1Dept. of Agriculture, Jagannath University, Chaksu, Jaipur, Rajasthan (303 901), India
2Dep. of Plant molecular biology and Biotechnology, JAU, Junagadh, Gujrat (362 001), India
3Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu, Jammu and Kashmir (180 009), India
4Dept. of Agronomy, Institute of Agriculture, Visva-Bharati, Sriniketan, West Bengal (731 236), India
*Corresponding Author Joy Kumar Dey e-mail: joykumardey7@gmail.com
Online published on 30 June, 2018.
Heat shock proteins (HSP) are expressed in response to various biological stresses, including heat, high pressures, and toxic compounds. It is also one of the most abundant cellular proteins found under non-stress conditions. HSPs are classified into different families and designated by molecular weight in kDa. HSPs 60, 70 and 90: act as molecular chaperons, involving ATP dependent stabilization and folding of proteins and assembly of oligomeric proteins. They can assist in polypeptide transport across membranes into cellular compartments, temporarily bind and stabilize an enzyme at a particular stage in cell development, later releasing the enzyme to become active. Binding of HSP with particular polypeptide within sub cellular compartment avoids denaturation of many proteins at high temperatures.
