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Calcium homeostasis modulator 1 ( CALHM1 ) polymorphisms in cattle

Yun, Chae-Hee; Jeong, Byung-Hoon.
Pesqui. vet. bras; 37(6): 582-586, jun. 2017. tab, ilus
Artigo em Inglês | LILACS | ID: biblio-895453


The calcium homeostasis modulator 1 gene (CALHM1), which is located on chromosome 10 in humans and on chromosome 26 in cattle, is a transmembrane glycoprotein that controls the cytosolic calcium concentrations. Altered calcium homeostasis has been associated with several neurodegenerative disorders, including Alzheimer's disease (AD). In a recent study, single nucleotide polymorphisms (SNPs) of CALHM1 have been associated with sporadic Creutzfeldt-Jakob disease (CJD). The protein sequence of human CALHM1 shows 93% homology with bovine CALHM1. Although SNPs of human CALHM1 have been correlated with human prion disease, polymorphisms of the bovine CALHM1 gene have not been reported in cattle thus far. To investigate polymorphisms of the bovine CALHM1 gene in Korean native cattle, we analyzed the open reading frame (ORF) of this gene in 175 Hanwoo and 141 Holstein cattle. We observed five SNPs: c.219C>T (rs380966453), c.357C>T (rs385969338), and c.869A>G (rs516301908) within the ORF region of two exons; and c.552+92A>G (rs481706737) and c.553-3A>C (rs448524869) in the intron of bovine CALHM1. Among the three SNPs that are in the ORF region of bovine CALHM1, the genotype and allele frequencies of the c.869A>G (p.His290Arg) and c.219C>T (p.Asn73Asn) SNPs were significantly different between Hanwoo and Holstein cattle (P<0.0001). Haplotype analysis showed that haplotypes ht2, ht3 and ht5 were also significantly different in these two cattle breeds. This study provides the first genetic analysis of the bovine CALHM1 gene in cattle.(AU)
Biblioteca responsável: BR68.1