Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:1.9.3.1 (cytochrome oxidase)
 8,822 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Subunit VIIa of mammalian cytochrome c oxidase (COX; EC 1.9.3.1) exists in at least two isoforms, one present in all tissue types ('liver' isoform; COX VIIa-L) and the other specific for cardiac and skeletal muscle (COX VIIa-M). We have isolated a full-length cDNA encoding human COX VIIa-M. The deduced polypeptide represents the human ortholog of COX VIIa-M, as it shares 78% identity with bovine COX VIIa-M, but only 63% identity with human COX VIIa-L. Northern-blot analysis of primate tissues demonstrated that COXVIIa-M mRNA is present only in muscle tissues; in contrast, the COXVIIa-L mRNA is present in both muscle and nonmuscle tissues. Southern-blot hybridization of human-rodent cell hybrid genomic DNA indicates that the COXVIIa-M gene maps to a single locus on chromosome 19, designated COX7AM. In contrast, COXVIIa-L cDNA probes hybridized to fragments from two COX7AL loci, on chromosomes 4 and 14.
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PMID:Tissue-specific expression and chromosome assignment of genes specifying two isoforms of subunit VIIa of human cytochrome c oxidase. 132 65

The aim of this study was to identify potential markers of atherosclerosis development in familial hypercholesterolemia (FH) patients. GSE13985 microarray data, generated using blood samples from 5 FH patients and 5 matched controls, was downloaded from the Gene Expression Omnibus. Differentially expressed genes (DEGs) between FH and controls were identified and a protein-protein interaction (PPI) network was constructed. Module and hub proteins were screened in this network. The module genes were subjected to a gene ontology (GO) analysis, and a Kyoto Encyclopedia of Genes and Genomes enrichment analysis was also performed. A total of 394 genes, including 125 up- and 269 down-regulated genes, were differentially expressed. Ribosomal proteins L9 (RPL9), L35 (RPL35), and S7 (RPS7) were designated as hub nodes in the PPI network. The DEGs were found to be significantly enriched in ribosomal and oxidative phosphorylation pathways. Ribosomal protein genes were found to be involved in the ribosomal pathway. The cytochrome-c oxidase (COX) genes COX subunit VIIa polypeptide 2 (COX7A2), COX subunit VIIb (COX7B), COX subunit VIIc (COX7C), and COX subunit VIc (COX6C) were enriched in the oxidative phosphorylation pathway. Module analysis and GO enrichment analysis identified ribosomal proteins as important regulators of FH. Ribosomal and oxidative phosphorylation pathways may be closely associated with atherosclerosis development. Ribosomal protein genes and cytochrome-coxidase genes may be potential therapeutic targets for atherosclerosis.
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PMID:Prediction of genetic risk factors of atherosclerosis using various bioinformatic tools. 2717 80