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GOX exists as a homodimer, with each subunit binding one FAD molecule. Crystal structures show that FAD binds in a deep pocket of the enzyme near the dimer interface. Studies showed that upon replacement of FAD with 8-hydroxy-5-carba-5-deaza FAD, the stereochemistry of the reaction was determined by reacting with the re face of the flavin ...
The interface between the two monomers of a single dimer of an ACAD contains the FAD binding sites and has extensive bonding interactions. In contrast, the interface between the two dimers has fewer interactions. There are a total of 4 active sites within the tetramer, each of which contains a single FAD molecule and an acyl-CoA substrate ...
About 5-10% of flavoproteins have a covalently linked FAD. [2] Based on the available structural data, FAD-binding sites can be divided into more than 200 different types. [3] 90 flavoproteins are encoded in the human genome; about 84% require FAD and around 16% require FMN, whereas 5 proteins require both. [4]
Dehydrogenases typically fully reduce FAD to FADH 2. The production of FADH is rare. The double-bonded nitrogen atoms in FAD make it a good acceptor in taking two hydrogen atoms from a substrate. Because it takes two atoms rather than one, FAD is often involved when a double bond is formed in the newly oxidized substrate. [12]
319945 Ensembl ENSG00000160688 ENSMUSG00000042642 UniProt Q8NFF5 Q8R123 RefSeq (mRNA) NM_001184891 NM_001184892 NM_025207 NM_201398 NM_177041 RefSeq (protein) NP_001171820 NP_001171821 NP_079483 NP_958800 NP_796015 NP_001349304 NP_001349305 Location (UCSC) Chr 1: 154.98 – 154.99 Mb Chr 3: 89.4 – 89.41 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Flavin adenine dinucleotide ...
During one cycle of beta oxidation, Acyl-CoA creates one molecule of Acetyl-CoA, FADH2, and NADH. [7] Acetyl-CoA is then used in the citric acid cycle while FADH2 and NADH are sent to the electron transport chain. [8] These intermediates all end up providing energy for the body as they are ultimately converted to ATP. [8]
Adrenodoxin reductase is a flavoprotein as it carries a FAD type coenzyme. The enzyme functions as the first electron transfer protein of mitochondrial P450 systems such as P450scc. [6] The FAD coenzyme receives two electrons from NADPH and transfers them one at a time to the electron transfer protein adrenodoxin. [13]
The SDHA protein encoded by this gene is 664 amino acids long and weighs 72.7 kDA. [7] [8] SDHA protein has four subdomains, including capping domain, helical domain, C-terminal domain and most notably, β-barrel FAD-binding domain at N-terminus. Therefore, SDHA is a flavoprotein (Fp) due to the prosthetic group flavin adenine dinucleotide (FAD).