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A few cases of endometrial cancer displayed moderate to strong cytoplasmic positivity, often in a fraction of cells. A few melanomas, ovarian and thyroid cancers showed moderate positivity. Remaining cancer tissues were negative.
GENE INFORMATION
Gene name
COX7B
Synonyms
Description
Cytochrome c oxidase subunit VIIb (HGNC Symbol)
Entrez gene summary
Cytochrome c oxidase (COX), the terminal component of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. This component 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 function in the regulation and assembly of the complex. This nuclear gene encodes subunit VIIb, which is highly similar to bovine COX VIIb protein and is found in all tissues. This gene may have several pseudogenes on chromosomes 1, 2, 20 and 22. [provided by RefSeq, Jun 2011]