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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Plxnb1+
wild type
MGI:2440121
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
 		Plxnb1tm1.1Ltam/Plxnb1+
Plxnb2tm1Matl/Plxnb2+ 		involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 MGI:5811331
cx2
 		Plxnb1tm1.1Ltam/Plxnb1+
Plxnb2tm1Matl/Plxnb2tm1Matl 		involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 MGI:5811340


Genotype
MGI:5811331
cx1
Allelic
Composition		 Plxnb1tm1.1Ltam/Plxnb1+
Plxnb2tm1Matl/Plxnb2+
Genetic
Background		 involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Plxnb1tm1.1Ltam mutation (2 available); any Plxnb1 mutation (107 available)
Plxnb2tm1Matl mutation (2 available); any Plxnb2 mutation (91 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
mortality/aging ( J:168399 )
N
• mice are viable

reproductive system
reduced fertility ( J:168399 )
• mice are able to produce offspring although litters are very small




Genotype
MGI:5811340
cx2
Allelic
Composition		 Plxnb1tm1.1Ltam/Plxnb1+
Plxnb2tm1Matl/Plxnb2tm1Matl
Genetic
Background		 involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Plxnb1tm1.1Ltam mutation (2 available); any Plxnb1 mutation (107 available)
Plxnb2tm1Matl mutation (2 available); any Plxnb2 mutation (91 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging




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