General Information of Protein (ID: PRT00733)
Name Monolysocardiolipin acyltransferase (HADHA)
Synonyms   Click to Show/Hide Synonyms of This Protein
78 kDa gastrin-binding protein; Trifunctional enzyme subunit alpha, mitochondrial; TP-alpha; HADHA; HADH
Gene Name HADHA Gene ID
3030
UniProt ID
P40939
Family Transferases (EC 2)
EC Number   EC: 2.3.1.-  (Click to Show/Hide the Complete EC Tree)
Transferase
Acyltransferase
Acyltransferase
EC: 2.3.1.-
  Click to Show/Hide the Molecular/Functional Data (Sequence/Structure/Function) of This Protein
Sequence
MVACRAIGILSRFSAFRILRSRGYICRNFTGSSALLTRTHINYGVKGDVAVVRINSPNSK
VNTLSKELHSEFSEVMNEIWASDQIRSAVLISSKPGCFIAGADINMLAACKTLQEVTQLS
QEAQRIVEKLEKSTKPIVAAINGSCLGGGLEVAISCQYRIATKDRKTVLGTPEVLLGALP
GAGGTQRLPKMVGVPAALDMMLTGRSIRADRAKKMGLVDQLVEPLGPGLKPPEERTIEYL
EEVAITFAKGLADKKISPKRDKGLVEKLTAYAMTIPFVRQQVYKKVEEKVRKQTKGLYPA
PLKIIDVVKTGIEQGSDAGYLCESQKFGELVMTKESKALMGLYHGQVLCKKNKFGAPQKD
VKHLAILGAGLMGAGIAQVSVDKGLKTILKDATLTALDRGQQQVFKGLNDKVKKKALTSF
ERDSIFSNLTGQLDYQGFEKADMVIEAVFEDLSLKHRVLKEVEAVIPDHCIFASNTSALP
ISEIAAVSKRPEKVIGMHYFSPVDKMQLLEIITTEKTSKDTSASAVAVGLKQGKVIIVVK
DGPGFYTTRCLAPMMSEVIRILQEGVDPKKLDSLTTSFGFPVGAATLVDEVGVDVAKHVA
EDLGKVFGERFGGGNPELLTQMVSKGFLGRKSGKGFYIYQEGVKRKDLNSDMDSILASLK
LPPKSEVSSDEDIQFRLVTRFVNEAVMCLQEGILATPAEGDIGAVFGLGFPPCLGGPFRF
VDLYGAQKIVDRLKKYEAAYGKQFTPCQLLADHANSPNKKFYQ
Structure
5ZQZ ; 5ZRV ; 6DV2
Function Mitochondrial trifunctional enzyme catalyzes the last three of the four reactions of the mitochondrial beta-oxidation pathway. The mitochondrial beta-oxidation pathway is the major energy-producing process in tissues and is performed through four consecutive reactions breaking down fatty acids into acetyl-CoA. Among the enzymes involved in this pathway, the trifunctional enzyme exhibits specificity for long-chain fatty acids. Mitochondrial trifunctional enzyme is a heterotetrameric complex composed of two proteins, the trifunctional enzyme subunit alpha/HADHA described here carries the 2,3-enoyl-CoA hydratase and the 3-hydroxyacyl-CoA dehydrogenase activities while the trifunctional enzyme subunit beta/HADHB bears the 3-ketoacyl-CoA thiolase activity. Independently of the subunit beta, the trifunctional enzyme subunit alpha/HADHA also has a monolysocardiolipin acyltransferase activity. It acylates monolysocardiolipin into cardiolipin, a major mitochondrial membrane phospholipid which plays a key role in apoptosis and supports mitochondrial respiratory chain complexes in the generation of ATP. Allows the acylation of monolysocardiolipin with different acyl-CoA substrates including oleoyl-CoA for which it displays the highest activity.
Regulatory Network
Full List of Metabolite(s) Regulating This Protein
      Organic acids and derivatives
            Leucine Click to Show/Hide the Full List of Regulating Pair(s):   1 Pair(s)
               Detailed Information Metabo  Info click to show the details of this metabolite
               Regulating Pair Experim Info click to show the details of experiment for validating this pair [1]
                      Introduced Variation Leucine addition (5 hours)
                      Induced Change HADHA protein expression levels: decrease
                      Summary Introduced Variation         Induced Change 
                      Disease Status Healthy individual
                      Details It is reported that leucine addition causes the decrease of HADHA protein expression compared with control group.
References
1 An enteral leucine supply modulates human duodenal mucosal proteome and decreases the expression of enzymes involved in fatty acid beta-oxidation. J Proteomics. 2013 Jan 14;78:535-44.

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