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2ejm, 20 NMR models ()
Gene: MCCC1, MCCA (Homo sapiens)
Activity: Methylcrotonoyl-CoA carboxylase, with EC number
Resources: FirstGlance, OCA, RCSB, PDBsum, TOPSAN
Coordinates: save as pdb, mmCIF, xml


Solution structure of RUH-072, an apo-biotnyl domain form human acetyl coenzyme A carboxylase


[MCCA_HUMAN] Defects in MCCC1 are the cause of methylcrotonoyl-CoA carboxylase 1 deficiency (MCC1D) [MIM:210200]. An autosomal recessive disorder of leucine catabolism. The phenotype is variable, ranging from neonatal onset with severe neurological involvement to asymptomatic adults. There is a characteristic organic aciduria with massive excretion of 3-hydroxyisovaleric acid and 3-methylcrotonylglycine, usually in combination with a severe secondary carnitine deficiency.[1][2][3][4]

About this Structure

2ejm is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.


  1. Gallardo ME, Desviat LR, Rodriguez JM, Esparza-Gordillo J, Perez-Cerda C, Perez B, Rodriguez-Pombo P, Criado O, Sanz R, Morton DH, Gibson KM, Le TP, Ribes A, de Cordoba SR, Ugarte M, Penalva MA. The molecular basis of 3-methylcrotonylglycinuria, a disorder of leucine catabolism. Am J Hum Genet. 2001 Feb;68(2):334-46. Epub 2001 Jan 17. PMID:11170888 doi:S0002-9297(07)64086-5
  2. Holzinger A, Roschinger W, Lagler F, Mayerhofer PU, Lichtner P, Kattenfeld T, Thuy LP, Nyhan WL, Koch HG, Muntau AC, Roscher AA. Cloning of the human MCCA and MCCB genes and mutations therein reveal the molecular cause of 3-methylcrotonyl-CoA: carboxylase deficiency. Hum Mol Genet. 2001 Jun 1;10(12):1299-306. PMID:11406611
  3. 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. PMID:11181649 doi:10.1172/JCI11948
  4. Cho SY, Park HD, Lee YW, Ki CS, Lee SY, Sohn YB, Park SW, Kim SH, Ji S, Kim SJ, Choi EW, Kim CH, Ko AR, Paik KH, Lee DH, Jin DK. Mutational spectrum in eight Korean patients with 3-methylcrotonyl-CoA carboxylase deficiency. Clin Genet. 2012 Jan;81(1):96-8. doi: 10.1111/j.1399-0004.2011.01704.x. PMID:22150417 doi:10.1111/j.1399-0004.2011.01704.x

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