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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Cacna1ctm3Hfm
targeted mutation 3, Franz Hofmann
MGI:2674119
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Cacna1ctm3Hfm/Cacna1ctm3Hfm
Tg(Ins2-cre)25Mgn/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * DBA MGI:2674123
cn2
Cacna1ctm3Hfm/Cacna1ctm4Hfm
A1cfTg(Myh6-cre/Esr1*)1Jmk/A1cf+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * FVB/N MGI:5291995


Genotype
MGI:2674123
cn1
Allelic
Composition
Cacna1ctm3Hfm/Cacna1ctm3Hfm
Tg(Ins2-cre)25Mgn/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * DBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cacna1ctm3Hfm mutation (1 available); any Cacna1c mutation (144 available)
Tg(Ins2-cre)25Mgn mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• intraperitoneal glucose challenge in fed mice results in a slight reduction in plasma insulin levels and marked reduction of glucose-induced first-phase insulin secretion
• glucose-induced first phase (less than 5 min) insulin secretion in in situ pancreatic perfusions is inhibited by 78%
• glucose-induced insulin secretion in isolated islets is much lower than in control islets
• mutants exhibit a slight hyperglycemia under basal and fasted conditions
• intraperitoneal glucose challenge in fed mice results in a slight reduction in plasma insulin levels and marked reduction of glucose-induced first-phase insulin secretion
• intraperitoneal glucose challenge in fed mice shows impaired glucose tolerance

endocrine/exocrine glands
• calcium currents are reduced in beta cells from mutant mice
• exocytosis in response to the initial depolarizations is reduced in single beta cells
• intraperitoneal glucose challenge in fed mice results in a slight reduction in plasma insulin levels and marked reduction of glucose-induced first-phase insulin secretion
• glucose-induced first phase (less than 5 min) insulin secretion in in situ pancreatic perfusions is inhibited by 78%
• glucose-induced insulin secretion in isolated islets is much lower than in control islets




Genotype
MGI:5291995
cn2
Allelic
Composition
Cacna1ctm3Hfm/Cacna1ctm4Hfm
A1cfTg(Myh6-cre/Esr1*)1Jmk/A1cf+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
A1cfTg(Myh6-cre/Esr1*)1Jmk mutation (5 available); any A1cf mutation (39 available)
Cacna1ctm3Hfm mutation (1 available); any Cacna1c mutation (144 available)
Cacna1ctm4Hfm mutation (0 available); any Cacna1c mutation (144 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die within 3 weeks of tamoxifen treatment

muscle
• vetricular cardiomyocytes from tamoxifen-treated mice exhibit reduced current-voltage relation of current compared with cells from control mice





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last database update
11/19/2024
MGI 6.24
The Jackson Laboratory