About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Snap23tm1.1Paro
targeted mutation 1.1, Paul A Roche
MGI:4439388
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Snap23tm1.1Paro/Snap23tm1.1Paro involves: 129S1/Sv MGI:4439391
hm2
 		Snap23tm1.1Paro/Snap23tm1.1Paro involves: 129S1/Sv * C57BL/6 MGI:5006858


Genotype
MGI:4439391
hm1
Allelic
Composition		 Snap23tm1.1Paro/Snap23tm1.1Paro
Genetic
Background		 involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Snap23tm1.1Paro mutation (0 available); any Snap23 mutation (32 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging




Genotype
MGI:5006858
hm2
Allelic
Composition		 Snap23tm1.1Paro/Snap23tm1.1Paro
Genetic
Background		 involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Snap23tm1.1Paro mutation (0 available); any Snap23 mutation (32 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
embryonic lethality before implantation, complete penetrance ( J:171444 )
• blastocysts recovered at E3.5 are grossly abnormal and appear to be dying

embryo
abnormal blastocyst morphology ( J:171444 )
• at E3.5 are grossly abnormal and have not expanded properly




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
09/30/2025
MGI 6.24 		The Jackson Laboratory