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Cytochrome c is a highly conserved protein across the spectrum of eukaryotic species, found in plants, animals, fungi, and many unicellular organisms. This, along with its small size (molecular weight about 12,000 daltons), [7] makes it useful in studies of cladistics. [8] Cytochrome c has been studied for the glimpse it gives into evolutionary ...
Small soluble cytochrome c proteins with a molecular weight of 8-12 kDa and a single heme group belong to class I. [10] [11] It includes the low-spin soluble cytC of mitochondria and bacteria, with the heme-attachment site located towards the N-terminus, and the sixth ligand provided by a methionine residue about 40 residues further on towards the C-terminus.
The alternative oxidase is an integral monotopic membrane protein that is tightly bound to the inner mitochondrial membrane from matrix side [18] The enzyme has been predicted to contain a coupled diiron center on the basis of a conserved sequence motif consisting of the proposed iron ligands, four glutamate and two histidine amino acid residues. [19]
Complex III itself is composed of several subunits, one of which is a b-type cytochrome while another one is a c-type cytochrome. Both domains are involved in electron transfer within the complex. Complex IV contains a cytochrome a/a3-domain that transfers electrons and catalyzes the reaction of oxygen to water.
Q-cytochrome c oxidoreductase is also known as cytochrome c reductase, cytochrome bc 1 complex, or simply complex III. [35] [36] In mammals, this enzyme is a dimer, with each subunit complex containing 11 protein subunits, an [2Fe-2S] iron–sulfur cluster and three cytochromes: one cytochrome c 1 and two b cytochromes. [37]
Cytochrome c oxidase subunit 7A-related protein, mitochondrial is an enzyme that in humans is encoded by the COX7A2L gene. [ 5 ] [ 6 ] Cytochrome c oxidase (COX), the terminal component of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen.
4 cytochrome c +2 + 4 H + + O 2 4 cytochrome c +3 + 2 H 2 O. This reaction is coupled to the pumping of four additional protons across the mitochondrial or bacterial membrane. [12] [13] Cytochrome c oxidase is an oligomeric enzymatic complex that is located in the mitochondrial inner membrane of eukaryotes and in the plasma membrane of aerobic ...
52892 Ensembl ENSG00000133028 ENSMUSG00000069844 UniProt O75880 Q5SUC9 RefSeq (mRNA) NM_004589 NM_001040026 RefSeq (protein) NP_004580 NP_001035115 Location (UCSC) Chr 17: 10.67 – 10.7 Mb Chr 11: 66.94 – 66.96 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Protein SCO1 homolog, mitochondrial, also known as SCO1, cytochrome c oxidase assembly protein, is a protein that in humans ...