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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Smdt1+
wild type
MGI:5469185
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Smdt1tm1b(EUCOMM)Wtsi/Smdt1+ C57BL/6N-Smdt1tm1b(EUCOMM)Wtsi/Bay MGI:6263525
ht2
Smdt1em1Fink/Smdt1+ involves: C57BL/6J * CBA MGI:6457372
cx3
Micu1em#Fink/Micu1em#Fink
Smdt1em1Fink/Smdt1+
involves: C57BL/6J * C57BL/6N * CBA MGI:6457369
cx4
Micu1em#Fink/Micu1em#Fink
Smdt1em2Fink/Smdt1+
involves: C57BL/6J * C57BL/6N * CBA MGI:6457370


Genotype
MGI:6263525
ht1
Allelic
Composition
Smdt1tm1b(EUCOMM)Wtsi/Smdt1+
Genetic
Background
C57BL/6N-Smdt1tm1b(EUCOMM)Wtsi/Bay
Cell Lines EPD0486_1_A05
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Smdt1tm1b(EUCOMM)Wtsi mutation (0 available); any Smdt1 mutation (10 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
IMPC - BCM




Genotype
MGI:6457372
ht2
Allelic
Composition
Smdt1em1Fink/Smdt1+
Genetic
Background
involves: C57BL/6J * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Smdt1em1Fink mutation (0 available); any Smdt1 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
N
• mitochondrial calcium uptake is normal




Genotype
MGI:6457369
cx3
Allelic
Composition
Micu1em#Fink/Micu1em#Fink
Smdt1em1Fink/Smdt1+
Genetic
Background
involves: C57BL/6J * C57BL/6N * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Micu1em#Fink mutation (0 available); any Micu1 mutation (43 available)
Smdt1em1Fink mutation (0 available); any Smdt1 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal survival

cellular
• liver mitochondria exhibit slightly impaired calcium gate-keeping function with 2-fold higher rates of calcium uptake at low extra-mitochondrial calcium levels and reduced rates of calcium uptake at high calcium concentrations compared with control mice
• however, brain matrix calcium levels are normal

behavior/neurological
• improved compared to Micu1em#Fink homozygotes
• improved compared to Micu1em#Fink homozygotes

immune system
• improved compared to Micu1em#Fink homozygotes

growth/size/body
N
• mice exhibit normal body weight

hematopoietic system
• improved compared to Micu1em#Fink homozygotes

muscle
N
• mice exhibit normal skeletal muscles

nervous system
N
• mice exhibit normal cerebellar morphology




Genotype
MGI:6457370
cx4
Allelic
Composition
Micu1em#Fink/Micu1em#Fink
Smdt1em2Fink/Smdt1+
Genetic
Background
involves: C57BL/6J * C57BL/6N * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Micu1em#Fink mutation (0 available); any Micu1 mutation (43 available)
Smdt1em2Fink mutation (0 available); any Smdt1 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal survival

growth/size/body
N
• mice exhibit normal body weight





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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
01/28/2026
MGI 6.24
The Jackson Laboratory