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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Kat8+
wild type
MGI:2440426
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Kat8em1(IMPC)Mbp/Kat8+ C57BL/6N-Kat8em1(IMPC)Mbp/MbpMmucd MGI:6461361
cn2
Gt(ROSA)26Sortm1(cre/ERT2)Thl/Gt(ROSA)26Sor+
Kat8tm1Thl/Kat8+
involves: 129S1/Sv MGI:3769383
cx3
Atmtm1Led/Atm+
Kat8tm2Thl/Kat8+
involves: 129S1/Sv * 129S6/SvEvTac MGI:3769385
cx4
Atmtm1Led/Atmtm1Led
Kat8tm2Thl/Kat8+
involves: 129S1/Sv * 129S6/SvEvTac MGI:3769386
cx5
Kat8tm2Thl/Kat8+
Trp53tm1Brd/Trp53tm1Brd
involves: 129S1/Sv * 129S7/SvEvBrd MGI:3769387


Genotype
MGI:6461361
ht1
Allelic
Composition
Kat8em1(IMPC)Mbp/Kat8+
Genetic
Background
C57BL/6N-Kat8em1(IMPC)Mbp/MbpMmucd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kat8em1(IMPC)Mbp mutation (1 available); any Kat8 mutation (36 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological

homeostasis/metabolism

immune system

liver/biliary system

renal/urinary system
IMPC - UCD

vision/eye
IMPC - UCD




Genotype
MGI:3769383
cn2
Allelic
Composition
Gt(ROSA)26Sortm1(cre/ERT2)Thl/Gt(ROSA)26Sor+
Kat8tm1Thl/Kat8+
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(cre/ERT2)Thl mutation (0 available); any Gt(ROSA)26Sor mutation (1062 available)
Kat8tm1Thl mutation (0 available); any Kat8 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• following treatment with tamoxifen, cell survival of mouse embryonic fibroblasts following treatment with ionizing radiation is slightly decreased compared to in wild-type cells
• following treatment with tamoxifen, mouse embryonic fibroblasts exhibit a modest decrease in proliferation compared to wild-type
• following treatment with tamoxifen, the number of chromosome abnormalities in mouse embryonic fibroblasts is increased compared to in wild-type cells

homeostasis/metabolism
• following treatment with tamoxifen, cell survival of mouse embryonic fibroblasts following treatment with ionizing radiation is slightly decreased compared to in wild-type cells
• following treatment with tamoxifen, the number of chromosome abnormalities in mouse embryonic fibroblasts is increased compared to in wild-type cells




Genotype
MGI:3769385
cx3
Allelic
Composition
Atmtm1Led/Atm+
Kat8tm2Thl/Kat8+
Genetic
Background
involves: 129S1/Sv * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Atmtm1Led mutation (0 available); any Atm mutation (168 available)
Kat8tm2Thl mutation (0 available); any Kat8 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• only 76% of mice survive the first year




Genotype
MGI:3769386
cx4
Allelic
Composition
Atmtm1Led/Atmtm1Led
Kat8tm2Thl/Kat8+
Genetic
Background
involves: 129S1/Sv * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Atmtm1Led mutation (0 available); any Atm mutation (168 available)
Kat8tm2Thl mutation (0 available); any Kat8 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die earlier than Atmtm1Led homozygotes

growth/size/body
• mice exhibit a modest reduction in weight compared to Atmtm1Led homozygotes




Genotype
MGI:3769387
cx5
Allelic
Composition
Kat8tm2Thl/Kat8+
Trp53tm1Brd/Trp53tm1Brd
Genetic
Background
involves: 129S1/Sv * 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kat8tm2Thl mutation (0 available); any Kat8 mutation (36 available)
Trp53tm1Brd mutation (5 available); any Trp53 mutation (237 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die earlier than Trp53tm1Brdhomozygotes





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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory