SHORT COMMUNICATION
Crystal structure of a PR-10 nodulin
in complex with trans-zeatin
Publication date: 2014-10-23
BioTechnologia 2013;94(1):42-46
ABSTRACT
Nodules are unique root organs of legume plants. Nodulation (nodule formation) is an extraordinary symbiotic
process which eventually allows a plant to assimilate atmospheric nitrogen. The nitrogen-fixing bacteria that colonize
the nodules convert molecular nitrogen N2 into compounds suitable for plant metabolism. A class of plant
hormones called cytokinins are known to affect the nodulation process. A small protein, Nodulin 13 from Medicago
truncatula (MtN13), is expressed in the outer cortex of the nodule at early stages of nodulation. MtN13 belongs
to class 10 of plant pathogenesis-related proteins (PR-10). PR-10 members have been shown to bind cytokinins.
This paper focuses on the involvement of cytokinins in nodulation and presents a brief overview of the
crystal structure of MtN13 in complex with trans-zeatin, a naturally occurring cytokinin.
process which eventually allows a plant to assimilate atmospheric nitrogen. The nitrogen-fixing bacteria that colonize
the nodules convert molecular nitrogen N2 into compounds suitable for plant metabolism. A class of plant
hormones called cytokinins are known to affect the nodulation process. A small protein, Nodulin 13 from Medicago
truncatula (MtN13), is expressed in the outer cortex of the nodule at early stages of nodulation. MtN13 belongs
to class 10 of plant pathogenesis-related proteins (PR-10). PR-10 members have been shown to bind cytokinins.
This paper focuses on the involvement of cytokinins in nodulation and presents a brief overview of the
crystal structure of MtN13 in complex with trans-zeatin, a naturally occurring cytokinin.
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| eISSN: | 2353-9461 |
| ISSN: | 0860-7796 |
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