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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tac1tm1Pig
targeted mutation 1, Pain Investigation Group
MGI:2136279
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Tac1tm1Pig/Tac1tm1Pig B6.129-Tac1tm1Pig MGI:3665459
hm2
Tac1tm1Pig/Tac1tm1Pig involves: 129 * C57BL MGI:3665483
hm3
Tac1tm1Pig/Tac1tm1Pig involves: 129 * C57BL/6J MGI:3665456


Genotype
MGI:3665459
hm1
Allelic
Composition
Tac1tm1Pig/Tac1tm1Pig
Genetic
Background
B6.129-Tac1tm1Pig
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tac1tm1Pig mutation (1 available); any Tac1 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• in depression-related paradigms, mutants are more active in the Porsolt's forced-swimming test and in the tail-suspension test and do not become hyperactive after bulbectomy, indicating decreased depression-related behaviors
• homozygotes are more active and less affected by the light conditions (high light) in the central area of the open-field arena, more active in the open areas of an elevated zero-maze, show reduced latency to feed in the Thatcher-Britton conflict paradigm, and exhibit more social interactions in an aversive environment, all indicators of reduced anxiety




Genotype
MGI:3665483
hm2
Allelic
Composition
Tac1tm1Pig/Tac1tm1Pig
Genetic
Background
involves: 129 * C57BL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tac1tm1Pig mutation (1 available); any Tac1 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
N
• exhibit an intact (normal) vascular permeability response to acute restrain stress




Genotype
MGI:3665456
hm3
Allelic
Composition
Tac1tm1Pig/Tac1tm1Pig
Genetic
Background
involves: 129 * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tac1tm1Pig mutation (1 available); any Tac1 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• display no significant pain responses following subcutaneous formalin injection and have an increased pain threshold in the hotplate test, however react normally in the tail flick assay and the acetic acid-induced writhing tests and show normal dorsal root ganglia





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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
11/12/2024
MGI 6.24
The Jackson Laboratory