Ornithine décarboxylase Notes et références | Menu de navigation1D7K4.1.1.179024-60-6Entrée IUBMBVue IntEnzEntrée BRENDAEntrée KEGGVoie métaboliqueProfilStructuresAmiGOEGOlire en ligne10623504

BactériologieEC 4.1.1


ECenzymelyasescarboxyleacide aminéornithineputrescineanaérobiosepHbactériologiemilieu de Moeller






Ornithine décarboxylase



Description de cette image, également commentée ci-après

Structure d'une ornithine décarboxylase humaine cristallisée (PDB 1D7K[1])








N° EC
EC 4.1.1.17
N° CAS
9024-60-6
Cofacteur(s)
PLP

















Activité enzymatique
IUBMBEntrée IUBMB
IntEnzVue IntEnz
BRENDAEntrée BRENDA
KEGGEntrée KEGG
MetaCycVoie métabolique
PRIAMProfil
PDBStructures
GO
AmiGO / EGO

L'ornithine décarboxylase (ODC) (EC 4.1.1. 17) est une enzyme de la famille des lyases libérant le groupement carboxyle de l'acide aminé ornithine selon la réaction :


Odc.png

Il y a production de putrescine (1,4-diaminobutane), une diamine primaire qui alcalinise le milieu. L'ornithine décarboxylase est une enzyme induite par l'anaérobiose et un pH acide.


En bactériologie, cette enzyme est recherchée grâce au milieu de Moeller à l'ornithine.



Notes et références |




  1. ↑
    (en) J.J. Almrud, M.A. Oliveira, A.D. Kern, N.V. Grishin, M.A. Phillips et M.L. Hackert, « Crystal structure of human ornithine decarboxylase at 2.1 A resolution: structural insights to antizyme binding », Journal of Molecular Biology, vol. 295, no 1,‎ 7 janvier 2000, p. 7-16 (lire en ligne) PMID 10623504



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