http://ghr.nlm.nih.gov/gene/TYR TYR gene TYR gene "TYR" "TYR" http://ghr.nlm.nih.gov/gene/TYR tyrosinase TYR gene TYR gene "TYR" http://ghr.nlm.nih.gov/gene/TYR "TYR" http://ghr.nlm.nih.gov/gene/TYR http://ghr.nlm.nih.gov/gene/TYR