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Phenotypes Associated with This Genotype
Genotype
MGI:4454286
Allelic
Composition
Agtr1atm1Unc/Agtr1atm1Unc
Agtr1btm1Cof/Agtr1btm1Cof
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Agtr1atm1Unc mutation (1 available); any Agtr1a mutation (38 available)
Agtr1btm1Cof mutation (0 available); any Agtr1b mutation (19 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• fewer than expected mice are present at weaning

cardiovascular system
• mice exhibit media hyperplasia of small and medium vessels unlike wild-type mice
• compared with wild-type mice and Agtr1atm1Unc homozygotes
• Ang II-treated mice exhibit an almost completely blunted increase in mean arterial blood pressure (MAP) and heart rate with an increased time to normalization of MAP compared with similarly treated wild-type mice
• PE-treated mice exhibit a smaller increase in MAP compared with similarly treated wild-type mice

homeostasis/metabolism
• serum levels of Ang II are increased compared to in wild-type mice and Agtr1btm1Cof homozygotes
• angiotensin II (Ang II)-treated mice exhibit an almost completely blunted increase in mean arterial blood pressure (MAP) and heart rate with an increased time to normalization of MAP compared with similarly treated wild-type mice
• phenylephrine (PE)-treated mice exhibit a smaller increase in MAP compared with similarly treated wild-type mice
• however, PE-treated mice exhibit a negative chronotropic response as in wild-type mice

renal/urinary system
• mice exhibit media hyperplasia of small and medium vessels unlike wild-type mice
• mice exhibit cystic dilated cavities unlike wild-type mice
• mice exhibit prominent renal mononuclear infiltrations with partially blastic appearance and a high rate of partial mitosis unlike wild-type mice
• severely dilated Bowman's space
• multifocal and focally extensive glomeruli atrophy
• partially dilated tubular lumina unlike in wild-type mice

growth/size/body
• mice exhibit cystic dilated cavities unlike wild-type mice

immune system
• mice exhibit prominent renal mononuclear infiltrations with partially blastic appearance and a high rate of partial mitosis unlike wild-type mice


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)
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last database update
01/28/2026
MGI 6.24
The Jackson Laboratory