title: Molecular characterization, chromosomal localization and association analysis with back-fat thickness of porcine LPIN2 and LPIN3.
abstract: The products of mammalian LPIN2 and LPIN3 are phosphatidate phosphatase type 1 enzymes, which play an important role in the de novo biosynthesis of triacylglycerol, phosphatidylcholine and phosphatidylethanolamine. In this study, we obtained a 2,985-bp cDNA sequence of porcine LPIN2, which contains a 2,676-bp open reading frame flanked by an 11-bp 5'UTR and a 298-bp 3'UTR, and a 2,843-bp cDNA sequence of porcine LPIN3, which contains a 111-bp 5'UTR, a 2,580-bp open reading frame and a 152-bp 3'UTR. RT-PCR analysis showed that both LPIN2 and LPIN3 mRNA were ubiquitously expressed with a very high level in liver. By using the somatic cell hybrid panel (SCHP) and the radiation hybrid (IMpRH) panel, porcine LPIN2 and LPIN3 were assigned to 6q24-(1/2)q31 and 17(1/2)q21-q23, respectively. One T2193C single nucleotide polymorphism in LPIN2 was identified and was detected by Hin6I PCR-RFLP. Association analysis showed that different genotypes of LPIN2 were associated with back-fat thickness between the 6th and 7th ribs (P < 0.01).
authors.affiliation: Lab of Molecular Biology and Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, PR China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: He
authors.forename: Xuewen
authors.initials: X
authors.lastname: Xu
authors.forename: Bang
authors.initials: B
authors.lastname: Liu
mesh_terms: D050154:Adiposity / Q000235:genetics*; D000818:Animals; D033481:Chromosomes, Mammalian / Q000378:metabolism*; D018076:DNA, Complementary / Q000235:genetics; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D005838:Genotype; D009687:Nuclear Proteins / Q000235:genetics* / Q000378:metabolism; D010802:Phylogeny; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D012689:Sequence Homology, Nucleic Acid; D034421:Sus scrofa / Q000235:genetics*
chemical_list: D018076:DNA, Complementary; D009687:Nuclear Proteins