LoxP sites were inserted 5' and 3' of the keratin type II gene cluster, encompassing 0.68 Mb, 26 type II genes and 1 keratin type I gene (Krt18). Cre mediated recombination deleted the entire cluster leaving a single loxP site flanked by 3' and 5' hprt mini-genes and the the tyrosinase (Tyr) and agouti (A) coat color genes. The absence of the transcripts and gene products was confirmed by RT-PCR and immunofluorescence microscopy in homozygous embryos. Due to the absence of all type II keratins, all the type I keratins were sensitive to proteolysis, so homozygous mice lack all 54 keratin proteins. ES cells carrying Krt1ctm1Tmm and Igs11tm1Tmm and were used to create this deletion. (J:153804)

Basic Information

Allele
Strain of Origin
Allele Type
Mutation
Inheritance
Gene Expression
Related Disease
Reference
129S7/SvEvBrd-Hprt1b-m2
Targeted
Insertion, Intergenic deletion, Intragenic deletion
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6

Phenotypes

Legend:
hm: homozygous
ht: heterozygous
cn: conditional genotype
cx: complex: > 1 genome feature
tg: involves transgenes
ot: other: hemizygous, indeterminate,...
(F): Female
(M): Male
phenotype observed
N: normal phenotype
(#): related diseases count
Phenotypes:
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Phenotypes

References Literature

Title
PMID
Journal
Year
IF
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