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Levels of tyrosinase and its mRNA in coat-color mutants of C57Bl/10J congenic mice: Effects of genic substitution at the agouti, brown, albino, dilute, and pink-eyed dilution loci by Hidetoshi B. Tamate; Tomohisa Hirobe; Kazumasa Wakamatsu; Shosuke Ito; Shigeki Shibahara; Kiichi Ishikawa is a Environmental Science article available to read on EtoBox.

What is Levels of tyrosinase and its mRNA in coat-color mutants of C57Bl/10J congenic mice: Effects of genic substitution at the agouti, brown, albino, dilute, and pink-eyed dilution loci about?

The levels of tyrosinase activities, tyrosinase cross-reacting material (TY-CRM), and tyrosinase mRNA were determined for skins from five congenic strains of mice (Mus musculus) with different coat colors. The dopa oxidase activity and melanin formation activity were directly proportional to the abundance of TY-CRM in all of the mutants. The levels of the enzyme activities and TY-CRM were increased in brown (bib) and dilute (did) mice, while they were reduced in agouti (A/A) and pink-eyed dilution (p/p) animals. In albino ( c k ) mice, the tyrosinase activities and melanin formation activity were scarcely detectable, and no TY-CRM was observed. Contrary to these, the levels of tyrosinase mRNA in agouti and albino mutants were almost the same as that in black mice, and those in brown and dilution mutants were 2 0 3 0 % higher than that in black mice. These results indicate that the mutations at the brown and dilute loci exert their influence on the tyrosinase mRNA level, presumably by affecting the transcription of the tyrosinase gene, and that the mutations at the agouti and albino loci exert their influence on the TY -CRM level by regulating translation of tyrosinase mRNA and/or p

Who reads Levels of tyrosinase and its mRNA in coat-color mutants of C57Bl/10J congenic mice: Effects of genic substitution at the agouti, brown, albino, dilute, and pink-eyed dilution loci?

It is typically read by researchers, students, and practitioners in Environmental Science.

Author
Hidetoshi B. Tamate; Tomohisa Hirobe; Kazumasa Wakamatsu; Shosuke Ito; Shigeki Shibahara; Kiichi Ishikawa
Publisher
John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0022-104X)
Published
1989
Language
EN
Field
Environmental Science (Life Sciences)