About   Help   FAQ
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 (6 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 (114 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





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
12/10/2024
MGI 6.24
The Jackson Laboratory