A novel pig gene, CPNE1, differentially expressed in the muscle tissues from Wujin pigs and Large White pigs.

摘要

The mRNA differential display technique was performed to investigate gene expression differences in the longissimus dorsi muscle from Wujin and Large White pigs. A fragment of one differentially expressed gene was isolated and sequenced. A complete cDNA sequence of the gene was obtained using the rapid amplification of cDNA ends (RACE) method. The open reading frame of this gene encodes a protein of 537 amino acids, which is homologous with the Copine I (CPNE1) of eight species: greater horseshoe bat (95%), mouse (92%), rat (93%), cattle (95%), sheep (95%), rabbit (94%), human (95%) and dog (94%). This newly identified gene was respectively defined as the swine CPNE1 gene and had been assigned GeneID: 100233174. The phylogenetic analysis revealed that the swine CPNE1 gene has a closer genetic relationship with the CPNE1 gene of a dog. The tissue expression analysis indicated that the swine CPNE1 gene has a broad tissue distribution. The experiment described is the first to establish the primary foundation for further research on the swine CPNE1 gene.