5MGB

Crystal Structure of Rat Peroxisomal Multifunctional enzyme Type-1 (RPMFE1) Complexed with Acetoacetyl-CoA and NAD

Replaces:  5AAK

Summary for 5MGB

• Entry DOI: 10.2210/pdb5mgb/pdb
• Descriptor: Peroxisomal bifunctional enzyme, SULFATE ION, ACETOACETYL-COENZYME A, ... (6 entities in total)
• Functional Keywords: oxidoreductase, acetoacetyl-coa, nad+, mfe1, beta-oxidation, fatty acid, crotonase, 3-hydroxyacyl-coa-dehydrogenase
• Biological source: Rattus norvegicus (Rat)
• Cellular location: Peroxisome: P07896
• Total number of polymer chains: 2
• Total formula weight: 165461.21

Authors

Kasaragod, P.,Kiema, T.-R.,Schmitz, W.,Hiltunen, J.K.,Wierenga, R.K. (deposition date: 2016-11-21, release date: 2016-12-21, Last modification date: 2024-01-17)

Primary citation

Kasaragod, P.,Midekessa, G.B.,Sridhar, S.,Schmitz, W.,Kiema, T.R.,Hiltunen, J.K.,Wierenga, R.K.
Structural enzymology comparisons of multifunctional enzyme, type-1 (MFE1): the flexibility of its dehydrogenase part.
FEBS Open Bio, 7:1830-1842, 2017

PubMed Abstract: Multifunctional enzyme, type-1 (MFE1) is a monomeric enzyme with a 2E-enoyl-CoA hydratase and a 3S-hydroxyacyl-CoA dehydrogenase (HAD) active site. Enzyme kinetic data of rat peroxisomal MFE1 show that the catalytic efficiencies for converting the short-chain substrate 2E-butenoyl-CoA into acetoacetyl-CoA are much lower when compared with those of the homologous monofunctional enzymes. The mode of binding of acetoacetyl-CoA (to the hydratase active site) and the very similar mode of binding of NAD and NADH (to the HAD part) are described and compared with those of their monofunctional counterparts. Structural comparisons suggest that the conformational flexibility of the HAD and hydratase parts of MFE1 are correlated. The possible importance of the conformational flexibility of MFE1 for its biocatalytic properties is discussed.

PubMed: 29226071
DOI: 10.1002/2211-5463.12337

Experimental method

X-RAY DIFFRACTION (2.8 Å)