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In silico characterisation and homology modelling of a pathogenesis-related protein from Saccharum arundinaceum

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Autor(es):
Mohan, Chakravarthi ; Santos Junior, Celio Dias ; Chandra, Swarnendu
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: ARCHIVES OF PHYTOPATHOLOGY AND PLANT PROTECTION; v. 53, n. 5-6, p. 17-pg., 2020-03-06.
Resumo

Pathogenesis related 10 (PR10) proteins are small, cytosolic proteins sharing a similar three-dimensional structure and diverse functions. The present study aimed to characterise in silico the PR10.1 protein from Saccharum arundinaceum (SaPR10.1), a wild relative of sugarcane. SaPR10.1 is a hydrophilic small acidic protein (17 kDa) that lacks the P-loop motif presumed to be involved in the RNase activity for some PR-10 proteins. Predictions of a rich secondary structure present in SaPR10.1 led us to a protein model that suggests SaPR10.1 can bind to more than one molecule of trans-zeatin using molecular docking. This finding suggests that SaPR10.1, differently from the orthologs, can be involved in more efficient depletion of free trans-zeatin. This idea is reinforced by the phylogenetic analysis, which showed both variants SaPR10 and SaPR10.1 closely related to other monocot species like sorghum, maize, and broomcorn millet and not to wheat. (AU)

Processo FAPESP: 15/10855-9 - Desenvolvimento de cana-de-açúcar transgênica mais resistente ao Sphenophorus levis
Beneficiário:Chakravarthi Mohan
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado