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The isolation and characterization of a cDNA clone encoding Lupinus angustifolius root nodule glutamine synthetase
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Grant, Murray, Carne, Alan, Hill, Diana F. and Farnden, Kevin J. F. (1989) The isolation and characterization of a cDNA clone encoding Lupinus angustifolius root nodule glutamine synthetase. Plant Molecular Biology, 13 (5). pp. 481-490. doi:10.1007/BF00027308 ISSN 0167-4412.
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Official URL: http://dx.doi.org/10.1007/BF00027308
Abstract
Glutamine synthetase, purified from Lupinus angustifolius legume nodules, was carboxymethylated and succinylated prior to chemical or enzymatic cleavage. Peptides were purified and sequenced. An oligonucleotide probe was constructed for the sequence MPGQW. This probe was used to identify a glutamine synthetase cDNA clone, pGS5, from a lupin nodule cDNA library constructed in pBR322. pGS5 was sequenced (1043 bp) and computer-assisted homology searching revealed a high degree of conservation between this lupin partial cDNA clone and other plant glutamine synthetases at both the amino acid (>90%) and nucleotide (>80%) level. Northern and Southern analyses using pGS5 supported the conclusion that a multigene glutamine synthetase family exists in lupin which is differentially expressed in both an organ-specific and temporal manner. Western and Northern blot analyses indicated the accumulation of a glutamine synthetase specific mRNA species during nodule development corresponded to the appearance of a novel glutamine synthetase polypeptide between 8 and 10 days after rhizobial inoculation.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
Journal or Publication Title: | Plant Molecular Biology | ||||
Publisher: | Springer | ||||
ISSN: | 0167-4412 | ||||
Official Date: | 1989 | ||||
Dates: |
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Volume: | 13 | ||||
Number: | 5 | ||||
Page Range: | pp. 481-490 | ||||
DOI: | 10.1007/BF00027308 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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