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Phenotypes Associated with This Genotype
Genotype
MGI:5788573
Allelic
Composition		 Or8a1tm43(Or8a1)Mom/Or8a1tm27Mom
Genetic
Background		 involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Or8a1tm27Mom mutation (1 available); any Or8a1 mutation (69 available)
Or8a1tm43(Or8a1)Mom mutation (1 available); any Or8a1 mutation (69 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
nervous system
abnormal olfactory bulb morphology ( J:233447 )
• compartmentalized glomeruli are often found, with the RFP+ axons and GFP+ axons separating into separate glomeruli, indicating a change in axonal identity through doubled expression of OLFR151 levels in the GFP+ axons.

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
01/28/2026
MGI 6.24 		The Jackson Laboratory