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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ctsl+
wild type
MGI:2430334
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Ctsltm1Alpk/Ctsl+ involves: 129P2/OlaHsd * C57BL/6 MGI:3584504
ht2
Ctsltm1.2Thre/Ctsl+ involves: C57BL/6 * C57BL/6N MGI:5810300
ht3
Ctsltm1Cptr/Ctsl+ NOD.129P2-Ctsltm1Cptr MGI:4420986


Genotype
MGI:3584504
ht1
Allelic
Composition
Ctsltm1Alpk/Ctsl+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctsltm1Alpk mutation (0 available); any Ctsl mutation (32 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• the amount of trabecular bone is significantly reduced; however following ovariectomy the extent of bone loss is reduced in heterozygotes compared to wild-type mice (reduction in bone volume of 36.17% compared to 51.7% in wild-type)
• the mineralized cartilage zone is disorganized

integument
• at 9 months of age, heterozygous females have a bald area covering the central dorsal surface and males have small bald patches




Genotype
MGI:5810300
ht2
Allelic
Composition
Ctsltm1.2Thre/Ctsl+
Genetic
Background
involves: C57BL/6 * C57BL/6N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctsltm1.2Thre mutation (0 available); any Ctsl mutation (32 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
N
• at P30, mice exhibit normal coat appearance




Genotype
MGI:4420986
ht3
Allelic
Composition
Ctsltm1Cptr/Ctsl+
Genetic
Background
NOD.129P2-Ctsltm1Cptr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctsltm1Cptr mutation (2 available); any Ctsl mutation (32 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• insulitis scores for diabetic animals are similar to diabetic NOD controls
• 55% of female mice exhibit blood glucose levels of greater than 250 mg/dl between 4-6 months of age as compared to 69% of NOD controls
• adoptive transfer of GITRhi-depleted Treg cells into NOD-Prkdcscid host results in a diabetes incidence of 41.7%

homeostasis/metabolism
• 55% of female mice exhibit blood glucose levels of greater than 250 mg/dl between 4-6 months of age as compared to 69% of NOD controls

endocrine/exocrine glands
• insulitis scores for diabetic animals are similar to diabetic NOD controls





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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
01/06/2026
MGI 6.24
The Jackson Laboratory