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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Hoxb6-cre)#Mku
transgene insertion, Michael R Kuehn
MGI:4366041
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Has2tm1.1Chg/Has2tm1.2Chg
Tg(Hoxb6-cre)#Mku/0
involves: 129 * Black Swiss * C57BL/6 * FVB/N * SJL MGI:5489766
cn2
Cyp26b1tm2Hmd/Cyp26b1tm1Hmd
Tg(Hoxb6-cre)#Mku/?
involves: 129S1/Sv * 129X1/SvJ * C57BL/6JJcl * C57BL/6NCr MGI:5466501
cn3
Isl1tm2Sev/Isl1tm2.1Sev
Tg(Hoxb6-cre)#Mku/0
involves: 129S1/Sv * 129X1/SvJ * FVB/N MGI:5320482
cn4
Hand2tm1Cse/Hand2+
Tg(Hoxb6-cre)#Mku/0
involves: 129S1/Sv * FVB/N MGI:4417975


Genotype
MGI:5489766
cn1
Allelic
Composition
Has2tm1.1Chg/Has2tm1.2Chg
Tg(Hoxb6-cre)#Mku/0
Genetic
Background
involves: 129 * Black Swiss * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Has2tm1.1Chg mutation (0 available); any Has2 mutation (35 available)
Has2tm1.2Chg mutation (0 available); any Has2 mutation (35 available)
Tg(Hoxb6-cre)#Mku mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• severe cartilage reduction at P0
• reduced chondrocyte differentiation
• joint positioning defects at P0 indicated by prominent changes in phalangeal cartilage nodule organization
• the interphalangeal joints are shifted perpendicularly at P0
• ectopic joints along the digit rays

limbs/digits/tail
• impaired phalangeal mesenchymal condensation
• however, mesenchyme proliferation is normal
• longitudinally oriented cavities that split proximal and medial phalanges
• digit defect in the forelimb is restricted to the posterior digits

embryo
• impaired phalangeal mesenchymal condensation
• however, mesenchyme proliferation is normal




Genotype
MGI:5466501
cn2
Allelic
Composition
Cyp26b1tm2Hmd/Cyp26b1tm1Hmd
Tg(Hoxb6-cre)#Mku/?
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6JJcl * C57BL/6NCr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cyp26b1tm1Hmd mutation (1 available); any Cyp26b1 mutation (35 available)
Cyp26b1tm2Hmd mutation (1 available); any Cyp26b1 mutation (35 available)
Tg(Hoxb6-cre)#Mku mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
N
• epidermis is normal at E18.5

limbs/digits/tail




Genotype
MGI:5320482
cn3
Allelic
Composition
Isl1tm2Sev/Isl1tm2.1Sev
Tg(Hoxb6-cre)#Mku/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Isl1tm2.1Sev mutation (0 available); any Isl1 mutation (33 available)
Isl1tm2Sev mutation (1 available); any Isl1 mutation (33 available)
Tg(Hoxb6-cre)#Mku mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• expression analysis indicates proximal patterning defects in the hindlimb buds
• variable severity of hindlimb digit loss
• almost half of mice display hindlimbs with only 3 digits
• less severely affected mice develop 4 hindlimb digits, lacking the posterior digit 5
• only a single zeugopodal element, likely corresponding to the tibia, is present in most mice with 1 - 3 digits on the hindlimb
• mice with 4 digits on the hindlimb show more variability in zeugopodal defects
• in severely affected mice

embryo
• expression analysis indicates proximal patterning defects in the hindlimb buds

skeleton
• patterning failure
• patterning failure




Genotype
MGI:4417975
cn4
Allelic
Composition
Hand2tm1Cse/Hand2+
Tg(Hoxb6-cre)#Mku/0
Genetic
Background
involves: 129S1/Sv * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hand2tm1Cse mutation (0 available); any Hand2 mutation (12 available)
Tg(Hoxb6-cre)#Mku mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• embryos are viable to birth

embryo
N
• no visible defects are observed in extraembryonic mesoderm formation

limbs/digits/tail
• mutant neonates exhibit severe limb deformities

cardiovascular system
N
• no visible defects are observed in blood vessel formation





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory