About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ikbkgtm1.1Mpa
targeted mutation 1.1, Manolis Pasparakis
MGI:2679024
Summary 9 genotypes


Genotype
MGI:5293401
cn1
Allelic
Composition
Cyldtm1.1Mpa/Cyldtm1.1Mpa
Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa
Tg(Vil1-cre)997Gum/0
Genetic
Background
B6.Cg-Cyldtm1.1Mpa Ikbkgtm1.1Mpa Tg(Vil1-cre)997Gum
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cyldtm1.1Mpa mutation (0 available); any Cyld mutation (44 available)
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Vil1-cre)997Gum mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• as in Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa Tg(Vil-cre)997Gum

endocrine/exocrine glands

immune system
• as in Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa Tg(Vil-cre)997Gum




Genotype
MGI:5293402
cn2
Allelic
Composition
Cyldtm1.1Mpa/Cyldtm1.1Mpa
Ikbkgtm1.1Mpa/Y
Tg(Vil1-cre)997Gum/0
Genetic
Background
B6.Cg-Cyldtm1.1Mpa Ikbkgtm1.1Mpa Tg(Vil1-cre)997Gum
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cyldtm1.1Mpa mutation (0 available); any Cyld mutation (44 available)
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Vil1-cre)997Gum mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• as in Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa Tg(Vil-cre)997Gum

endocrine/exocrine glands

immune system
• as in Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa Tg(Vil-cre)997Gum




Genotype
MGI:5293403
cn3
Allelic
Composition
Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa
Tg(Vil1-cre)997Gum/0
Genetic
Background
B6.Cg-Ikbkgtm1.1Mpa Tg(Vil1-cre)997Gum
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Vil1-cre)997Gum mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• severe and chronic

endocrine/exocrine glands

immune system
• severe and chronic




Genotype
MGI:5293406
cn4
Allelic
Composition
Ikbkgtm1.1Mpa/Y
Tg(Vil1-cre)997Gum/0
Genetic
Background
B6.Cg-Ikbkgtm1.1Mpa Tg(Vil1-cre)997Gum
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Vil1-cre)997Gum mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• severe and chronic

endocrine/exocrine glands

immune system
• severe and chronic




Genotype
MGI:3851695
cn5
Allelic
Composition
Cd19tm1(cre)Cgn/Cd19+
Ikbkgtm1.1Mpa/Y
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd19tm1(cre)Cgn mutation (11 available); any Cd19 mutation (60 available)
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• B cell turnover over a one week period is twice that of controls
• immature B cell numbers in the spleen are reduced by about a third
• there is a 2- to 4- fold reduction in the number of mature recirculating B cells found in the bone marrow
• the IgMlowIgD+ mature B cell population is strongly diminished in the spleen by 3- to 4- fold
• B cell numbers in the lymph nodes are also strongly reduced
• B-1 B cell numbers are strongly decreased in the peritoneum cavity
• follicular B cells are the most diminished B cell population in the spleen
• marginal zone B cell numbers are reduced about 4-fold

hematopoietic system
• B cell turnover over a one week period is twice that of controls
• immature B cell numbers in the spleen are reduced by about a third
• there is a 2- to 4- fold reduction in the number of mature recirculating B cells found in the bone marrow
• the IgMlowIgD+ mature B cell population is strongly diminished in the spleen by 3- to 4- fold
• B cell numbers in the lymph nodes are also strongly reduced
• B-1 B cell numbers are strongly decreased in the peritoneum cavity
• follicular B cells are the most diminished B cell population in the spleen
• marginal zone B cell numbers are reduced about 4-fold

cellular
• B cell turnover over a one week period is twice that of controls




Genotype
MGI:3687508
cn6
Allelic
Composition
Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa
Cd79atm1(cre)Reth/Cd79a+
Genetic
Background
involves: BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd79atm1(cre)Reth mutation (3 available); any Cd79a mutation (24 available)
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• there is a pronounced block in B cell development at transition stage 1 in the spleen
• mice show dramatic reduction in peripheral B cell numbers
• numbers of mature B cells are reduced to 10% of levels in controls

hematopoietic system
• there is a pronounced block in B cell development at transition stage 1 in the spleen
• mice show dramatic reduction in peripheral B cell numbers
• numbers of mature B cells are reduced to 10% of levels in controls




Genotype
MGI:2679026
cn7
Allelic
Composition
Ikbkgtm1.1Mpa/Y
Tg(Cd4-cre)1Cwi/0
Genetic
Background
involves: C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Cd4-cre)1Cwi mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• increase in the numbers of apoptotic CD8+/HASlow/- and CD4+/HASlow/- mature thymocytes
• spleen and lymph nodes are nearly devoid of T cells
• only a mild reduction in the CD4 single-positive cells in the thymus
• 50% reduction in CD8 single-positive cells in the thymus
• loss of single-positive thymocytes during final maturation stages in the thymus

hematopoietic system
• increase in the numbers of apoptotic CD8+/HASlow/- and CD4+/HASlow/- mature thymocytes
• spleen and lymph nodes are nearly devoid of T cells
• only a mild reduction in the CD4 single-positive cells in the thymus
• 50% reduction in CD8 single-positive cells in the thymus
• loss of single-positive thymocytes during final maturation stages in the thymus

cellular
• increase in the numbers of apoptotic CD8+/HASlow/- and CD4+/HASlow/- mature thymocytes




