title: Positron annihilation studies in lysozyme and catalase.
abstract: Positron annihilation studies have been carried out in two enzymes, lysozyme and catalase. Temperature dependence of the positron lifetimes in these two enzymes has been investigated. The results explained in terms of the free volume model and fluctuations between different conformational microstates of enzyme structures provide a new insight into the mechanism of bio-activity of these enzymes.
authors.affiliation: Department of Physics, G.B. Pant University of Agriculture & Technology, Pantnagar, India.
authors.forename: Y
authors.initials: Y
authors.lastname: Rohilla
authors.forename: K P
authors.initials: KP
authors.lastname: Singh
authors.forename: S R
authors.initials: SR
authors.lastname: Choudhury
authors.forename: P C
authors.initials: PC
authors.lastname: Jain
mesh_terms: D002374:Catalase / Q000737:chemistry* / Q000378:metabolism; D007700:Kinetics; D009113:Muramidase / Q000737:chemistry* / Q000378:metabolism; D011487:Protein Conformation; D013816:Thermodynamics
chemical_list: D002374:Catalase; D009113:Muramidase