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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Lama1tm1Olf
targeted mutation 1, Olivier Lefebvre
MGI:3611212
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Lama1tm1Olf/Lama1tm1Olf involves: 129S2/SvPas MGI:3715790
cn2
Lama1tm1Olf/Lama1tm1Olf
Edil3Tg(Sox2-cre)1Amc/Edil3+
involves: 129S2/SvPas * C57BL/6J * CBA * CD-1 * Swiss Webster MGI:4456114


Genotype
MGI:3715790
hm1
Allelic
Composition
Lama1tm1Olf/Lama1tm1Olf
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama1tm1Olf mutation (0 available); any Lama1 mutation (186 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice have no overt phenotype




Genotype
MGI:4456114
cn2
Allelic
Composition
Lama1tm1Olf/Lama1tm1Olf
Edil3Tg(Sox2-cre)1Amc/Edil3+
Genetic
Background
involves: 129S2/SvPas * C57BL/6J * CBA * CD-1 * Swiss Webster
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Edil3Tg(Sox2-cre)1Amc mutation (5 available); any Edil3 mutation (42 available)
Lama1tm1Olf mutation (0 available); any Lama1 mutation (186 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

The inner limiting membrane does not form in Lama1tm1Olf/Lama1tm1Olf Edil3Tg(Sox2-cre)1Amc/0 mice

mortality/aging
N
• normal lifespan

growth/size/body
• 13% reduction in birth weight, but by 8 weeks of age this weight difference is no longer observed

reproductive system
N
• normal fertility

vision/eye
• the vitreal vessels remain endostatin positive throughout adulthood
• at 1 year of age eye diameters are 11% larger than those of controls
• ophthalmoscopy shows vitreal fibroplasia, vessel tortuosity, and retinal spots that are larger and more prominent than those in nmf223 homozygotes
• larger vessels lie within the vitreous and cover the entire retinal surface, and there is a lack of primary plexus veins and arteries within the retina
• intermediate and deep vascular plexi are present in the retina but not as dense as those of nmf223 homozygotes
• Muller cells lacking end-feet with misguided and shortened processes are found
• the inner limiting membrane does not form properly
• peripheral loss of cells in the inner plexiform and both nuclear layers of the retina, which is more severe and has an earlier onset than that in nmf223 homozygotes

cardiovascular system
• larger vessels lie within the vitreous and cover the entire retinal surface, and there is a lack of primary plexus veins and arteries within the retina
• intermediate and deep vascular plexi are present in the retina but not as dense as those of nmf223 homozygotes

nervous system
• Muller cells lacking end-feet with misguided and shortened processes are found





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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
04/23/2024
MGI 6.23
The Jackson Laboratory