Cloning and sequence analysis of two isotypic IgM heavy chain genes from Atlantic salmon, Salmo salar L
Cloning and sequence analysis of two isotypic IgM heavy chain genes from Atlantic salmon, Salmo salar L
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大西洋鲑鱼 Salmo salar L 两个同型 IgM 重链基因的克隆和序列分析
DOI:
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发表时间:
1992
影响因子:
5.4
通讯作者:
C. Endresen
中科院分区:
文献类型:
--
作者:
I. Hordvik;A. M. Voie;J. Glette;R. Male;C. Endresen
A leukocyte cDNA library from Atlantic salmon, based on oligo‐dT priming, was constructed in λ‐gt10. Immunoglobulin heavy chain (IgH) cDNA were isolated from the library using a specific probe generated by polymerase chain reaction (PCR) between two conserved areas within the variable region (second and fourth frame region). Two cDNA clones encoding the entire constant region of membrane‐bound IgH, and one cDNA encoding the entire constant region of secretory IgH were sequenced, revealing messages from two isotypic IgM genes. Both genes were shown to be present in haploid embryos and have been isolated from a genomic library, the exons and deduced amino acid sequences of which are presented here (salmon CHA and CHB). The splicing of transcripts encoding the membrane‐bound IgH excises the whole fourth exon as in other teleosts. The nucleotide and amino acid identity between salmon CHA and CHB are 98.2 %, and 96.2%, respectively. Two subfractions of IgM from Atlantic salmon separated by ion chromatography can be explained by a net exchange of basic residues in salmon CHB compared to CHA. The finding of two closely related salmon CH genes is in accordance with the quasi‐tetraploid state of the Atlantic salmon genome.
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DOI:
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发表时间:
1991
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Ghaffari,SH;Lobb,CJ
通讯作者:
Lobb,CJ
DOI:
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发表时间:
1989
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Ghaffari,SH;Lobb,CJ
通讯作者:
Lobb,CJ
DOI:
10.1016/0735-0651(89)90021-6
发表时间:
1989
期刊:
Gene analysis techniques
影响因子:
--
作者:
Kreitman,M;Landweber,LF
通讯作者:
Landweber,LF
DOI:
10.1073/pnas.85.7.2245
发表时间:
1988-04
影响因子:
11.1
作者:
Joseph Schwager;Carole A. Mikoryak;Lisa A. Steiner
通讯作者:
Joseph Schwager;Carole A. Mikoryak;Lisa A. Steiner
影响因子:
14.9
作者:
Melanie R. Wilson;Ann Marcuz;Frederick van Ginkel;Norman W. Miller;L. Clem;D. Middleton;Gregory W. Warr
通讯作者:
Melanie R. Wilson;Ann Marcuz;Frederick van Ginkel;Norman W. Miller;L. Clem;D. Middleton;Gregory W. Warr