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Partial amino acid sequences of two mitochondrial and two microsomal cytochrome P-450's from adrenal cortex.

作者信息

Ogishima T, Okada Y, Kominami S, Takemori S, Omura T

出版信息

J Biochem. 1983 Nov;94(5):1711-4.

PMID:6654880
Abstract

Partial amino acid sequences of two mitochondrial cytochrome P-450's, P-450 (SCC) and P-450 (11 beta), and two microsomal cytochrome P-450's, P-450 (C-21), and P-450 (17 alpha, Lyase), from adrenal cortex were analyzed and compared. Mitochondrial P-450's and microsomal P-450's were different in the amino acid sequences at their NH2-terminals. The sequences of microsomal P-450's started from terminal methionine and were highly hydrophobic, whereas those of mitochondrial P-450's lacked NH2-terminal methionine and were not hydrophobic. These findings strongly suggest that the NH2-terminal portions of newly synthesized P-450's determine their intracellular localization to different cell organelles.

摘要

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