About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:4442422
Allelic
Composition
Tbx5tm1Jse/Tbx5tm1Jse
Tg(Prrx1-cre/ERT2)1Mlgn/0
Tg(Scx-GFP)1Stzr/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tbx5tm1Jse mutation (0 available); any Tbx5 mutation (28 available)
Tg(Prrx1-cre/ERT2)1Mlgn mutation (0 available)
Tg(Scx-GFP)1Stzr mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
muscle
• some tendon fibers connecting forearm muscles to skeletal elements in the handplate are thinner than in controls and some have fused together
• in forelimb, tendons develop functional entheses on the forming skeleton

limbs/digits/tail
• with tamoxifen treatment at E9.5, limbs display minor skeletal deformities similar to those in humans with Holt-Oram syndrome (triphalangeal thumb)
• muscle patterning is disrupted similarly to that with tamoxifen treatment at E10.5
• patterning of tendon fibers connecting forearm muscles to skeletal elements in the handplate is significantly disrupted compared to wild-type; fewer tendon fibers are present
• mispatterned muscles make functional myotendinous attachments to tendons

skeleton
• some tendon fibers connecting forearm muscles to skeletal elements in the handplate are thinner than in controls and some have fused together
• in forelimb, tendons develop functional entheses on the forming skeleton


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
04/30/2024
MGI 6.23
The Jackson Laboratory