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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Hoxa11tm1Ssp
targeted mutation 1, S Steven Potter
MGI:2135973
Summary 21 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Hoxa11tm1Ssp/Hoxa11tm1Ssp involves: 129S2/SvPas MGI:3810951
hm2
Hoxa11tm1Ssp/Hoxa11tm1Ssp involves: 129S2/SvPas * CF-1 MGI:2178117
hm3
Hoxa11tm1Ssp/Hoxa11tm1Ssp Not Specified MGI:2665312
ht4
Hoxa11tm1Ssp/Hoxa11+ involves: 129S2/SvPas * C57BL/6J MGI:3718237
ht5
Hoxa11tm1Ssp/Hoxa11+ involves: 129S2/SvPas * CF-1 MGI:2178118
ht6
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp either: (involves: 129P2/OlaHsd * 129S2/SvPas) or (involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ) MGI:3810952
cx7
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp
Hoxd11tm1Mrc/Hoxd11+
either: (involves: 129P2/OlaHsd * 129S2/SvPas * 129S7/SvEvBrd) or (involves: 129S1/Sv * 129S2/SvPas * 129S7/SvEvBrd * 129X1/SvJ) MGI:3810948
cx8
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
either: (involves: 129P2/OlaHsd * 129S2/SvPas * 129S7/SvEvBrd) or (involves: 129S1/Sv * 129S2/SvPas * 129S7/SvEvBrd * 129X1/SvJ) MGI:3810949
cx9
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
involves: 129S2/SvPas * 129S7/SvEvBrd MGI:3810950
cx10
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11+
involves: 129S2/SvPas * 129S7/SvEvBrd MGI:3810953
cx11
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxc11tm1Mrc/Hoxc11tm1Mrc
Hoxd11tm1Mrc/Hoxd11tm1Mrc
involves: 129S2/SvPas * 129S7/SvEvBrd MGI:3844345
cx12
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxc11tm1Mrc/Hoxc11+
Hoxd11tm1Mrc/Hoxd11tm1Mrc
involves: 129S2/SvPas * 129S7/SvEvBrd MGI:3844346
cx13
Hoxa11tm1Ssp/Hoxa11+
Hoxdtm3Ddu/Hoxd+
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL MGI:2178137
cx14
Hoxa11tm1Ssp/Hoxa11+
Hoxdtm3Ddu/Hoxdtm3Ddu
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL MGI:2178138
cx15
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxdtm3Ddu/Hoxdtm3Ddu
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL MGI:2178140
cx16
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm2.1Ddu/Hoxd11tm2.1Ddu
involves: 129S2/SvPas * C57BL/6J MGI:3718231
cx17
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm2.1Ddu/Hoxd11tm2.1Ddu
involves: 129S2/SvPas * C57BL/6J MGI:3718233
cx18
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm2.1Ddu/Hoxd11+
involves: 129S2/SvPas * C57BL/6J MGI:3718234
cx19
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm2.1Ddu/Hoxd11+
involves: 129S2/SvPas * C57BL/6J MGI:3718236
cx20
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
mixed MGI:2172319
cx21
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm1Mrc/Hoxd11+
mixed MGI:2172332


Genotype
MGI:3810951
hm1
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• the styloid apophyses is abnormal
• mice exhibit a separation in the distal tibia and fibula unlike in wild-type mice

reproductive system
• only a few endometrial glands are present
• few endometrial glands are present and the stromal cell layer is thinner than in wild-type mice
• however, the epithelium and stromal tissue resemble wild-type uterus morphology
• the ductus deferens is tortuous and exhibit anteriorization

skeleton
• the styloid apophyses is abnormal

endocrine/exocrine glands
• only a few endometrial glands are present




Genotype
MGI:2178117
hm2
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Genetic
Background
involves: 129S2/SvPas * CF-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• pisiform and triangular carpal bones fused
• malformed ulna and ulnar epiphysis

skeleton
• pisiform and triangular carpal bones fused
• malformed ulna and ulnar epiphysis
• one fewer rib than normal
• transformation of the thirteenth thoracic (T13) vertebra to the first lumbar (L1) vertebra
• addition of an eighth lumbar vertebra

endocrine/exocrine glands
• sexually mature mutant testes are smaller than wild-type
• mutant testes exhibit incomplete descent into the scrotal sac, with variable expressivity
• in some mutants, testes are located intra-abdominally near the inferior pole of the kidneys

reproductive system
• in severe cases, many mutant male germ cells appear to undergo cell death by apoptosis
• sexually mature mutant testes are smaller than wild-type
• mutant testes exhibit incomplete descent into the scrotal sac, with variable expressivity
• in some mutants, testes are located intra-abdominally near the inferior pole of the kidneys
• sexually mature male homozygotes display abnormal spermatogenesis with variable expressivity
• in severe cases, spermatogenesis fails to occur
• although numerous spermatogonia are present, no mature sperm are found in the luminal lining of mutant seminiferous tubules
• also, no mature sperm are detected in mutant epididymides which only contain cell debris and fluid
• some mature sperm cell populations are present occasionally, consistent with variable expressivity
• the mutant vas deferens is extensively coiled, esp. at the junction between the vas deferens and the cauda epididymis
• the lumen is patent but the luminal diameter is smaller than wild-type
• the epithelial lining appears more simple due to a reduced complexity of mucosal folding; a more stratified organization of the epithelial lining is observed
• the epithelial lining cells are more narrow and columnar than wild-type cells
• the nuclei are located more basally than wild-type nuclei
• the vas deferens malformation resembles a partial homeotic transformation to an epididymis
• the mutant vas deferens is hypoplastic relative to wild-type
• mutant uteri are unable to support embryonic development to term
• however, mutant ova develop properly post-fertilization when transplanted into oviducts of surrogate mothers, with all embryo transfers resulting in births of normal litters
• multiple matings between mature male and female homozygotes fail to produce any offspring
• female homozygotes mate normally with wild-type males but produce no progeny
• however, mutant ovaries appear histologically normal, and normal numbers of zygotes are retrieved from the oviducts upon detection of the vaginal plug
• also, development of embryos within the oviducts appears unaffected, and normal blastocysts are detected at E3.5
• male homozygotes copulate with wild-type females and produce vaginal plugs at a normal frequency, but no pups are born

cellular
• although numerous spermatogonia are present, no mature sperm are found in the luminal lining of mutant seminiferous tubules
• also, no mature sperm are detected in mutant epididymides which only contain cell debris and fluid
• some mature sperm cell populations are present occasionally, consistent with variable expressivity
• in severe cases, many mutant male germ cells appear to undergo cell death by apoptosis




Genotype
MGI:2665312
hm3
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• proximal carpal bones are fused
• one additional mutant allele at the Hoxd11 locus leads to carpal malformation as well
• homeotic transformation of first sacral vertebra to lumbar vertebra 7

limbs/digits/tail
• proximal carpal bones are fused
• one additional mutant allele at the Hoxd11 locus leads to carpal malformation as well




Genotype
MGI:3718237
ht4
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Genetic
Background
involves: 129S2/SvPas * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• 6 of 9 mice have carpal bone defects
• 1 of 9 mice have abnormal L7 formula instead of an L6 formula found in wild-type mice

limbs/digits/tail
• 6 of 9 mice have carpal bone defects




Genotype
MGI:2178118
ht5
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Genetic
Background
involves: 129S2/SvPas * CF-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• normal number of ribs, but one rudimentary rib
• transformation of the thirteenth thoracic (T13) vertebra to the first lumbar (L1) vertebra
• ~ 50% penetrance

reproductive system
• heterozygous mutant uteri are only marginally capable of supporting embryonic development to term
• only 165 living embryos out of a total of 480 implantation sites are detected at 10.5 and 11.5 of gestation
• heterozygous females produce severely reduced litter sizes




Genotype
MGI:3810952
ht6
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp
Genetic
Background
either: (involves: 129P2/OlaHsd * 129S2/SvPas) or (involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxa11tm2.1(Hoxa13)Ssp mutation (0 available); any Hoxa11 mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• 33% of mice exhibit a reduction in the calcaneus bone compared to in wild-type mice
• shortened and malformed

skeleton
• 33% of mice exhibit a reduction in the calcaneus bone compared to in wild-type mice

reproductive system




Genotype
MGI:3810948
cx7
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp
Hoxd11tm1Mrc/Hoxd11+
Genetic
Background
either: (involves: 129P2/OlaHsd * 129S2/SvPas * 129S7/SvEvBrd) or (involves: 129S1/Sv * 129S2/SvPas * 129S7/SvEvBrd * 129X1/SvJ)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxa11tm2.1(Hoxa13)Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• 72% of mice exhibit a reduction in the calcaneus bone compared to in wild-type mice
• shortened and malformed

reproductive system
N
• male mice are fertile

skeleton
• 72% of mice exhibit a reduction in the calcaneus bone compared to in wild-type mice




Genotype
MGI:3810949
cx8
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm2.1(Hoxa13)Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
Genetic
Background
either: (involves: 129P2/OlaHsd * 129S2/SvPas * 129S7/SvEvBrd) or (involves: 129S1/Sv * 129S2/SvPas * 129S7/SvEvBrd * 129X1/SvJ)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxa11tm2.1(Hoxa13)Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some mice die prior to P30
• some mice die prior to P30
• some mice die prior to P30

limbs/digits/tail
• the styloid apophyses is severely reduced and/or fused to the ulna and radius
• all mice exhibit a reduction in the calcaneus bone compared to in wild-type mice
• shortened and malformed

renal/urinary system
• mice exhibit an indentation in the anterior region of the left kidney unlike in wild-type mice
• one pair in eight pairs of kidneys exhibit small cysts
• the medulla layer is smaller and more disorganized than in wild-type mice
• proximal tubule lumens are more distinct than in Hoxa11tm1Ssp Hoxd11tm1Mrc homozygotes
• mice exhibit fewer dilated tubules than in Hoxa11tm1Ssp Hoxd11tm1Mrc homozygotes

skeleton
• the styloid apophyses is severely reduced and/or fused to the ulna and radius
• all mice exhibit a reduction in the calcaneus bone compared to in wild-type mice

reproductive system

growth/size/body
• one pair in eight pairs of kidneys exhibit small cysts




Genotype
MGI:3810950
cx9
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
Genetic
Background
involves: 129S2/SvPas * 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• only 0.72% of mice survive to P30
• only 0.72% of mice survive to P30
• some mice die shortly after birth
• most mice die prior to P30

limbs/digits/tail
• the styloid apophyses is severely reduced and/or fused to the ulna and radius
• the calcaneus bone is reduced and fused to the fibula unlike in wild-type mice
• shortened and malformed

renal/urinary system
• the medulla layer is smaller and more disorganized than in wild-type mice
• proximal tubule lumens are less distinct than in wild-type mice
• many proximal tubules are occluded
• distal tubules are severely dilated

skeleton
• the styloid apophyses is severely reduced and/or fused to the ulna and radius
• the calcaneus bone is reduced and fused to the fibula unlike in wild-type mice

growth/size/body




Genotype
MGI:3810953
cx10
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11+
Genetic
Background
involves: 129S2/SvPas * 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• shortened and malformed

skeleton




Genotype
MGI:3844345
cx11
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxc11tm1Mrc/Hoxc11tm1Mrc
Hoxd11tm1Mrc/Hoxd11tm1Mrc
Genetic
Background
involves: 129S2/SvPas * 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxc11tm1Mrc mutation (0 available); any Hoxc11 mutation (14 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
N
• despite altered vertebral identity, the number of vertebrae is normal
• sacral vertebrae adopt lumbar vertebra morphologies (J:84456)
• the sacral region is lumbar-like (J:124112)

limbs/digits/tail




Genotype
MGI:3844346
cx12
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxc11tm1Mrc/Hoxc11+
Hoxd11tm1Mrc/Hoxd11tm1Mrc
Genetic
Background
involves: 129S2/SvPas * 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxc11tm1Mrc mutation (0 available); any Hoxc11 mutation (14 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• anterior sacral vertebrae lack sacral wings unlike in wild-type mice
• however, posterior sacral elements possess sacral wings




Genotype
MGI:2178137
cx13
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Hoxdtm3Ddu/Hoxd+
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxdtm3Ddu mutation (0 available); any Hoxd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
N
• normal morphology of the ulna, radius, tibia, and fibula




Genotype
MGI:2178138
cx14
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Hoxdtm3Ddu/Hoxdtm3Ddu
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxdtm3Ddu mutation (0 available); any Hoxd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• lack of distal fusion of tibia and fibula
• lack of distal fusion of tibia and fibula

skeleton
• lack of distal fusion of tibia and fibula
• lack of distal fusion of tibia and fibula




Genotype
MGI:2178140
cx15
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxdtm3Ddu/Hoxdtm3Ddu
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * CF-1 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxdtm3Ddu mutation (0 available); any Hoxd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• thickening of radius
• thickening of ulna
• lack of distal fusion of tibia and fibula
• thickening of fibula
• lack of distal fusion of tibia and fibula
• thickening of tibia

skeleton
• thickening of radius
• thickening of ulna
• lack of distal fusion of tibia and fibula
• thickening of fibula
• lack of distal fusion of tibia and fibula
• thickening of tibia




Genotype
MGI:3718231
cx16
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm2.1Ddu/Hoxd11tm2.1Ddu
Genetic
Background
involves: 129S2/SvPas * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm2.1Ddu mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• 11 of 11 mice have abnormal L4
• 4 of 11 mice have abnormal L6
• 7 of 11 mice have an L7 formula instead of an L6 formula found in wild-type mice




