About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rybp+
wild type
MGI:2436933
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
\Rybpem1(IMPC)Bay/\Rybp+ C57BL/6N-Rybpem1(IMPC)Bay/Bay MGI:7768416
ht2
\Rybptm1Nisa/\Rybp+ involves: 129S1/Sv * 129X1/SvJ MGI:3805329
ht3
\Rybptm1Nisa/\Rybp+ involves: 129S1/Sv * 129X1/SvJ * ICR MGI:3805209


Genotype
MGI:7768416
ht1
Allelic
Composition
\Rybpem1(IMPC)Bay/\Rybp+
Genetic
Background
C57BL/6N-Rybpem1(IMPC)Bay/Bay
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rybpem1(IMPC)Bay mutation (1 available); any Rybp mutation (44 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological

homeostasis/metabolism




Genotype
MGI:3805329
ht2
Allelic
Composition
\Rybptm1Nisa/\Rybp+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rybptm1Nisa mutation (0 available); any Rybp mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• the optic nerve is frequently regressed in the retinas of E14.5 embryos
• lenses are ventrally rotated and misplaced within the eyeball in E14.5 embryos with coloboma
• 32% of E14.5 embryos that are exencephalic also have retinal/optic nerve coloboma
• the colobomas occur both bilaterally and unilaterally and result from incomplete closure of the optic fissure
• the neuroretina is thickened in E14.5 embryos with coloboma

nervous system
• the optic nerve is frequently regressed in the retinas of E14.5 embryos




Genotype
MGI:3805209
ht3
Allelic
Composition
\Rybptm1Nisa/\Rybp+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rybptm1Nisa mutation (0 available); any Rybp mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• 15% of mice die at birth from exencephaly

nervous system
• some E10 embryos have neural tubes with openings at the forebrain/midbrain boundary
• forebrain overgrowth in the 15% of mice that have exencephaly
• disorganization and the absence of parts of the mid-brain are noted in the 15% of mice born with exencephaly
• 15% of mice are born with exencephaly
• excencephaly results from forebrain overgrowth and ventricular stenosis

embryo
• some E10 embryos have neural tubes with openings at the forebrain/midbrain boundary





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
03/25/2025
MGI 6.24
The Jackson Laboratory