title: cDNA cloning, sequence identification and tissue expression distribution of three novel porcine genes: UCHL3, RIT1 and CCND3.
abstract: The complete CDS sequences of three porcine genes: UCHL3, RIT1 and CCND3 were amplified using RT-PCR based on the sequence information of the mouse or other mammals and referenced highly homologous pig ESTs. Sequence analysis of these three genes revealed that the porcine UCHL3 gene encodes a protein of 230 amino acids and has high homology with the ubiquitin carboxyl-terminal hydrolase isozyme L3 (UCHL3) of four species-bovine (97%), human (96%), mouse (95%) and rat (94%). The porcine RIT1 gene encodes a protein of 219 amino acids and has high homology with the GTP-binding protein Rit1 (RIT1) of two species-human (97%), mouse (97%). The porcine CCND3 gene encodes a protein of 292 amino acids and has high homology with the G1/S-specific cyclin-D3 (CCND3) of four species-bovine (98%), human (97%), mouse (93%) and rat (92%). The phylogenetic tree analysis revealed that the swine UCHL3 has a closer genetic relationship with the UCHL3 of bovine, and the swine RIT1 has closer genetic relationships with the RIT1 of human, but the swine CCND3 has a closer genetic relationship with the CCND3 of bovine. The RT-PCR gene expression analysis indicated that the swine UCHL3, RIT1 and CCND3 genes were differentially expressed in tissues including small intestine, large intestine, liver, muscle, fat, lung, spleen and kidney. Our experiment established the primary foundation for further research on these three swine genes.
authors.affiliation: Key Laboratory of Animal Nutrition and Feed of Yunnan Province, Yunnan Agricultural University, Kunming, China. liuyg4567@163.com
authors.forename: G Y
authors.initials: GY
authors.lastname: Liu
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D056743:Cyclin D3; D016213:Cyclins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D003546:Cysteine Endopeptidases / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D018076:DNA, Complementary / Q000235:genetics*; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D009928:Organ Specificity; D010802:Phylogeny; D012333:RNA, Messenger / Q000235:genetics; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D013552:Swine / Q000235:genetics / Q000378:metabolism*; D018631:ras Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism
chemical_list: C534696:CCND3 protein, human; C534697:Ccnd3 protein, mouse; C534698:Ccnd3 protein, rat; D056743:Cyclin D3; D016213:Cyclins; D018076:DNA, Complementary; D012333:RNA, Messenger; D003546:Cysteine Endopeptidases; D018631:ras Proteins