About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Thrb+
wild type
MGI:2432230
Summary 10 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Thrbtm1Df/Thrb+ either: B6.129S1-Thrbtm1Df or (involves: 129S1/Sv * C57BL/6J) MGI:3699105
ht2
Thrbtm6.1Few/Thrb+ involves: 129 * C57BL/6 MGI:3849882
ht3
Thrbtm5Few/Thrb+ involves: 129 * C57BL/6 MGI:3608673
ht4
Thrbtm1.1Syc/Thrb+ involves: 129S6/SvEvTac * C57BL/6J * NIH Black Swiss MGI:3721432
ht5
Thrbtm1.1Syc/Thrb+ involves: 129S6/SvEvTac * FVB/N * NIH Black Swiss MGI:3715607
ht6
Thrbtm1.1Syc/Thrb+ involves: 129S6/SvEvTac * NIH Black Swiss MGI:5528982
ht7
Thrbtm2Few/Thrb+ involves: 129X1/SvJ * C57BL/6 MGI:3588064
cn8
Thrbtm1Mkni/Thrb+
Hprt1tm1(TG-cre)1Sasr/Y
involves: 129/Sv * C57BL/6 MGI:5576934
cx9
Thratm1Ven/Thratm1Ven
Thrbtm1Df/Thrb+
B6.129-Thratm1Ven Thrbtm1Df MGI:3698828
cx10
Thratm3Ven/Thra+
Thrbtm1Df/Thrb+
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6NCrl MGI:3606079


Genotype
MGI:3699105
ht1
Allelic
Composition
Thrbtm1Df/Thrb+
Genetic
Background
either: B6.129S1-Thrbtm1Df or (involves: 129S1/Sv * C57BL/6J)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm1Df mutation (1 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
N
• unlike homozygotes, heterozygotes of either genetic background are resistant to audiogenic seizures




Genotype
MGI:3849882
ht2
Allelic
Composition
Thrbtm6.1Few/Thrb+
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm6.1Few mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
N
• thyroid-stimulating hormone serum levels are normal
• 2-fold higher than in wild-type mice
• 2-fold higher than in wild-type mice

growth/size/body

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
thyroid hormone resistance syndrome DOID:11633 OMIM:188570
OMIM:274300
J:150008




Genotype
MGI:3608673
ht3
Allelic
Composition
Thrbtm5Few/Thrb+
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm5Few mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• T4 levels are increased about 2-fold compared to wild-type mice

endocrine/exocrine glands
• thyroid weight is increased compared to wild-type mice but not as much as in homozygous mice




Genotype
MGI:3721432
ht4
Allelic
Composition
Thrbtm1.1Syc/Thrb+
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6J * NIH Black Swiss
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm1.1Syc mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
N
• at 3 weeks or 4 months of age, heterozygotes display normal auditory function, with no significant differences in ABR threholds in response to click, 8-, 16- and 32-kHz pure tone stimuli relative to wild-type mice




Genotype
MGI:3715607
ht5
Allelic
Composition
Thrbtm1.1Syc/Thrb+
Genetic
Background
involves: 129S6/SvEvTac * FVB/N * NIH Black Swiss
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm1.1Syc mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Histology of thyroid glands of wild-type, Thrbtm1.1Syc/Thrb+ and Thrbtm1.1Syc/Thrbtm1.1Syc mice.

endocrine/exocrine glands
• increase in the size of individual follicles of the thyroid gland
• thyroid gland is about 2.4-fold larger than in wild-type
• the increase in TSH level despite increases in thyroid hormone levels, indicate that the pituitary is resistant to the action of thyroid hormone

homeostasis/metabolism
• 2.5-fold higher circulating T4 concentration than in wild-type
• 2-fold increase in the circulating total T3 concentration
• TSH is 2.1-fold higher than in wild-type

skeleton
• femurs are 4% shorter
• tibias are 5% shorter

limbs/digits/tail
• femurs are 4% shorter
• tibias are 5% shorter

nervous system
• the increase in TSH level despite increases in thyroid hormone levels, indicate that the pituitary is resistant to the action of thyroid hormone

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
thyroid hormone resistance syndrome DOID:11633 OMIM:188570
OMIM:274300
J:65885




Genotype
MGI:5528982
ht6
Allelic
Composition
Thrbtm1.1Syc/Thrb+
Genetic
Background
involves: 129S6/SvEvTac * NIH Black Swiss
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm1.1Syc mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• males habituate less after multiple sessions of exploratory locomotor activity
• males are slower to reach criterion, requiring more sessions to reach criterion of greater than 80% hits on three consecutive sessions of the vigilance task, indicating impaired leaning on a task that requires sustained attention




Genotype
MGI:3588064
ht7
Allelic
Composition
Thrbtm2Few/Thrb+
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thrbtm2Few mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• learning deficit identified in a Morris water maze tes

nervous system
• reduced branching
• changes similar to those seen in congenital hypothyroidism

homeostasis/metabolism

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
thyroid hormone resistance syndrome DOID:11633 OMIM:188570
OMIM:274300
J:77623




Genotype
MGI:5576934
cn8
Allelic
Composition
Thrbtm1Mkni/Thrb+
Hprt1tm1(TG-cre)1Sasr/Y
Genetic
Background
involves: 129/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hprt1tm1(TG-cre)1Sasr mutation (0 available); any Hprt1 mutation (1280 available)
Thrbtm1Mkni mutation (0 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• significantly reduced at 2 months, compared to controls




Genotype
MGI:3698828
cx9
Allelic
Composition
Thratm1Ven/Thratm1Ven
Thrbtm1Df/Thrb+
Genetic
Background
B6.129-Thratm1Ven Thrbtm1Df
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thratm1Ven mutation (1 available); any Thra mutation (39 available)
Thrbtm1Df mutation (1 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
N
• on a congenic C57BL/6J background, these mutant mice display normal ABR responses to click and pure tone stimuli (8, 16, and 32 kHz)




Genotype
MGI:3606079
cx10
Allelic
Composition
Thratm3Ven/Thra+
Thrbtm1Df/Thrb+
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6NCrl
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Thratm3Ven mutation (0 available); any Thra mutation (39 available)
Thrbtm1Df mutation (1 available); any Thrb mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• male Thratm3Ven/Thra+ Thrbtm1Df/Thrb+ mutants exhibited 40% less body weight at 31 days of age compared with Thra+/Thra+ Thrbtm1Df/Thrb+ controls
• similar results were obtained with female mice, although the growth retardation of Thratm3Ven/Thra+ Thrbtm1Df/Thrb+ mutants was less at 22%
• the delay in eye opening was partially rescued, occurring at day 15.3 in the Thratm3Ven/Thra+ Thrbtm1Df/Thrb+ mutants compared with day 18.6 in the Thra+/Thra+ Thrbtm1Df/Thrb+, and day 14 in the wt mice





Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
01/06/2026
MGI 6.24
The Jackson Laboratory