Molecular cloning and sequence analysis of 3-hydroxy-3-methylglutaryl-coenzyme A reductase from the human parasite Schistosoma mansoni.
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.
Rajkovic
A
A
Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH 44106.
Simonsen
J N
JN
Davis
R E
RE
Rottman
F M
FM
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics / Q000302:isolation & purification; D005796:Genes; D006801:Humans; D006903:Hydroxymethylglutaryl CoA Reductases / Q000235:genetics*; D008969:Molecular Sequence Data; D011487:Protein Conformation; D015183:Restriction Mapping; D012550:Schistosoma mansoni / Q000201:enzymology / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid
D004247:DNA; D006903:Hydroxymethylglutaryl CoA Reductases