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Phenotypes Associated with This Genotype
Genotype
MGI:7526442
Allelic
Composition		 Polr1aem3Knwea/Polr1a+
Genetic
Background		 C57BL/6-Polr1aem3Knwea
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Polr1aem3Knwea mutation (0 available); any Polr1a mutation (95 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
embryo
embryo phenotype ( J:335489 )
• mice born at expected Mendelian ratios and normal sex ratio

growth/size/body
growth/size/body region phenotype ( J:335489 )
• no obvious phenotype

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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Send questions and comments to User Support. 		last database update
01/13/2026
MGI 6.24 		The Jackson Laboratory