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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ikbkgtm1Mka
targeted mutation 1, Michael Karin
MGI:3620102
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Ikbkgtm1Mka/Ikbkg+ involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3621818
ot2
Ikbkgtm1Mka/Y involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3621817


Genotype
MGI:3621818
ht1
Allelic
Composition
Ikbkgtm1Mka/Ikbkg+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1Mka mutation (0 available); any Ikbkg mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• approximately 55% of the heterozygous female died by day 9 with a severely runted and anemic appearance
• by day 10, surviving heterozygous females showed a striped fur and a few focal hyperkeratotic lesion
• those survived to 1 month gained weight and looked normal

liver/biliary system
• numbers of apoptotic cells in some heterozygous female mice at E12

growth/size/body
• about half the size and weight of normal siblings by 5 days after birth

behavior/neurological

adipose tissue
• lack of subcutaneous fat in day 9 heterozygous female mice

immune system
• in day 9 heterozygous female
• massive diffuse destruction of cortical lymphocytes
• the white pulp was barely discernible and lacked a marginal zone in day 9 heterozygous female spleen
• a patchy pigmentation that progressed to severe inflammation by 2 days after birth
• generalized erythematous eruption of the skin

cellular
• increased apoptosis of lymphocytes in day 9 thymus and spleen
• dispersed apoptotic keratinocytes in day 3
• large clusters of apoptotic cells in day 9 epidermis
• numbers of apoptotic cells in some heterozygous female mice at E12

hematopoietic system
• in day 9 heterozygous female
• massive diffuse destruction of cortical lymphocytes
• the bone marrow within the sternum was moderately cellular and composed almost entirely of nearly mature granulocytes in day 9 heterozygous female
• no megakaryocytes in the bone marrow within the sternum in day 9 heterozygous female
• the white pulp was barely discernible and lacked a marginal zone in day 9 heterozygous female spleen

integument
• lack of subcutaneous fat in day 9 heterozygous female mice
• dispersed apoptotic keratinocytes in day 3
• large clusters of apoptotic cells in day 9 epidermis
• a patchy pigmentation that progressed to severe inflammation by 2 days after birth
• generalized erythematous eruption of the skin
• sparse hair growth notable by day 5 and later becomes bald
• hyperkeratotic lesions with spotty melanin deposits in certain areas
• lesions were shed by day 8 or 9
• diffuse hyperplasia of the epidermis with multifocal hyperkeratosis and parakeratosis in tail from 8 or 9 day old
• diffuse hyperplasia of the epidermis with multifocal hyperkeratosis and parakeratosis in tail from 8 or 9 day old

endocrine/exocrine glands
• in day 9 heterozygous female
• massive diffuse destruction of cortical lymphocytes

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
Bloch-Sulzberger syndrome DOID:12305 OMIM:308300
J:63054




Genotype
MGI:3621817
ot2
Allelic
Composition
Ikbkgtm1Mka/Y
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1Mka mutation (0 available); any Ikbkg mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

liver/biliary system
• a massive increase in the number of apoptotic cells in E12 hemizygous male embryos
• livers with largely devoid of normal-appearing hepatocytes and contained large hemorrhagic areas

cellular
• a massive increase in the number of apoptotic cells in E12 hemizygous male embryos





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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
05/07/2024
MGI 6.23
The Jackson Laboratory