Genotype
MGI:3700375
cn8
Allelic
Composition
Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa
Tg(Alb1-cre)7Gsc/0
Genetic
Background
involves: C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Alb1-cre)7Gsc mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
liver/biliary system
• 8 week old mice show signs of steatohepatitis in the liver, characterized by immune cell infiltration into the parenchyma
• in 8-week old mice, hepatocytes show features of large-cell dysplasia with strong anisokaryosis; large areas of irregularly shaped glycogen deposits are detected
• at 6 months, livers show macroscopic nodules
• focal areas of lipid accumulation and low-grade dysplastic nodules with expansive growth are observed
• at 6 months, hepatocytes show lipid deposition and ballooning
• in 8-week old mice, hepatocytes show features of large-cell dysplasia with strong anisokaryosis; large areas of irregularly shaped glycogen deposits are detected
• mitochondria of hepatocytes appear swollen and display a reduction in mitochondrial crests compared to wild-type at 8 weeks of age
• at 6 months, mice show signs of steatosis and increased lipid deposition in hepatocytes
• multiple tumors are found in livers of 12-month old males; malignant liver tumors are present in all mice examined
• average number of tumors per mouse is 5.75 with average size of 8.58 mm
• tumors show expansive growth, increased cellularity, broad trabecular growth pattern in 4 to 6 layers, eosinophilia, higher cytoplasmic index compared to non malignant areas, and complete absence of portal tracts
• tumors show increased proliferation and higher mitotic indices (~1.44 per high-power field)
• tumors at 9 months show dysplastic foci and nodules

neoplasm
• multiple tumors are found in livers of 12-month old males; malignant liver tumors are present in all mice examined
• average number of tumors per mouse is 5.75 with average size of 8.58 mm
• tumors show expansive growth, increased cellularity, broad trabecular growth pattern in 4 to 6 layers, eosinophilia, higher cytoplasmic index compared to non malignant areas, and complete absence of portal tracts
• tumors show increased proliferation and higher mitotic indices (~1.44 per high-power field)
• tumors at 9 months show dysplastic foci and nodules

immune system
• cytokine expression is upregulated in mutants
• upon LPS injection, NF kappa b activation is completely absent
• following exposure to LPS, mice exhibit increased liver failure and hepatocyte apoptosis compared to similarly treated wild-type mice
• 8 week old mice show signs of steatohepatitis in the liver, characterized by immune cell infiltration into the parenchyma
• in 8-week old mice, hepatocytes show features of large-cell dysplasia with strong anisokaryosis; large areas of irregularly shaped glycogen deposits are detected

cellular
• mitochondria of hepatocytes appear swollen and display a reduction in mitochondrial crests compared to wild-type at 8 weeks of age
• 8-week old mice show an increase in apoptotic cells in the liver
• livers show increased proliferation
• at 8 weeks, there is a significant increase in progenitor cells and activation of oval cells in the liver

homeostasis/metabolism
• mice show a decrease in spontaneous serum glucose levels compared to controls
• mice show elevated serum levels of alanine aminotransferase (ALT) at 3 weeks, indicative of hepatocyte damage; ALT levels are further increased at 8 weeks
• mice show increased JNK kinase activity

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
steatotic liver disease DOID:9452 OMIM:228100
J:118336




Genotype
MGI:3700376
cn9
Allelic
Composition
Faddtm1Mpa/Faddtm1Mpa
Ikbkgtm1.1Mpa/Ikbkgtm1.1Mpa
Tg(Alb1-cre)7Gsc/0
Genetic
Background
involves: C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Faddtm1Mpa mutation (0 available); any Fadd mutation (18 available)
Ikbkgtm1.1Mpa mutation (1 available); any Ikbkg mutation (16 available)
Tg(Alb1-cre)7Gsc mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• spontaneous serum ALT levels are decreased compared to single Ikbkg mutants at 8 weeks of age
• mice show increased JNK kinase activity

immune system
• completely absent compared to single Ikbkg mutants at 8 weeks of age

liver/biliary system
N
• liver inflammation, hepatocyte apoptosis, increased hepatocyte proliferation, and focal lipid accumulation are inhibited in mutants compared to Ikbkg single mutants
• completely absent compared to single Ikbkg mutants at 8 weeks of age

cellular
• double mutants are protected from LPS-induced hepatocyte apoptosis





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
12/10/2024
MGI 6.24
The Jackson Laboratory