About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Krt71+
wild type
MGI:2439581
Summary 14 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Krt71Ca-16J/Krt71+ B6.D2/22Ei MGI:2668552
ht2
Krt71Ca-19J/Krt71+ BALB/cJ-Krt71Ca-19J/GrsrJ MGI:5586979
ht3
Krt71Mhdarco12/Krt71+ C3HeB/FeJ-Krt71Mhdarco12 MGI:3695039
ht4
Krt71Mhdarco13/Krt71+ C3HeB/FeJ-Krt71Mhdarco13 MGI:3695042
ht5
Krt71Ca-17J/Krt71+ C57BL/6J-Krt71Ca-17J/GrsrJ MGI:5291648
ht6
Krt71Ca-J/Krt71+ C57BL/6J-Krt71Ca-J MGI:5463480
ht7
Krt71Ca-d/Krt71+ involves: 101/H * C3H/HeH MGI:3844011
ht8
Krt71Ca-14J/Krt71+ involves: BALB/cByJ MGI:5463633
ht9
Krt71Ca-7J/Krt71+ involves: BALB/cJ MGI:5438393
ht10
Krt71Ca-15J/Krt71+ involves: C57BL/6J MGI:5463634
ht11
Krt71Ca-8J/Krt71+ involves: DBA/2J MGI:5438395
ht12
Krt71Ca-18J/Krt71+ NOD/ShiLtJ-Krt71Ca-18J/GrsrJ MGI:5563240
ht13
Krt71Ca/Krt71+ Not Specified MGI:3697453
cx14
Hag/Hag+
Krt71Ca/Krt71+
involves: C3H/HeN * C57BL/6ByJ MGI:3697449


Genotype
MGI:2668552
ht1
Allelic
Composition
Krt71Ca-16J/Krt71+
Genetic
Background
B6.D2/22Ei
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-16J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument




Genotype
MGI:5586979
ht2
Allelic
Composition
Krt71Ca-19J/Krt71+
Genetic
Background
BALB/cJ-Krt71Ca-19J/GrsrJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-19J mutation (1 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• wavy coat
• wavy vibrissae

hearing/vestibular/ear
N
• auditory brainstem response analysis found no hearing deficit in two heterozygotes at 68 days of age

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
hypotrichosis 13 DOID:0110710 OMIM:615896
J:213988




Genotype
MGI:3695039
ht3
Allelic
Composition
Krt71Mhdarco12/Krt71+
Genetic
Background
C3HeB/FeJ-Krt71Mhdarco12
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Mhdarco12 mutation (1 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Phenotype of Krt71Mhdarco12/+ or Krt71Mhdarco12/Krt71Mhdarco12 and Krt71Mhdarco13/+ or Krt71Mhdarco13/Krt71Mhdarco13 mice.

integument
• curl visible by P10
• becomes less pronounced by 3 months of age
• irregular formation of Henle's and Huxley's layers
• areas of increased thickness in Henle's layer are associated with round structures
• intermediate keratin filaments in Henle's layer form large whorls with short lengths of linear intermediate filament bundles




Genotype
MGI:3695042
ht4
Allelic
Composition
Krt71Mhdarco13/Krt71+
Genetic
Background
C3HeB/FeJ-Krt71Mhdarco13
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Mhdarco13 mutation (1 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Phenotype of Krt71Mhdarco12/+ or Krt71Mhdarco12/Krt71Mhdarco12 and Krt71Mhdarco13/+ or Krt71Mhdarco13/Krt71Mhdarco13 mice.

integument
• curl visible by P10
• becomes less pronounced by 3 months of age
• irregular formation of Henle's and Huxley's layers
• areas of increased thickness in Henle's layer are associated with round structures
• intermediate keratin filaments in Henle's layer form large whorls with short lengths of linear intermediate filament bundles




Genotype
MGI:5291648
ht5
Allelic
Composition
Krt71Ca-17J/Krt71+
Genetic
Background
C57BL/6J-Krt71Ca-17J/GrsrJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-17J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• evident when the first coat comes in, pronounced very wavy coat by 3 weeks of age, and ruffled coat persists but becomes less wavy with age
• very curved vibrissae




Genotype
MGI:5463480
ht6
Allelic
Composition
Krt71Ca-J/Krt71+
Genetic
Background
C57BL/6J-Krt71Ca-J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-J mutation (1 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• seen as early as 2 weeks of age util the second hair cycle around 4 weeks of age after which the coat loses its waviness but still has a subtle abnormal appearance.
• can be seen in mutant mice as early as one day of age
• whiskers are curved and grow irregularly




Genotype
MGI:3844011
ht7
Allelic
Composition
Krt71Ca-d/Krt71+
Genetic
Background
involves: 101/H * C3H/HeH
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-d mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• a clear ridge of hair grows down the center of the back and disappears by weaning
• contributes to a ridge of hair down the center of the back of preweanling mice
• as mice age curling decreases and ridge disappears




Genotype
MGI:5463633
ht8
Allelic
Composition
Krt71Ca-14J/Krt71+
Genetic
Background
involves: BALB/cByJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-14J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• seen as early as 2 weeks of age util the second hair cycle around 4 weeks of age after which the coat loses its waviness but still has a subtle abnormal appearance.
• can be seen in mutant mice as early as one day of age
• whiskers are curved and grow irregularly




Genotype
MGI:5438393
ht9
Allelic
Composition
Krt71Ca-7J/Krt71+
Genetic
Background
involves: BALB/cJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-7J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• extent is obvious from 2-4 weeks of age after which the wave is subtle
• vibrissae are curved and grow mutlidirectionally rather than straight and parallel
• evident at one day of age




Genotype
MGI:5463634
ht10
Allelic
Composition
Krt71Ca-15J/Krt71+
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-15J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• seen as early as 2 weeks of age util the second hair cycle around 4 weeks of age after which the coat loses its waviness but still has a subtle abnormal appearance.
• can be seen in mutant mice as early as one day of age
• whiskers are curved and grow irregularly




Genotype
MGI:5438395
ht11
Allelic
Composition
Krt71Ca-8J/Krt71+
Genetic
Background
involves: DBA/2J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-8J mutation (0 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• extent is obvious from 2-4 weeks of age after which the wave is subtle
• vibrissae are curved and grow mutlidirectionally rather than straight and parallel
• evident at one day of age




Genotype
MGI:5563240
ht12
Allelic
Composition
Krt71Ca-18J/Krt71+
Genetic
Background
NOD/ShiLtJ-Krt71Ca-18J/GrsrJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca-18J mutation (1 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• noticeable by two weeks of age
• slight bend or wave in the whiskers

vision/eye
N
• no defects were found in the eyes of two heterozygotes assessed at 3 months of age




Genotype
MGI:3697453
ht13
Allelic
Composition
Krt71Ca/Krt71+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krt71Ca mutation (2 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• more marked in the first pelage
• curved and irregular in direction




Genotype
MGI:3697449
cx14
Allelic
Composition
Hag/Hag+
Krt71Ca/Krt71+
Genetic
Background
involves: C3H/HeN * C57BL/6ByJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hag mutation (4 available); any Hag mutation (4 available)
Krt71Ca mutation (2 available); any Krt71 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• some mice display hairy and bald patches while others display a uniform caracul phenotype
• some mice display hairy and bald patches while others display a uniform caracul phenotype
• within the hairy patches the hair is also curly





Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
01/20/2026
MGI 6.24
The Jackson Laboratory