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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Lama5tm2Jhm
targeted mutation 2, Jeffrey H Miner
MGI:3613037
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Lama5tm1Jhm/Lama5tm2Jhm
Tg(SFTPC-rtTA)5Jaw/?
Tg(tetO-cre)1Jaw/?
involves: 129S1/Sv * 129X1/SvJ MGI:3613082
cn2
Lama5tm2Jhm/Lama5tm2Jhm
Tg(ACTA1-cre)1Mll/0
involves: 129S1/Sv * 129X1/SvJ MGI:3822742
cn3
Lama4tm1Ktry/Lama4tm1Ktry
Lama5tm2Jhm/Lama5tm2Jhm
Tg(ACTA1-cre)1Mll/0
involves: 129S1/Sv * 129X1/SvJ MGI:3822744
cn4
Lama5tm2Jhm/Lama5tm1Jhm
Tg(NPHS2-cre)295Lbh/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * SJL MGI:5432560
cn5
Lama5tm2Jhm/Lama5tm2Jhm
Tg(NPHS2-cre)295Lbh/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * SJL MGI:5432561


Genotype
MGI:3613082
cn1
Allelic
Composition
Lama5tm1Jhm/Lama5tm2Jhm
Tg(SFTPC-rtTA)5Jaw/?
Tg(tetO-cre)1Jaw/?
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama5tm1Jhm mutation (0 available); any Lama5 mutation (153 available)
Lama5tm2Jhm mutation (0 available); any Lama5 mutation (153 available)
Tg(SFTPC-rtTA)5Jaw mutation (4 available)
Tg(tetO-cre)1Jaw mutation (5 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• animals exposed to doxycycline from E6.5 die within a few hours of birth from respiratory failure

respiratory system
• severely reduced density of lung capillary network in newborn animals exposed to doxycycline from E6.5, associated with reduced VEGF expression in mutant lungs
• areas of thin lung mesenchyme and upregulation of integrin alpha 3 (Lama5 receptor) in newborn animals exposed to doxycycline from E6.5
• areas of thin lung mesenchyme in newborn animals exposed to doxycycline from E6.5
• total lung parenchyma is reduced
• airspaces of newborn animals exposed to doxycycline from E6.5 are filled with amorphous proteinaceous material and cellular debris not seen in controls
• delayed or impaired differentiation of distal alveolar epithelium in newborn animals exposed to doxycycline from E6.5
• mutant peripheral airspaces are often lined with cuboidal epithelium
• virtual absence of alveolar type I cells in newborn animals exposed to doxycycline from E6.5
• significant reduction of alveolar type II cells in newborn animals exposed to doxycycline from E6.5
• enlarged distal airspaces in newborn animals exposed to doxycycline from E6.5
• newborn animals exposed to doxycycline from E6.5 display labored breathing

homeostasis/metabolism
• newborn animals exposed to doxycycline from E6.5 display cyanosis

cardiovascular system
• severely reduced density of lung capillary network in newborn animals exposed to doxycycline from E6.5, associated with reduced VEGF expression in mutant lungs

cellular
• in lungs of newborn animals exposed to doxycycline starting at E6.5
• in lungs of newborn animals exposed to doxycycline from E6.5




Genotype
MGI:3822742
cn2
Allelic
Composition
Lama5tm2Jhm/Lama5tm2Jhm
Tg(ACTA1-cre)1Mll/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama5tm2Jhm mutation (0 available); any Lama5 mutation (153 available)
Tg(ACTA1-cre)1Mll mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• topological maturation of postsynaptic membrane at the neuromuscular junction (NMJ) is delayed by more than a week in the sternomastoid muscle compared to in wild-type mice
• both pre- and postsynaptic NMJ differentiation is delayed compared to in wild-type mice




Genotype
MGI:3822744
cn3
Allelic
Composition
Lama4tm1Ktry/Lama4tm1Ktry
Lama5tm2Jhm/Lama5tm2Jhm
Tg(ACTA1-cre)1Mll/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama4tm1Ktry mutation (1 available); any Lama4 mutation (113 available)
Lama5tm2Jhm mutation (0 available); any Lama5 mutation (153 available)
Tg(ACTA1-cre)1Mll mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die at around 3 months of age

nervous system
• nuscle innervation is incomplete unlike in wild-type mice
• both pre- and postsynaptic neuromuscular junction (NMJ) differentiation is delayed compared to in wild-type mice
• Schwann cell distribution is abnormal secondary to presynaptic defects in the NMJs

behavior/neurological
• mice are weaker than either single homozygous mice

growth/size/body
• mice are smaller than either single homozygous mice




Genotype
MGI:5432560
cn4
Allelic
Composition
Lama5tm2Jhm/Lama5tm1Jhm
Tg(NPHS2-cre)295Lbh/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama5tm1Jhm mutation (0 available); any Lama5 mutation (153 available)
Lama5tm2Jhm mutation (0 available); any Lama5 mutation (153 available)
Tg(NPHS2-cre)295Lbh mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• animals show mild proteinuria early in life (3 weeks), and progress to the nephrotic range of disease
• observed with age
• yellowing of the kidneys is observed with age
• increased thickness, a moth-eated appearance and irregular contours with frequent subepithelial outpocketings are observed at late disease stages
• observed at late stages of disease
• observed at late stages of disease

homeostasis/metabolism
• mice become edematous with age
• animals show mild proteinuria early in life (3 weeks), and progress to the nephrotic range of disease
• observed with age

immune system




Genotype
MGI:5432561
cn5
Allelic
Composition
Lama5tm2Jhm/Lama5tm2Jhm
Tg(NPHS2-cre)295Lbh/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lama5tm2Jhm mutation (0 available); any Lama5 mutation (153 available)
Tg(NPHS2-cre)295Lbh mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some mice live only a few weeks, but others show little sign of disease (nephrotic syndrome) at 8 months





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last database update
05/21/2024
MGI 6.23
The Jackson Laboratory