Molecular cloning and sequence analysis of 3-hydroxy-3-methylglutaryl-coenzyme A reductase from the human parasite Schistosoma mansoni.
AUTOR(ES)
Rajkovic, A
RESUMO
cDNA clones encoding the 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase [(S)-mevalonate:NADP+ oxidoreductase (CoA-acylating), EC 1.1.1.34] from the human parasite Schistosoma mansoni have been isolated and characterized. The composite 3459 base pairs of cDNA sequence contains a 2844-base-pair open reading frame corresponding to a protein of 948 amino acids. The predicted S. mansoni HMG-CoA reductase protein contains a hydrophobic amino terminus consisting of seven potential transmembrane domains that are structurally conservative but are not identical in amino acid sequence with HMG-CoA reductases from other species. The hydrophilic carboxyl terminus of the S. mansoni HMG-CoA reductase protein, however, shares 48-52% sequence identity with the carboxyl termini of other HMG-CoA reductases in a region that contains the catalytic domain. When expressed as a fusion protein in Escherichia coli, the carboxyl-terminal domain of the schistosome protein exhibits HMG-CoA reductase enzyme activity.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=298251Documentos Relacionados
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