Plant Hsp100 family with special reference to rice |
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Authors: | Sneh Lata Singla Ashwani Pareek Anil Grover |
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Institution: | (1) Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, 110 021 New Delhi, India |
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Abstract: | Heat shock proteins (Hsps) represent a group of specific proteins which are synthesized primarily in response to heat shock
in almost all biological systems. Members of Hsp100 family have been directly implicated in induction of thermotolerance in
microbial and animal cells. Yeast cells harbouring defectivehsp104 gene do not show thermotolerance under conditions in which the normal cells do. Several plant species have been shown
to synthesize Hsps in the range of 100 kDa. Rice Hsp104 (OsHsp104) is rapidly and predominantly accumulated in heat-shocked
cells. Western blotting analysis show that anti rice Hsp104 antibodies (generated against purified Hsp104 protein from cultivated
riceOryza sativa L.) cross-react with the same-sized high temperature inducible protein in 15 different wild rices. It was further found that
anti rice Hsp104 antibodies also cross-react with a major high temperature regulated protein ofEscherichia coli. We have previously shown that a 110 kDa stress regulated protein in rice (OsHsp110) is immunologically related to yeast
Hsp104 protein. In this paper, we present a comparative account of characteristics of the OsHsp104 and OsHsp110 proteins. |
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Keywords: | Heat shock proteins Hsp100 family OsHsp104 OsHsp110 rice |
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