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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Spop+
wild type
MGI:2437935
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Spoptm1b(KOMP)Wtsi/Spop+ C57BL/6N-Spoptm1b(KOMP)Wtsi/Tcp MGI:5757763
ht2
SpopGt(BGB118)Byg/Spop+ involves: 129P2/OlaHsd * C57BL/6 MGI:4837258
cx3
Pdx1tm1Cvw/Pdx1+
SpopGt(BGB118)Byg/Spop+
involves: 129P2/OlaHsd * 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:4837259


Genotype
MGI:5757763
ht1
Allelic
Composition
Spoptm1b(KOMP)Wtsi/Spop+
Genetic
Background
C57BL/6N-Spoptm1b(KOMP)Wtsi/Tcp
Cell Lines EPD0205_5_D01
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spoptm1b(KOMP)Wtsi mutation (1 available); any Spop mutation (35 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological

endocrine/exocrine glands
IMPC - TCP

hematopoietic system
IMPC - TCP

homeostasis/metabolism

immune system
IMPC - TCP

nervous system




Genotype
MGI:4837258
ht2
Allelic
Composition
SpopGt(BGB118)Byg/Spop+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
SpopGt(BGB118)Byg mutation (0 available); any Spop mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
N
• beta cell size is normal
• beta cell replication is increased compared to in wild-type mice
• however, beta cell replication and apoptosis are balanced

homeostasis/metabolism
N
• mice exhibit normal glucose homeostasis

cellular




Genotype
MGI:4837259
cx3
Allelic
Composition
Pdx1tm1Cvw/Pdx1+
SpopGt(BGB118)Byg/Spop+
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pdx1tm1Cvw mutation (1 available); any Pdx1 mutation (37 available)
SpopGt(BGB118)Byg mutation (0 available); any Spop mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
N
• beta cell mass and the distribution of islet size are normalized unlike in either single heterozygote
• mice do not exhibit beta cell apoptosis unlike either single heterozygote
• beta cell size is decreased compared to in wild-type mice or either single heterozygote
• endoplasmic reticulum stress is reduced compared to in Pdx1tm1Cvw heterozygote
• beta cell replication is increased compared to in wild-type mice
• glucose-stimulated insulin secretion is reduced compared to in wild-type mice but not as severely as in Pdx1tm1Cvw heterozygote

homeostasis/metabolism
• glucose-stimulated insulin secretion is reduced compared to in wild-type mice but not as severely as in Pdx1tm1Cvw heterozygote
• compared with Pdx1tm1Cvw heterozygote





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last database update
01/28/2026
MGI 6.24
The Jackson Laboratory