Phenotype Details
Phene ID
4714
Name
Thrombopathia, RASGRP2-related
Phene Name
Simmental hereditary thrombopathy; bleeding disorder;
OMIA ID
2433
Species ID
9913
Characterised
Yes
Characterised Year
2007
Linked Variants
Variant IDPhenotypeGene IDDeleteriousChromosomeGenomicTranscriptProtein
209Thrombopathia38906499129NC_037356.1:g.42978791A>GNM_001099946.1:c.701T>CNP_001093416.1:p.(L234P)
Linked Breeds
BreedBreed IDSpecies IDVBO Term
Holstein Friesian (Cattle)739913http://purl.obolibrary.org/obo/VBO_0000239
Swiss Fleckvieh (Cattle)15029913http://purl.obolibrary.org/obo/VBO_0000393
Molecular Genetics

On the strength of a clear candidate gene in which mutations cause the same disorder in dogs (OMIA 001003-9615), Boudreaux et al. (2007) reported that this disorder in a Simmental calf is due to a missense mutation (c.701T>C) in the CalDAG-GEFI gene which is now called RASGRP2. Jansen et al. (2013) reported that "Sanger sequencing confirmed that all thrombopathic animals are homozygous for the [same] pertinent amino acid exchange (c.701T > C, p.L234P, Chr29:43599204" (UMD3.1 reference coordinates). Aebi et al. (2016) reported the same causal mutation in affected Simmental cattle in Switzerland.

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