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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ptpn1tm2Bbk
targeted mutation 2, Barbara B Kahn
MGI:3663370
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Ptpn2tm1.1Ttig/Ptpn2tm1.1Ttig
Tg(Nes-cre)1Kln/0
involves: 129S4/SvJae * C57BL/6 * C57BL/6J * SJL MGI:5304839
cn2
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Speer6-ps1Tg(Alb-cre)21Mgn/Speer6-ps1+
involves: 129S4/SvJae * C57BL/6 * DBA/2 MGI:3664093
cn3
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Tg(Nes-cre)1Kln/0
involves: 129S4/SvJae * C57BL/6 * SJL MGI:3664097
cn4
Ptpn1tm2Bbk/Ptpn1+
Tg(Nes-cre)1Kln/0
involves: 129S4/SvJae * C57BL/6 * SJL MGI:3664098


Genotype
MGI:5304839
cn1
Allelic
Composition
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Ptpn2tm1.1Ttig/Ptpn2tm1.1Ttig
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * C57BL/6J * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptpn1tm2Bbk mutation (1 available); any Ptpn1 mutation (36 available)
Ptpn2tm1.1Ttig mutation (0 available); any Ptpn2 mutation (44 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• when fed standard chow
• when fed standard chow
• when fed standard chow
• when fed standard chow, respiratory exchange ratio is decreased in the light cycle and increased in the dark cycle compared with wild-type mice
• glucose homeostasis is improved in mice fed a high-fat diet compared to in wild-type mice
• in fasted mice fed standard chow
• when fed standard chow
• whether fed standard chow or a high-fat diet, leptin-treated mice exhibit enhanced leptin sensitivity compared with wild-type mice

growth/size/body
• when fed standard chow
• when fed standard chow

behavior/neurological
• when fed standard chow




Genotype
MGI:3664093
cn2
Allelic
Composition
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Speer6-ps1Tg(Alb-cre)21Mgn/Speer6-ps1+
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptpn1tm2Bbk mutation (1 available); any Ptpn1 mutation (36 available)
Speer6-ps1Tg(Alb-cre)21Mgn mutation (6 available); any Speer6-ps1 mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
N
• mice with liver-specific Ptpn1 deletion show similar body weight to Ptpn1-sufficient controls




Genotype
MGI:3664097
cn3
Allelic
Composition
Ptpn1tm2Bbk/Ptpn1tm2Bbk
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptpn1tm2Bbk mutation (1 available); any Ptpn1 mutation (36 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• male neuronal Ptpn1-deficient mice show significantly reduced body weight on a high fat diet compared to control Ptpn1-sufficient (undeleted Ptpn1tm2Bbk homozygous) animals between 9 and 17 weeks of age; females show reduced body weight but less markedly so than control female mice on a high fat diet
• neuronal Ptpn1-deficient mice also weigh less than controls when fed a regular chow diet (decrease of 4.5% fat by weight)

homeostasis/metabolism
• mutants have lower fed blood glucose on regular chow and HFD vs controls
• mice display greater oxygen consumption and a decreased respiratory quotient
• male mice at 8-10 weeks of age show enhanced glucose tolerance compared to littermate comtrols
• male mice at 8-10 weeks of age show improved insulin sensitivity compared to littermate controls (J:111969)
• female mice also show significantly improved insulin sensitivity even though weight at 8 weeks of age is the same as controls; insulin sensitivity and glucose tolerance are similar to whole body deficient Ptpn1tm1Bbk mice (J:111969)
• leptin protein is elevated in white adipose tissue of these mice, suggesting that increased serum leptin levels are due to increased adipocyte leptin production
• mutants have lower seurm insulin levels on regular chow and HFD vs controls
• neuronal Ptpn1-deficient mice show increased serum leptin levels (2.3 -fold on a regular chow diet, 4.4-fold higher on a HFD) compared to Ptpn1-undeleted littermates, detected 4 weeks after birth
• adiponectin levels are elevated and resistin levels are unexpectedly normal in mutants on regular and HFD diets
• mice show reduced adiposity after high-fat feeding based on lower carcass triglyceride content compared to controls
• intake is slightly less in mutants than controls (J:111969)
• when treated with leptin twice per day over a 60 hour period, male mice show enhanced suppression of food intake vs controls (J:111969)
• whether fed standard chow or a high-fat diet, leptin-treated mice exhibit enhanced leptin sensitivity compared with wild-type mice (J:179621)

behavior/neurological
• male mice injected with leptin show decreased food intake during the period of treatment compared to controls
• neuronal Ptpn1-deficient mice display increased ambulatory movement vs control

skeleton
• when treated with leptin twice per day over a 60 hour period, male mice show reduced bone mineral density

adipose tissue




Genotype
MGI:3664098
cn4
Allelic
Composition
Ptpn1tm2Bbk/Ptpn1+
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptpn1tm2Bbk mutation (1 available); any Ptpn1 mutation (36 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• male mice heterozygous for Ptpn1tm2Bbk show reduced body weight on a high fat diet between 9 and 17 weeks of age compared to Ptpn1-sufficient controls

homeostasis/metabolism
• mutants have lower fed blood glucose on regular chow and HFD vs controls
• mutants have lower seurm insulin levels on regular chow and HFD vs controls





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory