About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:4418306
Allelic
Composition
Phox2btm3.1Jbr/Phox2btm3.1Jbr
Isl1tm1(cre)Tmj/Isl1+
Genetic
Background
involves: 129S2/SvPas * 129X1/SvJ * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Isl1tm1(cre)Tmj mutation (0 available); any Isl1 mutation (37 available)
Phox2btm3.1Jbr mutation (2 available); any Phox2b mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• 1 week after birth, few mice are still alive

nervous system
• mice exhibit abnormal development of facial neuron precursors that do not migrate into r6 unlike in wild-type mice
• mice exhibit impaired development of retrotapezoid nucleus neurons compared with wild-type mice
• the parafacial area e-pF oscillator exhibits only occasional motor activity bursts with reduced frequency compared to in wild-type mice
• rhythmic phrenic discharges are less frequent than in wild-type mice
• mice fail to exhibit an accelerated respiratory-like rhythm phrenic discharge in response to low pH challenge unlike similarly treated wild-type mice

growth/size/body
• surviving mice are smaller than wild-type mice

cellular
• mice exhibit abnormal development of facial neuron precursors that do not migrate into r6 unlike in wild-type mice
• mice exhibit impaired development of retrotapezoid nucleus neurons compared with wild-type 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
12/17/2024
MGI 6.24
The Jackson Laboratory