About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		essa1a
early somite stage arrest 1a
MGI:3578544
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		essa1a/essa1a involves: C3HeB/FeJ * C57BL/6J MGI:3580848


Genotype
MGI:3580848
hm1
Allelic
Composition		 essa1a/essa1a
Genetic
Background		 involves: C3HeB/FeJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging

embryo
incomplete embryo turning ( J:98216 )
• arrest unturned
embryonic growth arrest ( J:98216 )
• arrest unturned

cardiovascular system




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