L-TYROSINE3,5-3H ASSAY FOR TYROSINASE DEVELOPMENT IN SKIN OF NEWBORN HAMSTERS

被引:105
作者
POMERANTZ, SH
机构
[1] Department of Biological Chemistry, University of Maryland, School of Medicine, Baltimore
关键词
D O I
10.1126/science.164.3881.838
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Tyrosinase in hamster skin, measured by the production of 3HOH from L-tyrosine-3,5-3H, increases about sevenfold in specific activity from the 14-day fetus to day 6 of life. Albino hamsters exhibit no activity, but enzyme is present in the ventral (white) areas of the Syrian hamster. 3,4-Dihydroxy-L-phenylalanine is required as a cosubstrate.
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页码:838 / +
页数:1
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