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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rack1tm1Sbif
targeted mutation 1, Stefano Biffo
MGI:5660834
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Rack1tm1Sbif/Rack1tm1Sbif C57BL/6-Rack1tm1Sbif MGI:5779955
ht2
Rack1tm1Sbif/Rack1+ C57BL/6-Rack1tm1Sbif MGI:5779956


Genotype
MGI:5779955
hm1
Allelic
Composition
Rack1tm1Sbif/Rack1tm1Sbif
Genetic
Background
C57BL/6-Rack1tm1Sbif
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rack1tm1Sbif mutation (1 available); any Rack1 mutation (56 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• homozygotes die at gastrulation; mutant embryos are resorbed at E9.5

embryo
• disorganized implanted blastocysts with vacuolar areas are observed at E6.5
• absence of the early egg cylinder at E6.5




Genotype
MGI:5779956
ht2
Allelic
Composition
Rack1tm1Sbif/Rack1+
Genetic
Background
C57BL/6-Rack1tm1Sbif
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rack1tm1Sbif mutation (1 available); any Rack1 mutation (56 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• white belly spot in adult mice
• hypopigmented paws in adult mice
• hypopigmented tail tips in adult mice

growth/size/body
• transient decrease in body weight in females but not males at P11
• transient decrease in head-anus length in females but not males at P11
• transient growth delay in young females, not seen in males
• however, no gross alterations in embryonic development

homeostasis/metabolism
• reduced translation (protein synthesis) in response to stimulation with insulin or the PKC agonist PMA in heterozygous mutant MEFs relative to wild-type MEFs
• mildly increased 80S/polysome ratio in heterozygous mutant livers relative to wild-type livers

limbs/digits/tail
• hypopigmented tail tips in adult mice

integument
• white belly spot in adult mice
• hypopigmented paws in adult mice
• hypopigmented tail tips in adult mice

cellular
• reduced translation (protein synthesis) in response to stimulation with insulin or the PKC agonist PMA in heterozygous mutant MEFs relative to wild-type MEFs
• mildly increased 80S/polysome ratio in heterozygous mutant livers relative to wild-type livers





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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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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory