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Some properties of cytochrome b5 from liver microsomes of man, monkey, pig and chicken.


ABSTRACT: 1. Cytochrome b(5) was released from liver microsomes of man, monkey, pig and chicken by incubation with a crude lipase preparation. 2. By using DEAE-cellulose chromatography, ammonium sulphate fractionation, Sephadex-gel filtration and a final gradient elution on DEAE-Sephadex A-50, cytochromes b(5) were obtained from the four species studied, all possessing similar spectral properties. 3. Stokes radii of the cytochromes were measured by gel filtration. 4. N-Terminal amino acids for the different cytochromes were serine for man and monkey, alanine for pig and glycine for chicken. 5. Amino acid analyses of the cytochromes are presented. 6. Peptide ;fingerprint' patterns of tryptic digests of the different cytochromes are discussed and clearly show increasing similarity for more closely related species.

SUBMITTER: Nobrega FG 

PROVIDER: S-EPMC1185215 | biostudies-other | 1969 Dec

REPOSITORIES: biostudies-other

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2023-04-24 | PXD040040 | Pride