Table 4.
Protein | Biological process | Molecular function | Related pathways | General comment | Component | Alias |
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COX5B_RAT | Hydrogen ion transmembrane transport Respiratory gaseous exchange |
Cytochrome c oxidase activity protein binding metal ion binding |
Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. Metabolism Oxidative phosphorylation Gene expression Alzheimer's disease Respiratory electron transport TP53 regulates metabolic genes |
Cytochrome c oxidase (COX) is the terminal enzyme of the mitochondrial respiratory chain. It is a multisubunit enzyme complex that couples the transfer of electrons from cytochrome c to molecular oxygen and contributes to a proton electrochemical gradient across the inner mitochondrial membrane. The complex consists of 13 mitochondrial- and nuclear-encoded subunits. The mitochondrially encoded subunits perform the electron transfer and proton pumping activities. The functions of the nuclear-encoded subunits are unknown but they may play a role in the regulation and assembly of the complex. This gene encodes the nuclear-encoded subunit Vb of the human mitochondrial respiratory chain enzyme. This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. | Mitochondrion, mitochondrial envelope, mitochondrial inner membrane, extracellular exosome | Cytochrome c oxidase polypeptide VB, mitochondrial Cytochrome c oxidase Polypeptide Vb Cytochrome c oxidase Subunit Vb COXVB |
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MUP | Transport/transporter activity | Small molecule binding | Major urinary proteins (Mups) bind and release pheromones. They may also protect pheromones from oxidation. In this context, they play a role in the regulation of social behaviours, such as aggression, mating, pup-suckling, territory establishment, and dominance. Acts as a kairomone, detected by the prey vomeronasal organ and inducing fear reactions in mice. | Extracellular region | ||
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Myh6 | ATP metabolic process | ATP binding microfilament motor activity actin binding protein binding |
Cell adhesion, integrin-mediated cell adhesion, and migration Cytoskeleton remodeling regulation of actin cytoskeleton by Rho GTPases |
Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located ~4 kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. MYH6 (Myosin, Heavy Chain 6, Cardiac Muscle, Alpha) is a Protein coding gene. Diseases associated with MYH6 include myh6-related dilated cardiomyopathy and myh6-related familial hypertrophic cardiomyopathy. Among its related pathways are RhoGDI Pathway and PAK Pathway. GO annotations related to this gene include protein kinase binding and ATPase activity. An important paralog of this gene is MYH4. | Cytoplasm and myosin complex | Myosin, Heavy Chain 6, Cardiac Muscle, Alpha Myosin, Heavy Polypeptide 6, Cardiac Muscle, Alpha (cardiomyopathy, Hypertrophic 1) Myosin Heavy Chain, Cardiac Muscle Alpha Isoform Myosin Heavy Chain 6 MyHC-Alpha |
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Myh7 | ATP metabolic process | ATP binding microfilament motor activity actin binding protein binding |
Muscle myosin is a hexameric protein containing 2 heavy chain subunits, 2 alkali light chain subunits, and 2 regulatory light chain subunits. This gene encodes the beta (or slow) heavy chain subunit of cardiac myosin. It is expressed predominantly in normal human ventricle. It is also expressed in skeletal muscle tissues rich in slow-twitch type I muscle fibers. Changes in the relative abundance of this protein and the alpha (or fast) heavy subunit of cardiac myosin correlate with the contractile velocity of cardiac muscle. Its expression is also altered during thyroid hormone depletion and hemodynamic overloading. Mutations in this gene are associated with familial hypertrophic cardiomyopathy, myosin storage myopathy, dilated cardiomyopathy, and Laing early-onset distal myopathy. | Cytoplasm and myosin complex | Myosin, Heavy Chain 7, Cardiac Muscle, Beta Myosin, Heavy Polypeptide 7, Cardiac Muscle, Beta Myosin Heavy Chain Slow Isoform MYHCB |