title: Molecular characterization, tissue distribution and expression analysis of interleukin-12 receptor β2 chain in sheep.
abstract: Ovine β2 subunit of the interleukin (IL)-12 receptor (IL-12Rβ2) was cloned from mRNA preparation of mitogen-activated peripheral blood mononuclear cells (PBMCs). The complete coding sequence for ovine IL-12 Rβ2 was found to be 2586 nucleotides in length encoding 862-amino-acid residue protein. It showed 96.4% homology at the nucleotide level and 94.1% homology at the amino acid level with bovine IL-12 Rβ2. The ovine IL-12 Rβ2 subunit shares common structural and functional elements with their counterparts from the other species. Phylogenetic tree showed that ovine IL-12Rβ2 was clustered into the Artiodactyla group, together with those of cattle and pig, which was distinct from the other groups. Real-time RT-PCR was used to investigate expression of the IL-12Rβ2 in different tissues of sheep in order to determine the characterization of this receptor in tissue. Expression analysis showed that IL-12Rβ2 mRNA expression was detected at all the detected tissues with the exception of thymus.
authors.affiliation: State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Yanchangpu, Chengguan District, Lanzhou 730046, China.
authors.forename: Xuelian
authors.initials: X
authors.lastname: Meng
authors.forename: Aijiang
authors.initials: A
authors.lastname: Guo
authors.forename: Wei
authors.initials: W
authors.lastname: Gong
authors.forename: Wanzhong
authors.initials: W
authors.lastname: Jia
authors.forename: Xuenong
authors.initials: X
authors.lastname: Luo
authors.forename: Junjun
authors.initials: J
authors.lastname: Zhai
authors.forename: Yongxi
authors.initials: Y
authors.lastname: Dou
authors.forename: Xuepeng
authors.initials: X
authors.lastname: Cai
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002417:Cattle; D002478:Cells, Cultured; D003001:Cloning, Molecular; D020869:Gene Expression Profiling; D053712:Interleukin-12 Receptor beta 2 Subunit / Q000737:chemistry / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism*; D007963:Leukocytes, Mononuclear / Q000166:cytology / Q000378:metabolism; D008958:Models, Molecular; D008969:Molecular Sequence Data; D010802:Phylogeny; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D012756:Sheep / Q000097:blood / Q000235:genetics* / Q000378:metabolism*; D013552:Swine; D013950:Thymus Gland / Q000378:metabolism; D014018:Tissue Distribution
chemical_list: D053712:Interleukin-12 Receptor beta 2 Subunit; D012333:RNA, Messenger