Primary Identifier | MGI:109611 | Organism | mouse, laboratory |
Chromosome | 13 | NCBI Gene Number | 109620 |
Mgi Type | protein coding gene |
description | FUNCTION: Automated description from the Alliance of Genome Resources (Release 7.3.0) Predicted to enable protein kinase C binding activity; scaffold protein binding activity; and structural molecule activity. Involved in several processes, including desmosome organization; intermediate filament organization; and ventricular compact myocardium morphogenesis. Acts upstream of or within several processes, including adherens junction organization; intermediate filament cytoskeleton organization; and skin development. Located in several cellular components, including adherens junction; basolateral plasma membrane; and intercalated disc. Colocalizes with intermediate filament. Is expressed in several structures, including alimentary system; extraembryonic component; genitourinary system; heart; and sensory organ. Used to study Carvajal syndrome and arrhythmogenic right ventricular dysplasia 8. Human ortholog(s) of this gene implicated in Carvajal syndrome; arrhythmogenic right ventricular cardiomyopathy; arrhythmogenic right ventricular dysplasia 8; dilated cardiomyopathy; and keratosis palmoplantaris striata 2. Orthologous to human DSP (desmoplakin). PHENOTYPE: Homozygous null mutants die by embryonic day E6.5 due to instability of desmosomes and tissue integrity; rescue by aggregation with wild-type tetraploid morulae increase embyronic survival with noted major defects in heart muscle, neuroepithelium and epidermis. Epidermis-specific conditional KO leads to compositionally altered epidermal desmosomes. Homozygosity for a specific point mutation is embryonic lethal while heterozygosity increases sensitivity to induced heart stress. [provided by MGI curators] |