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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dct+
wild type
MGI:2432896
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
DctSlt-lt3J/Dct+ B6(Cg)-DctSlt-lt3J/J MGI:3817201
cn2
Dcttm1(cre)Bee/Dct+
Resttm1.1Yasu/Resttm1.1Yasu
involves: 129/Sv * 129S4/SvJae * C57BL/6 MGI:6241506
cn3
Dcttm1(cre)Bee/Dct+
Resttm1.1Yasu/Rest+
involves: 129/Sv * 129S4/SvJae * C57BL/6 MGI:6241494
cx4
a/a
DctSlt-lt/Dct+
involves: C3H/HeJ MGI:5763609
cx5
A/?
DctSlt-lt/Dct+
involves: C3H/HeJ MGI:3576263


Genotype
MGI:3817201
ht1
Allelic
Composition
DctSlt-lt3J/Dct+
Genetic
Background
B6(Cg)-DctSlt-lt3J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
DctSlt-lt3J mutation (1 available); any Dct mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• coat color is dark grey instead of black

integument
• coat color is dark grey instead of black




Genotype
MGI:6241506
cn2
Allelic
Composition
Dcttm1(cre)Bee/Dct+
Resttm1.1Yasu/Resttm1.1Yasu
Genetic
Background
involves: 129/Sv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dcttm1(cre)Bee mutation (1 available); any Dct mutation (36 available)
Resttm1.1Yasu mutation (1 available); any Rest mutation (92 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• in rare cases (2 of 40), mice develop a small white spot on their forehead

integument
• in rare cases (2 of 40), mice develop a small white spot on their forehead




Genotype
MGI:6241494
cn3
Allelic
Composition
Dcttm1(cre)Bee/Dct+
Resttm1.1Yasu/Rest+
Genetic
Background
involves: 129/Sv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dcttm1(cre)Bee mutation (1 available); any Dct mutation (36 available)
Resttm1.1Yasu mutation (1 available); any Rest mutation (92 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
N
• mice never form white spots including on the belly region




Genotype
MGI:5763609
cx4
Allelic
Composition
a/a
DctSlt-lt/Dct+
Genetic
Background
involves: C3H/HeJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a mutation (166 available); any a mutation (468 available)
DctSlt-lt mutation (1 available); any Dct mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• on a non-agouti background, the coat color of mice heterozygous for DctSlt-lt is dark brown, closely resembling that of Dctslt/Dctslt or Dctslt/DctSlt-lt mice.

pigmentation
• on a non-agouti background, the coat color of mice heterozygous for DctSlt-lt is dark brown, closely resembling that of Dctslt/Dctslt or Dctslt/DctSlt-lt mice.




Genotype
MGI:3576263
cx5
Allelic
Composition
A/?
DctSlt-lt/Dct+
Genetic
Background
involves: C3H/HeJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
A mutation (80 available); any a mutation (468 available)
DctSlt-lt mutation (1 available); any Dct mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• on an agouti background, the coat color of mice heterozygous for DctSlt-lt is light agouti.

integument
• on an agouti background, the coat color of mice heterozygous for DctSlt-lt is light agouti.





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last database update
01/20/2026
MGI 6.24
The Jackson Laboratory