Amino acid sequence of NADH-cytochrome b5 reductase of human erythrocytes
- PMID: 6389526
- DOI: 10.1093/oxfordjournals.jbchem.a134871
Amino acid sequence of NADH-cytochrome b5 reductase of human erythrocytes
Abstract
The amino acid sequence of soluble NADH-cytochrome b5 reductase purified from normal human erythrocytes was determined as one approach to understand the hereditary disease of a deficiency of this enzyme. The protein is hydrophilic as a whole, but two regions, from Phe-36 to Ile-71 and from Met-231 to Phe-275, were found to be highly hydrophobic. The sequence of the latter region is particularly unique, and rich in proline (20%). The sequence of the amino-terminal region was very similar to the partial sequences of the corresponding regions of the enzymes from pig and steer liver microsomes.
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