Molecular basis of tyrosinase-negative oculocutaneous albinism. A single base mutation in the tyrosinase gene causing arginine to glutamine substitution at position 59.

Abstract excerpt

Tyrosinase-negative oculocutaneous albinism (OCA) is one of classical inborn errors of metabolism, characterized by a complete lack of melanin pigments in the eyes and skin. We have isolated and characterized the tyrosinase gene of one child (F. S.) affected with tyrosinase-negative OCA. Sequence analysis reveals a single-base mutation in the exon 1 (a G to A transition at nucleotide residue 312), causing the Arg...

Topics

• Albinism, Oculocutaneous
• Arginine
• Base Sequence
• Exons
• Female
• Genes
• Genotype
• Glutamine
• Humans
• Introns
• Male
• Molecular Sequence Data