Ocular albinism (OA1) is caused by a genetic defect on chromosome 11 of the GPR143 gene. Oculocutaneous albinism type 2 (OCA2 or P gene albinism) results from a genetic defect on chromosome 15 in the P protein that helps the tyrosinase enzyme to function. Oculocutaneous albinism type 3 (OCA3) is rarely described and results from a genetic defect on chromosome 9 in TYRP1, a protein related to tyrosinase. Oculocutaneous albinism type 4 (OCA4) results from a genetic defect in chromosome 5 at position 13.3, in the SLC45A2 protein that helps the tyrosinase enzyme to function.
Albinism is a mutation in the TYR gene, responsible for the enzyme tyrosinase. Tyrosinase, in turn, is necessary for the production of melanin, or dark pigmentation.See the related link for further information.
One would define albinism as either a complete or partial absence of skin, hair, and eye pigment. This is due to the deficiency of an enzyme called tyrosinase, which is involved in the production of melanin.
that is lack of pigmentation on the skin (melanin). for more information visit the related links box below for the wikipedia article on albinism
tyrosinase
albinism is common.
6-7 i believe
What are the demographics of albinism:
Ocular Albinism is a type of albinism that affects mostly vision. It commonly comes with the lack of melanin in the skin that occurs in regular albinism.
I looked it up at Answers.com (http://www.answers.com/tyrosinase?cat=health) Appears that TYROSINASE is contained in some fruits and vegetables (like apples, or potatoes; the entry in Answers.com also explains that this enzyme is responsible for the dark colour produced when cut raw food is exposed to air.
Saul Soloway has written: 'On the mechanism of the reaction involved in the aerobic oxidation of catechol when catalyzed by the enzyme, tyrosinase ..' -- subject(s): Oxidation, Catechol, Tyrosinase
Wei-jen Shyu has written: 'Genetic recombination and an anomalous tyrosinase inheritance in Streptomyces scabies' -- subject(s): Tyrosinase, Streptomyces scabies