Mouse Strain information
APB ID 268
Added 30/04/2006
Last Edited 11/05/2014
Strain name: B6.Cg-Gzmatm1Simn Gzmbtm1Ley/Apb
Nickname: B6.gAB-/-
Strain designation name: B6.Cg-Gzmatm1Simn Gzmbtm1Ley/Apb
Strain Types Mutant strain
Genetic Details Targeted knockout
Mode of Inheritance Recessive
1.  Affected Gene Name: granzyme A  
Chromosome 13
Affected Gene Symbol Gzma
Protein expression of altered gene: Unknown
Genetic alteration of gene: The gene was disrupted by insertion of a neomycin resistance cassette into exon 4 by homologous recombination. Western blot analysis confirmed the absence of protein product and cytochemical analysis demonstrated the absence of enzyme activity in cytotoxic T cells in homozygous mutant animals.
Location on chromosome (bp): 113884035-113891189 bp, - strand (From NCBI annotation of NCBI Build 37)
MGI Gene Accession ID

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Synonyms BLT esterase, Ctla-3, Ctla3, H factor, Hanukah factor, Hf, SE1, serine esterase 1, TSP-1, TSP1
Allele Name targeted mutation 1, Markus M Simon
Allele Symbol Gzmatm1Simn
MGI Allele Accession ID MGI:2449926
Allele synonyms: GrzA-, gzm A-, gzmA-
2.  Affected Gene Name: granzyme B  
Chromosome 14
Affected Gene Symbol Gzmb
Protein expression of altered gene: Nil
Genetic alteration of gene: A PGK-neomycin resistance cassette replaced a 350bp AvrII fragment starting within the 5' untranslated region (22 bp upstream from the initiation codon), extending through exon 1 and part of intron 1.
Location on chromosome (bp): 56877693-56881097 bp, - strand (From NCBI annotation of NCBI Build 37)
MGI Gene Accession ID

Please also use this link to determine if other mutants have been registered with MGI (Mouse Genome Informatics)

Synonyms CCP-1/C11, CCP1, Ctla-1, Ctla1
Allele Name targeted mutation 1, Timothy J Ley
Allele Symbol Gzmbtm1Ley
MGI Allele Accession ID MGI:1857156
Allele synonyms: Granzyme B-, GrB KO, GrzB-, gzmB-, Gzmb-/+PGK-neo
Mutant Construction Technique None
Phenotype Homozygous State Increased sensitivity to induced morbidity/mortality * WNV-infected double homozygotes start to die at day 10 post-infection (p.i.); wild-type mice die between 10-13 days p.i. * 70% of WNV-infected double homozygotes versus 29% of wild-type succumb to encephalitis by day 16 p.i. Immune system phenotype * double homozygotes develop a normal contact hypersensitivity (CHS) response (based on increase in ear thickness) to trinitrophenyl (TNP) relative to wild-type mice Increased susceptibility to parasitic infection: * decreased clearance and survival after infection with Trypanosoma cruzi Increased susceptibility to viral infection: * double homozygotes display increased susceptibility to West Nile flavivirus (WNV) infection relative to wild-type * double mutants show a higher level of infectious virus in brain relative to wild-type or Prf1tm1Sdz mice at the same time point
Genetic Background Currently Maintained C57BL/6
Strain identification
How is this strain characterised? Genotyping
PCR protocols FasAB_GranzymeB(ASD)
Fertility and Strain maintenance
Fertility and Strain maintenance
Relevant bibliographic / database references
Strain Specific References
Other Related References
General information
Associated IP rights? No
Does it Model a Human Condition? Unknown
Applicable Research Areas Immunology and inflammation
Cell biology
  • T Cell
  • Cytotoxic
  • Serine Proteinase
  • Natural Killer Calls
  • Infection
Is the strain available in any form to other researchers Yes
APB stock stored as: Cryopreserved sperm (from 5 mice)

APB stock genotyped verified by: The depositor
Are live mice available? No
MTA needs to be signed? Yes



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