B Locus - Brown

Brown coat colour

Symptoms
Eumelanin colour ranges from chocolate to cinnamon.

Gene involved
TYRP1

Mutation tested
c.298C>T (bl)

Transmission mode : Autosomal recessive
Age of onset : From birth
Specificity : Cinnamon (light brown) coat colour

Publication : Lyons et al. (2005). Chocolate coated cats: TYRP1 mutations for brown color in domestic cats.
Schmidt-Küntzel et al. (2005). Tyrosinase and tyrosinase related protein 1 alleles specify domestic cat coat color phenotypes of the albino and brown loci.

Gene involved
TYRP1

Mutation tested
c.1261+5G>A (b)

Transmission mode : Autosomal recessive
Age of onset : From birth
Specificity : Chocolate coat colour

Publication : Lyons et al. (2005). Chocolate coated cats: TYRP1 mutations for brown color in domestic cats.