Rescue of the albino phenotype by introducing a functional tyrosinase minigene into Kunming albino mice
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چکیده
منابع مشابه
Rescue of the albino phenotype by introducing a functional tyrosinase minigene into Kunming albino mice.
AIM To use the tyrosinase minigene as a visual marker to perform microinjection training and improve the techniques related with transgene to greatly elevate the efficiency of gene transfer. METHODS A mouse tyrosinase minigene, i.e., TyBS, in which the 2.25-kb authentic genomic 5' non-coding flanking sequence of mouse tyrosinase was fused to a mouse tyrosinase cDNA, was introduced into the fe...
متن کاملMelanization in albino mice transformed by introducing cloned mouse tyrosinase gene.
We introduced a mouse tyrosinase minigene, mg-Tyrs-J, in which the authentic genomic 5' non-coding flanking sequence was fused to a mouse tyrosinase cDNA, into fertilized egges of albino mice. Of the 25 animals that developed from the injected eggs, four mice exhibited pigmented hair and eyes. Histological analysis of the transgenic mice revealed that the melanogenesis was restricted to hair bu...
متن کاملPhenotypic rescue of the albino mutation in the medakafish (Oryzias latipes) by a mouse tyrosinase transgene
Mutations of the tyrosinase gene are one common cause of a similar phenotype in all vertebrates, known as albinism. In an attempt to contribute to an understanding of the genetic hierarchy governing the development of pigmentation, we have used a mouse tyrosinase minigene under the control of its 5.2 kb upstream promoter region to rescue two different albino mutations in the medakafish, Oryzias...
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Site-directed mutagenesis was used to determine the functional role of several residues of Streptomyces glaucescens tyrosinase. Replacement of His-37, -53, -193 or -215 by glutamine yields albino phenotypes, as determined by expression on melanin-indicator plates. The purified mutant proteins display no detectable oxy-enzyme and increased Cu lability at the binuclear active site. The carbonyl d...
متن کاملRetinal projections in tyrosinase-negative albino cats.
Retinal projections were examined in two tyrosinase-negative albino cats using autoradiographic techniques. Cats from this colony have pink eyes; their retinal pigment epithelium, ciliary body, and iris epithelium are completely devoid of melanin pigment. Test breeding for five generations indicates that these cats are true albinos (cc). The most striking feature of the albino cats' visual path...
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ژورنال
عنوان ژورنال: World Journal of Gastroenterology
سال: 2007
ISSN: 1007-9327
DOI: 10.3748/wjg.v13.i2.244