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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Alx4lst-J
Strong's luxoid Jackson
MGI:1856069
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Alx4lst-J/Alx4lst-J B6C3Fe a/a-Alx4lst-J/J MGI:3769583
ht2
Alx4Lst-2J/Alx4lst-J involves: C3H/FeJLe * C57BL/6J MGI:5695756
cx3
Alx3tm1Hubr/Alx3tm1Hubr
Alx4lst-J/Alx4lst-J
involves: 129P2/OlaHsd * C3H * C57BL/6J * FVB/N MGI:2173156
cx4
Alx3tm1Hubr/Alx3tm1Hubr
Alx4lst-J/Alx4lst-J
involves: 129P2/OlaHsd * C3HeB/FeJ * C57BL/6J MGI:3769581
cx5
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
Tbx15de-H/Tbx15+
involves: 129S7/SvEvBrd * C3H * C57BL/6J MGI:3769580
cx6
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
Tbx15de-H/Tbx15de-H
involves: 129S7/SvEvBrd * C3H * C57BL/6J MGI:3769578
cx7
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
involves: 129S7/SvEvBrd * C3HeB/FeJ * C57BL/6J MGI:3769574


Genotype
MGI:3769583
hm1
Allelic
Composition
Alx4lst-J/Alx4lst-J
Genetic
Background
B6C3Fe a/a-Alx4lst-J/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton




Genotype
MGI:5695756
ht2
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:2173156
cx3
Allelic
Composition
Alx3tm1Hubr/Alx3tm1Hubr
Alx4lst-J/Alx4lst-J
Genetic
Background
involves: 129P2/OlaHsd * C3H * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx3tm1Hubr mutation (0 available); any Alx3 mutation (14 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• double mutant mice generally die within a few hours after birth

craniofacial
• at E12.5 and E13.5, double mutant frontal, parietal, and nasal bones are severely abnormal and reduced
• the alisphenoid and squamosal bones are malformed and reduced
• the basipresphenoid and pterygoid processes are severely deformed and broader
• notably, the posterior elements of the sphenoid bone, the occipital bone and the otic capsule, tympanic ring, inner and middle ear structures appear normal
• these craniofacial defects are first apparent at ~E10.5, when the nasal processes appear to be abnormally positioned
• at E12.5 and E13.5, double mutants display a broader posterior skull, while the anterior skull is truncated
• most facial bones and many other neural crest derived skull elements are deformed, truncated or even absent
• at E12.5 and E13.5, double mutants display a severely deformed and broader skull base
• double mutants display a short cranium, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• double mutants display a broad cranium, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• double mutant newborns display an abnormal skull vault due to a size reduction in the parietal, frontal and nasal bones
• double mutant newborns display wide fontanelles
• double mutants display a more severe size reduction of the parietal bone than single Alx4lst-J homozygotes
• most facial bones are deformed, truncated or even absent
• double mutants display a more severe size reduction of the frontal bone than single Alx4lst-J homozygotes
• at E12.5 and E13.5, the distal part of the dentaries is truncated
• however, incisors are present and the proximal part of the mandible appears normal
• at E12.5 and E13.5, the double mutant premaxilla and maxilla are positioned abnormally laterally
• at E10.5, the double mutant nasal processes (frontal processes of maxilla) are spaced more laterally than in wild-type embryos
• at E12.5 and E13.5, the double mutant premaxilla and maxilla are positioned abnormally laterally
• double mutants display a severe size reduction of the nasal bones
• in double mutant mice, the nasal capsule is split into two separate halves closed by remnants of the nasal septum
• at E12.5 and E13.5, the nasal labyrinths and anterior part of the nasal capsule are severely deformed and curved
• at E12.5 and E13.5, double mutant nasal cavities are malformed
• in contrast, more posterior cranial structures, like the palatal processes and tongue, appear normal
• double mutant newborns lack a medial nasal septum
• mildly affected double mutants display only a partially split nasal tip
• double mutant newborns display a highly variable split nose, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• in severe cases, both lateral halves of the nose are anteriorly truncated and spaced wide apart
• double mutant newborns display a highly variable midfacial clefting of the entire nose region, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• the earliest anatomical defects leading to the cleft nose phenotype are first detected at E10.5, when the nasal processes grow out abnormally laterally
• as a result, the medial nasal processes fail to fuse in the facial midline at E11.5, causing the split nose phenotype
• these defects are associated with a significant number of mesenchymal cells undergoing apoptosis at E10.0 in a restricted region of the frontonasal process of double mutatnt embryos

limbs/digits/tail
• double mutant mice exhibit preaxial polydactyly of the fore- and hindlimbs, similar to that observed in single Alx4lst-J homozygotes
• double mutants lack the deltoid crests, similar to single Alx4lst-J homozygotes

skeleton
• at E12.5 and E13.5, double mutant frontal, parietal, and nasal bones are severely abnormal and reduced
• the alisphenoid and squamosal bones are malformed and reduced
• the basipresphenoid and pterygoid processes are severely deformed and broader
• notably, the posterior elements of the sphenoid bone, the occipital bone and the otic capsule, tympanic ring, inner and middle ear structures appear normal
• these craniofacial defects are first apparent at ~E10.5, when the nasal processes appear to be abnormally positioned
• at E12.5 and E13.5, double mutants display a broader posterior skull, while the anterior skull is truncated
• most facial bones and many other neural crest derived skull elements are deformed, truncated or even absent
• at E12.5 and E13.5, double mutants display a severely deformed and broader skull base
• double mutants display a short cranium, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• double mutants display a broad cranium, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• double mutant newborns display an abnormal skull vault due to a size reduction in the parietal, frontal and nasal bones
• double mutant newborns display wide fontanelles
• double mutants display a more severe size reduction of the parietal bone than single Alx4lst-J homozygotes
• most facial bones are deformed, truncated or even absent
• double mutants display a more severe size reduction of the frontal bone than single Alx4lst-J homozygotes
• at E12.5 and E13.5, the distal part of the dentaries is truncated
• however, incisors are present and the proximal part of the mandible appears normal
• at E12.5 and E13.5, the double mutant premaxilla and maxilla are positioned abnormally laterally
• at E10.5, the double mutant nasal processes (frontal processes of maxilla) are spaced more laterally than in wild-type embryos
• at E12.5 and E13.5, the double mutant premaxilla and maxilla are positioned abnormally laterally
• double mutants display a severe size reduction of the nasal bones
• in double mutant mice, the nasal capsule is split into two separate halves closed by remnants of the nasal septum
• at E12.5 and E13.5, the nasal labyrinths and anterior part of the nasal capsule are severely deformed and curved
• double mutants lack the deltoid crests, similar to single Alx4lst-J homozygotes
• double mutants exhibit a reduction of the medial (sternal) end of the clavicle; not observed in single Alx4lst-J homozygotes

vision/eye
• double mutant newborns display bulging eyes apparently due to cranial defects
• double mutant newborns display wide open eyes more often than single Alx4lst-J homozygotes

behavior/neurological
• double mutant newborns contain no milk in their stomachs

growth/size/body
• double mutants display a severe size reduction of the nasal bones
• in double mutant mice, the nasal capsule is split into two separate halves closed by remnants of the nasal septum
• at E12.5 and E13.5, the nasal labyrinths and anterior part of the nasal capsule are severely deformed and curved
• at E12.5 and E13.5, double mutant nasal cavities are malformed
• in contrast, more posterior cranial structures, like the palatal processes and tongue, appear normal
• double mutant newborns lack a medial nasal septum
• mildly affected double mutants display only a partially split nasal tip
• double mutant newborns display a highly variable split nose, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• in severe cases, both lateral halves of the nose are anteriorly truncated and spaced wide apart
• double mutant newborns display a highly variable midfacial clefting of the entire nose region, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• the earliest anatomical defects leading to the cleft nose phenotype are first detected at E10.5, when the nasal processes grow out abnormally laterally
• as a result, the medial nasal processes fail to fuse in the facial midline at E11.5, causing the split nose phenotype
• these defects are associated with a significant number of mesenchymal cells undergoing apoptosis at E10.0 in a restricted region of the frontonasal process of double mutatnt embryos
• double mutant newborns display air-distended intestines

respiratory system
• double mutants display a severe size reduction of the nasal bones
• in double mutant mice, the nasal capsule is split into two separate halves closed by remnants of the nasal septum
• at E12.5 and E13.5, the nasal labyrinths and anterior part of the nasal capsule are severely deformed and curved
• at E12.5 and E13.5, double mutant nasal cavities are malformed
• in contrast, more posterior cranial structures, like the palatal processes and tongue, appear normal
• double mutant newborns lack a medial nasal septum
• mildly affected double mutants display only a partially split nasal tip
• double mutant newborns display a highly variable split nose, similar to mice that are homozygous for Alx3tm1Fme and heterozygous for Alx4lst-J, and mice that are heterozygous for Alx3tm1Fme and homozygous for Alx4lst-J
• in severe cases, both lateral halves of the nose are anteriorly truncated and spaced wide apart

digestive/alimentary system
• double mutant newborns display air-distended intestines




Genotype
MGI:3769581
cx4
Allelic
Composition
Alx3tm1Hubr/Alx3tm1Hubr
Alx4lst-J/Alx4lst-J
Genetic
Background
involves: 129P2/OlaHsd * C3HeB/FeJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx3tm1Hubr mutation (0 available); any Alx3 mutation (14 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton




Genotype
MGI:3769580
cx5
Allelic
Composition
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
Tbx15de-H/Tbx15+
Genetic
Background
involves: 129S7/SvEvBrd * C3H * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx1tm1Crm mutation (0 available); any Alx1 mutation (22 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
Tbx15de-H mutation (1 available); any Tbx15 mutation (46 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• scapular blade is more severely malformed than in double Alx4 and Alx1 mutants
• spine is more reduced than in double Alx4 and Alx1 mutants




Genotype
MGI:3769578
cx6
Allelic
Composition
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
Tbx15de-H/Tbx15de-H
Genetic
Background
involves: 129S7/SvEvBrd * C3H * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx1tm1Crm mutation (0 available); any Alx1 mutation (22 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
Tbx15de-H mutation (1 available); any Tbx15 mutation (46 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• severe reduction of the scapular blade at E16.5; the only remnants of the scapula are the glenoid fossa, a small fraction of the acromion, and the posterior part of the blade




Genotype
MGI:3769574
cx7
Allelic
Composition
Alx1tm1Crm/Alx1tm1Crm
Alx4lst-J/Alx4lst-J
Genetic
Background
involves: 129S7/SvEvBrd * C3HeB/FeJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Alx1tm1Crm mutation (0 available); any Alx1 mutation (22 available)
Alx4lst-J mutation (1 available); any Alx4 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• clavicle is truncated
• scapular blade rostral from the spine is absent
• acromion is shortened
• spine is shortened
• pubic bone is more severely reduced than in single mutants





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory