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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Rexo2tm1.2Arte
targeted mutation 1.2, TaconicArtemis
MGI:6695998
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Rexo2tm1.2Arte/Rexo2tm1.2Arte involves: C57BL/6N MGI:6695999


Genotype
MGI:6695999
hm1
Allelic
Composition		 Rexo2tm1.2Arte/Rexo2tm1.2Arte
Genetic
Background		 involves: C57BL/6N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rexo2tm1.2Arte mutation (0 available); any Rexo2 mutation (25 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
embryonic lethality between implantation and placentation, complete penetrance ( J:282882 )
• no viable homozygous mice are produced, with embryonic lethality before E8.5

embryo
decreased embryo size ( J:282882 )
• E8.5 embryos are small

cardiovascular system
abnormal heart development ( J:282882 )
• E8.5 embryos lack a heart structure

growth/size/body
decreased embryo size ( J:282882 )
• E8.5 embryos are small




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
09/30/2025
MGI 6.24 		The Jackson Laboratory