Initiation codon mutation of the tyrosinase gene as a cause of human albinism

Autor: Lars H. Breimer, Marcelle Jay, Barrie Jay, Anthony F. Winder
Rok vydání: 1994
Předmět:
Zdroj: Clinica Chimica Acta. 227:17-22
ISSN: 0009-8981
DOI: 10.1016/0009-8981(94)90131-7
Popis: Direct DNA sequence determination of PCR amplified exons of the tyrosinase gene of three British patients suffering from tyrosinase negative oculocutaneous albinism has revealed three new missense point mutations: (1) an adenine to guanine transition at codon 1 changes the initiating methionine codon into a valine codon thereby abolishing translation; (2) a thymine to cytosine transition at codon 370 changes a methionine to a threonine residue; (3) a cytosine to thymine transition at codon 367 changes a histidine to a tyrosine residue. A codon 402 change previously considered a polymorphism is assigned a pathological role.
Databáze: OpenAIRE