02808nas a2200265 4500008004100000022001400041245012900055210006900184260010600253300001000359490000700369520184100376653001102217653002002228653002002248653002302268653002202291653003402313653001002347653001402357653001402371100001702385700001902402856012102421 2015 eng d a0010-482500aGenome-wide identification and structure-function studies of proteases and protease inhibitors in cicer arietinum (chickpea)0 aGenomewide identification and structurefunction studies of prote aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJAN a67-810 v563 a
Background: Proteases are a family of enzymes present in almost all living organisms. In plants they are involved in many biological processes requiring stress response in situations such as water deficiency, pathogen attack, maintaining protein content of the cell, programmed cell death, senescence, reproduction and many more. Similarly, protease inhibitors (PIs) are involved in various important functions like suppression of invasion by pathogenic nematodes, inhibition of spores-germination and mycelium growth of Alternaria alternata and response to wounding and fungal attack. As much as we know, no genome-wide study of proteases together with proteinaceous PIs is reported in any of the sequenced genomes till now. Methods: Phylogenetic studies and domain analysis of proteases were carried out to understand the molecular evolution as well as gene and protein features. Structural analysis was carried out to explore the binding mode and affinity of PIs for cognate proteases and prolyl oligopeptidase protease with inhibitor ligand. Results: In the study reported here, a significant number of proteases and PIs were identified in chickpea genome. The gene expression profiles of proteases and Pis in five different plant tissues revealed a differential expression pattern in more than one plant tissue. Molecular dynamics studies revealed the formation of stable complex owing to increased number of protein-ligand and inter and intramolecular protein-protein hydrogen bonds. Discussion: The genome-wide identification, characterization, evolutionary understanding, gene expression, and structural analysis of proteases and Pis provide a framework for future analysis when defining their roles in stress response and developing a more stress tolerant variety of chickpea. (C) 2014 Elsevier Ltd. All rights reserved.
10aDomain10aGene expression10aGenome analysis10aHomology modelling10aMolecular docking10amolecular dynamics simulation10aMotif10aOrthologs10aPhylogeny1 aSharma, Ranu1 aSuresh, C., G. uhttp://library.ncl.res.in/content/genome-wide-identification-and-structure-function-studies-proteases-and-protease-0