerobic isoform) is up-regulated as the rate of cellular respiration increases. Conversely, when oxygen levels are low, COX5b (the hypoxic isoform) transcription increases and functions to maximize the turnover rate of the COX apoenzyme.
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蛋白别名: Cytochrome c oxidase polypeptide Vb; cytochrome c oxidase polypeptide VB, mitochondrial; Cytochrome c oxidase subunit 5B, mitochondrial; cytochrome c oxidase subunit Vb
基因别名: COX5B; COXVB
UniProt ID: (Human) P10606
Entrez Gene ID: (Human) 1329