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Pathway Description
3-Methylcrotonyl-CoA Carboxylase Deficiency Type I
Homo sapiens
Category:
Metabolite Pathway
Sub-Category:
Disease
Created: 2013-08-01
Last Updated: 2022-11-17
3-Methylcrotonyl-Coenzyme A Carboxylase Deficiency Type I also called 3-MCC Deficiency is a rare inborn error of metabolism (IEM) and is the result of defective pair of genes. More specifically defects in genes MCCC1 and MCCC2 cause 3-MCC Deficiency. 3-MCC has a very important role in protein metabolism in the body. In particular, the said enzyme is pivotal in one of the many steps which constitute the breakdown of leucine. Mutations in the aforementioned genes leads to a reduction in the activity of 3-MCC. As would naturally be expected, this causes the body to be unable to uptake and breakdown leucine properly. Consequently, this leads to the build up of toxic byproducts which are not processed as the breakdown of leucine is left incomplete. If these toxic byproducts manifest themselves in sufficiently high levels they can be very harmful, damaging the brain and nervous system. Symptoms include recurring episodes of vomiting and diarrhea, lethargy, hypotonia, seizures, and coma.
References
3-Methylcrotonyl-CoA Carboxylase Deficiency Type I References
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Pubmed: 15868465
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Pubmed: 15359379
Baumgartner MR, Almashanu S, Suormala T, Obie C, Cole RN, Packman S, Baumgartner ER, Valle D: The molecular basis of human 3-methylcrotonyl-CoA carboxylase deficiency. J Clin Invest. 2001 Feb;107(4):495-504. doi: 10.1172/JCI11948.
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Valine, Leucine, and Isoleucine Degradation References
Lehninger, A.L. Lehninger principles of biochemistry (4th ed.) (2005). New York: W.H Freeman.
Salway, J.G. Metabolism at a glance (3rd ed.) (2004). Alden, Mass.: Blackwell Pub.
Wanders RJ, Duran M, Loupatty FJ: Enzymology of the branched-chain amino acid oxidation disorders: the valine pathway. J Inherit Metab Dis. 2012 Jan;35(1):5-12. doi: 10.1007/s10545-010-9236-x. Epub 2010 Nov 23.
Pubmed: 21104317
Wang YP, Qi ML, Li TT, Zhao YJ: Two novel mutations in the BCKDHB gene (R170H, Q346R) cause the classic form of maple syrup urine disease (MSUD). Gene. 2012 Apr 25;498(1):112-5. doi: 10.1016/j.gene.2012.01.082. Epub 2012 Feb 3.
Pubmed: 22326532
Nobukuni Y, Mitsubuchi H, Endo F, Akaboshi I, Asaka J, Matsuda I: Maple syrup urine disease. Complete primary structure of the E1 beta subunit of human branched chain alpha-ketoacid dehydrogenase complex deduced from the nucleotide sequence and a gene analysis of patients with this disease. J Clin Invest. 1990 Jul;86(1):242-7. doi: 10.1172/JCI114690.
Pubmed: 2365818
Chuang JL, Cox RP, Chuang DT: Maple syrup urine disease: the E1beta gene of human branched-chain alpha-ketoacid dehydrogenase complex has 11 rather than 10 exons, and the 3' UTR in one of the two E1beta mRNAs arises from intronic sequences. Am J Hum Genet. 1996 Jun;58(6):1373-7.
Pubmed: 8651316
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McKean MC, Winkeler KA, Danner DJ: Nucleotide sequence of the 5' end including the initiation codon of cDNA for the E1 alpha subunit of the human branched chain alpha-ketoacid dehydrogenase complex. Biochim Biophys Acta. 1992 Nov 15;1171(1):109-12. doi: 10.1016/0167-4781(92)90149-t.
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Pubmed: 14702039
Feigenbaum AS, Robinson BH: The structure of the human dihydrolipoamide dehydrogenase gene (DLD) and its upstream elements. Genomics. 1993 Aug;17(2):376-81. doi: 10.1006/geno.1993.1335.
Pubmed: 8406489
Otulakowski G, Robinson BH: Isolation and sequence determination of cDNA clones for porcine and human lipoamide dehydrogenase. Homology to other disulfide oxidoreductases. J Biol Chem. 1987 Dec 25;262(36):17313-8.
Pubmed: 3693355
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Pubmed: 3278312
Wang SP, Robert MF, Gibson KM, Wanders RJ, Mitchell GA: 3-Hydroxy-3-methylglutaryl CoA lyase (HL): mouse and human HL gene (HMGCL) cloning and detection of large gene deletions in two unrelated HL-deficient patients. Genomics. 1996 Apr 1;33(1):99-104. doi: 10.1006/geno.1996.0164.
Pubmed: 8617516
Mitchell GA, Robert MF, Hruz PW, Wang S, Fontaine G, Behnke CE, Mende-Mueller LM, Schappert K, Lee C, Gibson KM, Miziorko HM, et al.: 3-Hydroxy-3-methylglutaryl coenzyme A lyase (HL). Cloning of human and chicken liver HL cDNAs and characterization of a mutation causing human HL deficiency. J Biol Chem. 1993 Feb 25;268(6):4376-81.
Pubmed: 8440722
Schuldiner O, Eden A, Ben-Yosef T, Yanuka O, Simchen G, Benvenisty N: ECA39, a conserved gene regulated by c-Myc in mice, is involved in G1/S cell cycle regulation in yeast. Proc Natl Acad Sci U S A. 1996 Jul 9;93(14):7143-8. doi: 10.1073/pnas.93.14.7143.
Pubmed: 8692959
Bechtel S, Rosenfelder H, Duda A, Schmidt CP, Ernst U, Wellenreuther R, Mehrle A, Schuster C, Bahr A, Blocker H, Heubner D, Hoerlein A, Michel G, Wedler H, Kohrer K, Ottenwalder B, Poustka A, Wiemann S, Schupp I: The full-ORF clone resource of the German cDNA Consortium. BMC Genomics. 2007 Oct 31;8:399. doi: 10.1186/1471-2164-8-399.
Pubmed: 17974005
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