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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Mlanatm1.2Bee
targeted mutation 1.2, Friedrich Beermann
MGI:5476663
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Mlanatm1.2Bee/Mlanatm1.2Bee involves: 129S/SvEv * C57BL/6 * FVB/N * SJL MGI:5484926
cx2
Mlanatm1.2Bee/Mlanatm1.2Bee
Tyrc/Tyrc
involves: 129S/SvEv * C57BL/6 * FVB/N * SJL MGI:5484927


Genotype
MGI:5484926
hm1
Allelic
Composition
Mlanatm1.2Bee/Mlanatm1.2Bee
Genetic
Background
involves: 129S/SvEv * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mlanatm1.2Bee mutation (1 available); any Mlana mutation (9 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
N
• mice exhibit normal tail skin, footpad and retina pigmentation
• hair follicle melanosomes have reduced melanin and eumelanin content compared with melanosomes from wild-type mice
• melanosomes in hair follicles exhibit blebbing of the limiting membrane with vesicles between the pigmented compartment and the limiting membrane unlike melanosomes from wild-type mice
• visible 5 days after birth

integument
• reduced number of hairs
• hair follicle melanosomes have reduced melanin and eumelanin content compared with melanosomes from wild-type mice
• melanosomes in hair follicles exhibit blebbing of the limiting membrane with vesicles between the pigmented compartment and the limiting membrane unlike melanosomes from wild-type mice
• visible 5 days after birth




Genotype
MGI:5484927
cx2
Allelic
Composition
Mlanatm1.2Bee/Mlanatm1.2Bee
Tyrc/Tyrc
Genetic
Background
involves: 129S/SvEv * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mlanatm1.2Bee mutation (1 available); any Mlana mutation (9 available)
Tyrc mutation (80 available); any Tyr mutation (379 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• hair follicles lack stage III and IV melanosomes
• however, stage I and II melanosomes are normal

integument
• hair follicles lack stage III and IV melanosomes
• however, stage I and II melanosomes are normal





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory