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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Hoxd3tm1Mrc
targeted mutation 1, Mario R Capecchi
MGI:1857959
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Hoxd3tm1Mrc/Hoxd3tm1Mrc involves: 129S7/SvEvBrd * C57BL/6J MGI:2170429
cx2
Hoxb3tm1Mrc/Hoxb3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6J MGI:3611935
cx3
Hoxa3tm1Mrc/Hoxa3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S7/SvEvBrd MGI:4461316
cx4
Hoxa3tm2Nrm/Hoxa3+
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S7/SvEvBrd * C3H * C57BL/6 * C57BL/6NHsd MGI:4461314
cx5
Hoxa3tm2Nrm/Hoxa3tm2Nrm
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S7/SvEvBrd * C3H * C57BL/6 * C57BL/6NHsd MGI:4461315
cx6
Hoxa3tm1Mrc/Hoxa3+
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S7/SvEvBrd * C57BL/6J MGI:3611937
cx7
Hoxa3tm1Mrc/Hoxa3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
involves: 129S7/SvEvBrd * C57BL/6J MGI:3612029


Genotype
MGI:2170429
hm1
Allelic
Composition
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• survival normal through to birth
• many die within the first 5 days of life
• surviving mice are fertile

skeleton
• the rib fusions on the two sides of the stermum are offset from one another
• the atlas is narrower than normal
• intermediate transformation of atlas in 15% of mice, remains independent vertebrum but osseous bridges develop to skull
• atlantal neural arch is usually incomplete
• the anterior arch of the atlas is assimilated into caudal part of the basioccipital bone
• axis lacks superior articular surfaces
• thicker neural arch on axis
• cartilaginous foramina of normal atlas now in axis (sometimes only unilateral)
• axis lacks dens

cardiovascular system
• vertebral artery enters spinal canal more caudally than normal

nervous system
• first cervical nerve runs through a foramen in the floor of the skull

craniofacial
• the anterior arch of the atlas is assimilated into caudal part of the basioccipital bone




Genotype
MGI:3611935
cx2
Allelic
Composition
Hoxb3tm1Mrc/Hoxb3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxb3tm1Mrc mutation (0 available); any Hoxb3 mutation (16 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• about 50% die at birth
• all homozygotes dead by the end of the first week after birth

skeleton
• greater horn sometimes fused to thyroid cartilage
• reduced in size
• dorsally associated cartilage of thyroid cartilage is missing
• neural arch resembles more posterior cervical vertebrae (C3-C5)
• atlas missing, with small cartilage remnants

nervous system
• partial deletion of cranial nerve IX or fusion to cranial nerve X, increased penetrance

endocrine/exocrine glands
• low penetrance of partially fused ultimobranchial bodies

respiratory system
• dorsally associated cartilage of thyroid cartilage is missing

craniofacial
• greater horn sometimes fused to thyroid cartilage
• reduced in size

embryo
• low penetrance of partially fused ultimobranchial bodies




Genotype
MGI:4461316
cx3
Allelic
Composition
Hoxa3tm1Mrc/Hoxa3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa3tm1Mrc mutation (0 available); any Hoxa3 mutation (24 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton

craniofacial




Genotype
MGI:4461314
cx4
Allelic
Composition
Hoxa3tm2Nrm/Hoxa3+
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd * C3H * C57BL/6 * C57BL/6NHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa3tm2Nrm mutation (0 available); any Hoxa3 mutation (24 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• authors state than mice resemble Hoxd3tm1Mrc homozygotes




Genotype
MGI:4461315
cx5
Allelic
Composition
Hoxa3tm2Nrm/Hoxa3tm2Nrm
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd * C3H * C57BL/6 * C57BL/6NHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa3tm2Nrm mutation (0 available); any Hoxa3 mutation (24 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton

craniofacial




Genotype
MGI:3611937
cx6
Allelic
Composition
Hoxa3tm1Mrc/Hoxa3+
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa3tm1Mrc mutation (0 available); any Hoxa3 mutation (24 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• lobes of thymus displaced anteriorly

endocrine/exocrine glands
• ectopic parathyroids near the anterior ends of the thymus
• lobes of thymus displaced anteriorly

hematopoietic system
• lobes of thymus displaced anteriorly




Genotype
MGI:3612029
cx7
Allelic
Composition
Hoxa3tm1Mrc/Hoxa3tm1Mrc
Hoxd3tm1Mrc/Hoxd3tm1Mrc
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hoxa3tm1Mrc mutation (0 available); any Hoxa3 mutation (24 available)
Hoxd3tm1Mrc mutation (0 available); any Hoxd3 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• pyramidal ventral lobes
• ultimobranchial bodies, 100% persistent in adults

immune system

embryo
• ultimobranchial bodies, 100% persistent in adults

hematopoietic system





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last database update
10/09/2024
MGI 6.24
The Jackson Laboratory