Genotype
MGI:3718233
cx17
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm2.1Ddu/Hoxd11tm2.1Ddu
Genetic
Background
involves: 129S2/SvPas * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm2.1Ddu mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• 2 of 2 mice have carpal bone defects
• pisiform and pyramidal bones are fused and attached to the navicular-lunate
• radius and ulna are abnormally broad
• radius and ulna are abnormally broad
• 2 of 2 mice have abnormal L4
• 2 of 2 mice have an L7 formula instead of an L6 formula found in wild-type mice

limbs/digits/tail
• 2 of 2 mice have carpal bone defects
• pisiform and pyramidal bones are fused and attached to the navicular-lunate
• radius and ulna are abnormally broad
• radius and ulna are abnormally broad




Genotype
MGI:3718234
cx18
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm2.1Ddu/Hoxd11+
Genetic
Background
involves: 129S2/SvPas * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm2.1Ddu mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• 4 of 7 mice have carpal bone defects
• 6 of 7 mice have abnormal L4
• 6 of 7 mice have an L7 formula instead of an L6 formula found in wild

limbs/digits/tail
• 4 of 7 mice have carpal bone defects




Genotype
MGI:3718236
cx19
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm2.1Ddu/Hoxd11+
Genetic
Background
involves: 129S2/SvPas * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm2.1Ddu mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• 1 of 11 mice have carpal bone defects
• 7 of 11 mice have abnormal L4
• 1 of 11 mice have abnormal L6
• 2 of 11 mice have an L7 formula instead of an L6 formula found in wild-type mice

limbs/digits/tail
• 1 of 11 mice have carpal bone defects




Genotype
MGI:2172319
cx20
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11tm1Ssp
Hoxd11tm1Mrc/Hoxd11tm1Mrc
Genetic
Background
mixed
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most pups die perinatally of kidney dysfunction
• only about 20% of the expected number of homozygotes survive to weaning

skeleton
• deformed navicular lunate
• triangular bone either fused to distal carpals or missing
• pisiform bone is missing
• triangular bone is either missing or fused to distal carpals
• proximal tarsal bones are absent
• first and second phalanges of digit 3 often fused
• second phalange of digits 2 and 5 often missing
• almost completely absent
• almost completely absent
• never fuses distally with tibia
• reduced in length
• occasionally one caudal vertebra is lost
• homeotic transformation of thoracic vertebra 13 to lumbar vertebra 1
• nine rather than six lumbar vertebrae
• non-transformed sacral vertebrae fail to fuse
• occasionally only one is present
• homeotic transformation of sacral vertebrae 1 and 2 to lumbar vertebrae 8 and 9

limbs/digits/tail
• absence of radius and ulna results in forepaw being rotated 90o from axis
• autopod abnormalities already becoming established at E13.5
• digits 1 to 3 curved preaxially
• digits 1 to 3 joined by overlying skin
• abnormal zeugopod abnormalities already becoming established at E13.5
• deformed navicular lunate
• triangular bone either fused to distal carpals or missing
• pisiform bone is missing
• triangular bone is either missing or fused to distal carpals
• first and second phalanges of digit 3 often fused
• second phalange of digits 2 and 5 often missing
• proximal tarsal bones are absent
• almost completely absent
• almost completely absent
• never fuses distally with tibia
• reduced in length
• occasionally one caudal vertebra is lost

renal/urinary system
• more caudal and medial in location
• occasionally "dumb-bell" shaped
• lateral rather than medial insertion of ureter
• poorly developed in newborns
• little nephrogenic activity in the subscapular region of the kidney
• thick cortical tissue in adult kidneys
• poorly developed in newborns
• mesenchyme surrounding tips of nephric ducts does not condense and is easily fragmented
• poorly developed in the adult kidney
• severe renal hypoplasia in newborns
• those present in the adult are well developed and the glomerulae are mor or less normal
• one or both kidneys often absent
• single outgrowth from the caudal segment of the Wolffian duct develops normally at E11.5
• defects in branching morphology evident by E13.5 although elongation continues
• absence of epithelial structures in ureteric bud branches
• branch termini are absent in mid ventral kidney at E13.5 but not in poles and dorsum

reproductive system
• transformed toward a morphology similar to the epidymis




Genotype
MGI:2172332
cx21
Allelic
Composition
Hoxa11tm1Ssp/Hoxa11+
Hoxd11tm1Mrc/Hoxd11+
Genetic
Background
mixed
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa11tm1Ssp mutation (0 available); any Hoxa11 mutation (11 available)
Hoxd11tm1Mrc mutation (0 available); any Hoxd11 mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• proximal carpal bones are fused
• one additional mutant allele at either locus leads to carpal malformation as well
• homeotic transformation of first sacral vertebra to lumbar vertebra 7

limbs/digits/tail
• proximal carpal bones are fused
• one additional mutant allele at either locus leads to carpal malformation as well





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)
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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory