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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Alx4Lst-2J
Strong's luxoid 2 Jackson
MGI:3829369
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Alx4Lst-2J/Alx4Lst-2J C57BL/6J-Alx4Lst-2J/J MGI:5695543
hm2
Alx4Lst-2J/Alx4Lst-2J involves: C57BL/6J * CD-1 MGI:7336699
ht3
Alx4Lst-2J/Alx4+ C57BL/6J-Alx4Lst-2J/J MGI:5695544
ht4
Alx4Lst-2J/Alx4lst-J involves: C3H/FeJLe * C57BL/6J MGI:5695756
cx5
Alx1em1Jian/Alx1em1Jian
Alx4Lst-2J/Alx4+
involves: C57BL/6J * C57BL/6N * CD-1 MGI:7336700
cx6
Alx1em1Jian/Alx1em1Jian
Alx4Lst-2J/Alx4Lst-2J
involves: C57BL/6J * C57BL/6N * CD-1 MGI:7336704


Genotype
MGI:5695543
hm1
Allelic
Composition
Alx4Lst-2J/Alx4Lst-2J
Genetic
Background
C57BL/6J-Alx4Lst-2J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• homozygotes have polydactyly on all four feet

skeleton
• homozygotes can have large bulges at the anterior skull, above the snout, indicating defective calvaria formation

integument
• homozygotes have dorsal alopecia

craniofacial
• homozygotes can have large bulges at the anterior skull, above the snout, indicating defective calvaria formation

vision/eye
• craniofacial abnormalities of homozygotes includes wide-set eyes

growth/size/body

mortality/aging
• litters from heterozgyous intercrosses often have pups that die perinatally, but a few homozygotes do survive to adulthood

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
parietal foramina DOID:0060285 OMIM:168500
OMIM:609566
OMIM:609597
J:223288




Genotype
MGI:7336699
hm2
Allelic
Composition
Alx4Lst-2J/Alx4Lst-2J
Genetic
Background
involves: C57BL/6J * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• at E18.5, fetuses exhibit failure of eyelid closure

craniofacial
N
• at E18.5, frontonasal development is relatively normal; the premaxilla appears normally developed




Genotype
MGI:5695544
ht3
Allelic
Composition
Alx4Lst-2J/Alx4+
Genetic
Background
C57BL/6J-Alx4Lst-2J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• preaxial polydactyly on one hind limb is often found

craniofacial

growth/size/body




Genotype
MGI:5695756
ht4
Allelic
Composition
Alx4Lst-2J/Alx4lst-J
Genetic
Background
involves: C3H/FeJLe * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye

limbs/digits/tail




Genotype
MGI:7336700
cx5
Allelic
Composition
Alx1em1Jian/Alx1em1Jian
Alx4Lst-2J/Alx4+
Genetic
Background
involves: C57BL/6J * C57BL/6N * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx1em1Jian mutation (0 available); any Alx1 mutation (22 available)
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
• at E18.5, the presphenoid bone in the cranial base is severely malformed
• at E18.5, the premaxilla is severely malformed
• at E10.5, a clear reduction of Pax7 expression is observed in the caudal region of the lateral nasal process (LNP); both Lhx6 and Lhx8 mRNAs show higher ectopic expression in the caudal region of the LNP than in Alx1em1Jian homozygotes
• at E18.5, severe notching of the upper lip is observed
• at E18.5, the philtrum is further shortened relative to Alx1em1Jian homozygotes
• at E18.5, the nasal bridge is severely widened
• at E18.5, the nasal bridge is severely depressed

growth/size/body
• at E18.5, severe notching of the upper lip is observed
• at E18.5, the philtrum is further shortened relative to Alx1em1Jian homozygotes
• at E18.5, the nasal bridge is severely widened
• at E18.5, the nasal bridge is severely depressed

skeleton
• at E18.5, the presphenoid bone in the cranial base is severely malformed
• at E18.5, the premaxilla is severely malformed

respiratory system
• at E18.5, the nasal bridge is severely widened
• at E18.5, the nasal bridge is severely depressed




Genotype
MGI:7336704
cx6
Allelic
Composition
Alx1em1Jian/Alx1em1Jian
Alx4Lst-2J/Alx4Lst-2J
Genetic
Background
involves: C57BL/6J * C57BL/6N * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx1em1Jian mutation (0 available); any Alx1 mutation (22 available)
Alx4Lst-2J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
• at E18.5, the premaxilla is severely malformed
• at E10.5, the domain of Pax7 expression is severely reduced while the domain of ectopic expression of both Lhx6 and Lhx8 mRNAs is further expanded in the lateral nasal process (LNP)
• at E10.5, ectopic activation of Lhx6 and Lhx8 expression is observed in the medial nasal processes (MNP)
• at E18.5, a wide midline cleft of the upper lip and nose is observed
• at E18.5, an overt midline facial cleft is observed, with a wide gap separating the rudimentary nasal structures

growth/size/body
• at E18.5, a wide midline cleft of the upper lip and nose is observed
• at E18.5, an overt midline facial cleft is observed, with a wide gap separating the rudimentary nasal structures

skeleton
• at E18.5, the premaxilla is severely malformed





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