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Position: Home > Articles > Cloning of 3′-end of Prolactin Receptor Gene in Goose Jiangsu Journal of Agricultural Sciences 2007,23 (6) 114-117

鹅催乳素受体基因3′-末端序列克隆

作  者:
邢光东;王根林;刘庆华;傅泽红;刘铁铮
单  位:
南京农业大学动物科技学院;江苏省农业科学院畜牧研究所
关键词:
鹅;催乳素受体基因;3′-末端序列;RACE
摘  要:
通过比对鸡、火鸡、鸽、猪、大鼠5种动物及人催乳素受体(PRLR),并根据它们的基因cDNA保守区设计兼并引物,先扩增了鹅催乳素受体基因(gPRLR)cDNA一段606 bp保守区序列,再以此设计基因特异性引物,利用3′-RACE技术克隆了gPRLRcDNA3′-末端序列。序列分析表明,获得的gPRLRcDNA 3′-末端长1 876 bp,含编码区后1 656 bp的编码核苷酸、终止密码子TAA和220 bp的3′-UTR。参照鸡催乳素受体基因(cPRLR),此gPRLRcDNA3′-末端序列可分成6个外显子,其长度分别为148 bp、170 bp、145 bp、100 bp、70 bp和1 243 bp,与cPRLRcDNA最后6个外显子高度同源,终止密码子位于最后1个外显子的1 021 bp处。编码区后1 653 bp编码的551个氨基酸gPRLR C-末端与鸡PRLR同源部分的同源性达到87.7%。
译  名:
Cloning of 3′-end of Prolactin Receptor Gene in Goose
作  者:
XING Guang-dong1,2,WANG Gen-lin2,LIU Qing-hua2,FU Ze-hong1,LIU Tie-zheng1 (1.Institute of Animal Science,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;2.College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China)
关键词:
goose;prolactin receptor gene;3′-end sequence;RACE
摘  要:
To characterize the prolactin receptor gene family of goose,a cDNA fragment of goose prolactin receptor gene(gPRLR) with a length of 606 bp was first isolated by RT-PCR using a pair of degenerate primers which were designed based on conservative regions among six species incluing of human,chicken,turkey,pigeon,pig and rat.The 3′-end of gPRLR cDNA was identified by 3′-RACE strategy using gene-specific primers complementary to the isolated cDNA fragment.Sequence analysis of the 1 876 bp RACE product showed a 1 656 bp 3′coding region,a stop codon(TAA) and a 220 bp 3′-UTR.Six predicted exons with sizes of 148 bp,170 bp,145 bp,100 bp, 70 bp and 1 243 bp,respectively,which were found in the sequences were highly homologous to the last exons of cPRLR cDNA.The C-terminus of gPRLR with 551 amino acids long encoded by the last 1 653 bp of the region exhibited 87.7% similarity to the corresponding region of chicken prolactin receptor.Stop codon was located at 1 021 bp of last exon.

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