About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Pals1tm1Caw
targeted mutation 1, Christopher A Walsh
MGI:4459078
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Pals1tm1Caw/Pals1tm1Caw Not Specified MGI:4459294
cn2
Pals1tm1Caw/Pals1tm1Caw
Tsc2tm1.1Mjg/Tsc2tm1.1Mjg
Emx1tm1(cre)Krj/Emx1+
involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ MGI:4459298
cn3
Pals1tm1Caw/Pals1tm1Caw
Emx1tm1(cre)Krj/Emx1+
involves: 129S2/SvPas MGI:4459295
cn4
Pals1tm1Caw/Pals1+
Emx1tm1(cre)Krj/Emx1+
involves: 129S2/SvPas MGI:4459297
cn5
Pals1tm1Caw/Pals1+
Tg(rx3-icre)1Mjam/0
Not Specified MGI:5428847
cn6
Pals1tm1Caw/Pals1tm1Caw
Tg(rx3-icre)1Mjam/0
Not Specified MGI:5428846


Genotype
MGI:4459294
hm1
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice display no abnormal phenotypes




Genotype
MGI:4459298
cn2
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Tsc2tm1.1Mjg/Tsc2tm1.1Mjg
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tsc2tm1.1Mjg mutation (1 available); any Tsc2 mutation (78 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• the medial cortex is partially restored compared to in Mpp5tm1Caw/Mpp5tm1Caw Emx1tm1(cre)Krj/Emx1+ mice




Genotype
MGI:4459295
cn3
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal survival

reproductive system
N
• mice exhibit normal reproduction

nervous system
• apoptosis in the cortex is increased beginning at E10.5 and peaks at E11 to E12 compared to in wild-type mice
• at E11 and E12, the number of postmitotic neurons is increased compared to in wild-type mice
• at E12, neuronal progenitor cells withdraw from the cell cycle 2.3-fold quicker than wild-type cells
• at E12 and E14, BrdU incorporation in neuronal progenitor cells is 2-fold less than in wild-type mice
• at E12.5 and E14.5, M-phase cell phospho-histone H3 labeling of neuronal progenitor cells is decreased compared to in wild-type mice
• mice exhibit fluid-filled cystic space contiguous with the lateral ventricle not observed in wild-type mice
• the cerebral cortex is virtually absent compared to in wild-type mice
• at E12 and E14, cortical size and morphology is abnormal compared to in wild-type mice
• in the lateral cortex

behavior/neurological
N
• mice exhibit normal reflexes and motor coordination
• initiation of exploration in an open field is decreased compared to wild-type mice
• mice fail to locate a visible platform in a Morris water maze unlike wild-type mice
• mice fail the visual forepaw reach test unlike wild-type mice
• mice perform poorly in a wire hang test compared with wild-type mice
• mice exhibit irregular and jumpy movements that disrupt their stride and gait unlike wild-type mice
• in an open field

growth/size/body

integument

cellular
• apoptosis in the cortex is increased beginning at E10.5 and peaks at E11 to E12 compared to in wild-type mice
• at E11 and E12, the number of postmitotic neurons is increased compared to in wild-type mice
• at E12, neuronal progenitor cells withdraw from the cell cycle 2.3-fold quicker than wild-type cells
• at E12 and E14, BrdU incorporation in neuronal progenitor cells is 2-fold less than in wild-type mice
• at E12.5 and E14.5, M-phase cell phospho-histone H3 labeling of neuronal progenitor cells is decreased compared to in wild-type mice




Genotype
MGI:4459297
cn4
Allelic
Composition
Pals1tm1Caw/Pals1+
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit a small medial cerebral cortex compared with wild-type mice
• however, the lateral cortex is relatively spared

behavior/neurological
• mice exhibit an intermediate behavioral phenotype compared with homozygous mice

cellular
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit an intermediate phenotype compared with homozygous mice




Genotype
MGI:5428847
cn5
Allelic
Composition
Pals1tm1Caw/Pals1+
Tg(rx3-icre)1Mjam/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tg(rx3-icre)1Mjam mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• mice exhibit lamination defects and pseudorossette formation unlike in control mice




Genotype
MGI:5428846
cn6
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Tg(rx3-icre)1Mjam/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tg(rx3-icre)1Mjam mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• moderately increased apoptosis in the retina at E15.5, E17.5 (8-fold), P0 (3.5-fold) and P35
• moderate-to-severe
• at E17.5, retinal folds are more frequent and prominent compared to in control mice
• at E17.5, retinal exhibit variable thickness unlike in control mice
• at P0, retina exhibit more regular pseudorossettes with mature shape unlike in control mice
• at P14, retinal lamina is locally thinner and severely disorganized compared to in control mice
• during early postnatal stages and progressively worsening at later stages
• thin and disorganized at P0
• less regular appearance compared to in control mice
• locally extruded towards the retinal pigment epithelium side
• completely absent in severely affected adult mice
• at P35 and P60, the photoreceptor layer is either partially or completely devoid unlike in control mice
• some photoreceptors lack both inner and outer segments
• in some mice at P14 and P60
• in some mice at P14 and P60
• cells are reduced in size and are rounded unlike in control cells
• in some mice at P14 and P60
• in some mice at P14 and P60
• pseudorossettes of abnormal rod aggregations contain short and distorted outer and inner segments
• during early postnatal stages and progressively worsening at later stages
• during early postnatal stages and progressively worsening at later stages, mice exhibit degeneration of retinal cells in the photoreceptor, inner nuclear and ganglion cell layers unlike in control mice
• at E17.5, retinal folds are more frequent and prominent compared to in control mice
• at P35, mice exhibit severely reduced electroretinograms compared with control mice
• at P60, mice exhibit reduced or almost undetectable a- and b-waves compared with control mice

cellular
• moderately increased apoptosis in the retina at E15.5, E17.5 (8-fold), P0 (3.5-fold) and P35
• at E15.5 and E17.5, retinas exhibit a disorganized pattern of proliferating cells unlike in control mice
• slightly in the retina at E17.5

immune system
• in the retina at P21, P35 and P60

nervous system
• in the retina at P21, P35 and P60
• in the retina at P21, P35 and P60
• during early postnatal stages and progressively worsening at later stages
• some photoreceptors lack both inner and outer segments
• in some mice at P14 and P60
• in some mice at P14 and P60
• cells are reduced in size and are rounded unlike in control cells
• in some mice at P14 and P60
• in some mice at P14 and P60
• pseudorossettes of abnormal rod aggregations contain short and distorted outer and inner segments
• during early postnatal stages and progressively worsening at later stages

hematopoietic system
• in the retina at P21, P35 and P60

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
Leber congenital amaurosis DOID:14791 OMIM:PS204000
J:184469





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory