Oct 15, 2025
The Scientific Research Notes Of S. Sunkavally (years: 2002-2011).
1615-1616.
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The Scientific Research Notes Of S. Sunkavally (years: 2002-2011).
1615-1616.
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The Scientific Research Notes Of S. Sunkavally (years: 2002-2011).
1613-1614.
TYR - Tyrosinase
Part 1 - Non-mammalian vertebrates
part 2
The enzyme encoded by this gene regulates several steps in the conversion of tyrosine to melanin. Mutations in this gene result in oculocutaneous albinism (OCA1).
Medaka fish
albino (three different mutations)
Inheritance: recessive.
image source
Axolotl
albino
Inheritance: recessive.
image source
Dark-spotted frog
albino (three different mutations)
Inheritance: recessive.
image source
Japanese wrinkled frog
albino
Inheritance: recessive.
image source
Rice frog
albino
Inheritance: recessive.
image source
Ball phyton
albino (several mutations, one found so far)
candy/toffee (same mutation)
Inheritance: recessive to the wild type, intermediate with each other
homozygotes (albino/albino, candy/candy=toffee/toffee), compound heterozygote (candy/albino=toffee/albino - candino=toffino)
Japanese rat snake
albino
Inheritance: recessive.
image source
Chicken
recessive white
albino
red-eyed white (mutation unknown)
Inheritance: recessive to the wild type, interaction unknown.
recessive white (c/c), albino (ca/ca); i couldn't find a red-eyed white
Fischer's lovebird
non-sex-linked lutino
Inheritance: recessive.
image source
Green-cheeked parakeet
non-sex-linked lutino
Inheritance: recessive.
image source
Canary
pearl
Inheritance: recessive.
image source
TYR - Tyrosinase
part 1
Part 2 - mammals
The enzyme encoded by this gene regulates several steps in the conversion of tyrosine to melanin. Mutations in this gene result in oculocutaneous albinism (OCA1).
Red-necked wallaby
albino
Inheritance: probably recessive.
image source
Mouse
intense chinchilla
chinchilla (two different mutations)
exteme dilution
extreme dilution mottled
ruby-eyed dilute
platinum
himalayan
acromelanic
albino mottling
albino (several different mutations)
Inheritance: all recessive to the wild type, intermediate on various degree between each other.
Due to the great number of alleles and the rarity of some of them, I only illustrate the four most common (those with a bold lettering).
first row: sepia (cch/cch), mock chocolate (cch/ce) - this one is a fox (tan instead of solid like the rest here, note the white belly), burmese (cch/ch), stone (cch/c), second row: beige (ce/ce), colorpoint beige (ce/ch), bone (ce/c), third row: siamese point (ch/ch), himalayan (ch/c), fourth row: albino (c/c). image sources
Rat
himalayan
albino
Inheritance: recessive to the wild type and intermediate with each other.
siamese (ch/ch), himalayan (ch/c), albino (c/c). image source
Syrian hamster
dark eared white
extreme dilution (mutation unknown yet)
Inheritance: recessive to the wild type and intermediate with each other.
dark eared white (cd/cd), compound heterozygote (cd/ce) and extreme dilute (ce/ce)
Mongolian gerbil
albino
Inheritance: recessive.
image source
Guinea pig
albino (probably the same as the himalayan allele)
Inheritence: recessive.
image source
Rabbit
chinchilla
sable (mutation unknown? i think)
himalayan
albino
Inheritance: all recessive to wild type, chinchilla is dominant over the rest, sable is intermediate with himalayan and albino, himalayan is dominant over albino.
chinchilla (cchd/_), seal sable (cchl/cchl), siamese sable (cchl/[ch or c]), himalayan (ch/[ch or c]), albino (c/c)
Dog
colorpoint (two confirmed mutations)
Inheritance: recessive.
image source, image source
Red fox
albino
Inheritance: recessive.
image source
Japanese racoon dog
albino
Inheritance: recessive.
image source
Domestic ferret
albino
Inheritance: recessive.
image source
American mink
himalayan (marbled)
albino (regal white)
Inheritance: recessive to the wild type, interaction unknown.
himalayan, albino
Lion
white
Inheritance: recessive.
image source
Domestic cat
sepia
mocha
point
albino (two mutations)
Inheritance: all recessive to the wild type and intermediate with each other except albino which is recessive to all other alleles.
mink (cb/cs), burmocha (cb/cm), mocha (cm/cm), point (cs/cs), sepia (cb/cb), siamocha (cm/cs); albino (c/c)
Cattle
albino (three mutations)
Inheritance: recessive.
OCA1A, OCA1B
Water buffalo
albino
Inheritance: recessive.
image source
North American bison
albino
Inheritance: recessive.
image source
Red deer
white (dilute)
Inheritance: recessive.
image source
Humpback whale
albino
Inheritance: probably recessive.
image source
Donkey
albino
Inheritance: recessive.
image source
Capuchin monkey
albino
Inheritance: recessive.
image source
Rhesus macaque
golden
albino
Inheritance: recessive to the wild type, interaction unknown.
golden, albino
Hamadryas baboon
colorpoint
Inheritance: recessive.
image source
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Dec 04, 2019 (The Expresswire) -- Tyrosinase Market report delivers statistical overview on growth factors driving or restraining the market with top...
Reposted from @molecule_of_the_day (@get_regrann) - Arbutin is a compound extracted from the bearberry plant đą that has skin-lightening properties. Applied on the skin, it interferes đŤ with activity of an enzyme called tyrosinase, which is needed to produce melanin or pigment in the skin. Hence, arbutin is most commonly used in lotions đ§´, serums and treatments intended to lighten dark sun âď¸ spots and brighten the overall complexion. It is a good alternative to hydroquinone, which is now banned âď¸ in many countries due to its potential cancer-causing properties. Often, it is paired with other skin-lightening agents like kojic acid, vitamin C or niacinamide to have a greater effect. Thanks đ anonymous for the suggestion! The molecular structure was created using ChemDoodle. Be sure to follow them at @ichemlabs! #arbutin #skin #skincare #skinlightening #tyrosinase #sunspot #complexion #hydroquinone #kojicacid #vitaminc #niacinamide #health #wellness #beauty #photooftheday #chemistry #art #molecule - #regrann (en Urb Los Ficus - Santa Anita) https://www.instagram.com/p/B0c7WhGnc5Z/?igshid=l3cyusvf3gwn
Albinism is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of tyrosinase, a copper-containing enzyme involved in the production of melanin. Albinism results from inheritance of recessive gene alleles and is known to affect all vertebrates.