Phenotypes associated with this allele

• Allele Symbol: Chm^tm1.2Seab
• Allele Name: targeted mutation 1.2, Miguel C Seabra
• Allele ID: MGI:3617904
• Summary: 1 genotype

Jump to	Allelic Composition	Genetic Background	Genotype ID
ht1	Chm^tm1.2Seab/Chm^+	involves: 129X1/SvJ	MGI:3620089

Genotype
MGI:3620089

ht1

• Allelic Composition: Chm^tm1.2Seab/Chm⁺
• Genetic Background: involves: 129X1/SvJ

• ♀: phenotype observed in females
• ♂: phenotype observed in males
• N: normal phenotype

homeostasis/metabolism

abnormal response/metabolism to endogenous compounds ( J:105458 )

♀ • 50% reduction in prenylation of Rab27a

♀ • 50% of Rab27a occurs in cytosol rather than cell membranes

vision/eye

abnormal retina morphology ( J:105458 )

♀ • early onset and progressive retinopathy

short photoreceptor outer segment ( J:105458 )

♀ • delayed development of outer segments

♀ • outer segments approximately 50% shorter at 15-17 days of age

abnormal retina pigmentation ( J:105458 )

♀ • hypopigmentation of retina

♀ • small whitish patches observable at 1 month of age

abnormal rod electrophysiology ( J:105458 )

♀ • electroretinography shows a clear reduction of dark-adapted a and b wave amplitude

pigmentation

abnormal retina pigmentation ( J:105458 )

♀ • hypopigmentation of retina

♀ • small whitish patches observable at 1 month of age

nervous system

short photoreceptor outer segment ( J:105458 )

♀ • delayed development of outer segments

♀ • outer segments approximately 50% shorter at 15-17 days of age

Mouse Models of Human Disease		DO ID	OMIM ID(s)	Ref(s)
choroideremia		DOID:9821	OMIM:303100	J:105458