Please use this identifier to cite or link to this item:
Title: Crystal and molecular structure of muga wild silk fibres based on [Ala-Gly]n sequence using LALS technique
Authors: Urs, G Thejas
Ananda, H T
Prakash, M B Nanda
Byrappa, K
Somashekar, R
Keywords: Crystal structure;Linked atom least squares;Muga silk;Silk;X-ray technique
Issue Date: Jun-2015
Publisher: NISCAIR-CSIR, India
Abstract: X-ray diffraction pattern of muga wild silk fibres has been recorded using imaging plate system (Dip-100S). In order to identify various Bragg reflections and to compute X-ray intensities of these reflections, fibre processing software (CCP13) has been used. A molecular model is first constructed with standard bond lengths and angles using helical symmetry and layer-line spacing observed in the X-ray pattern. The model is then refined against observed X-ray data using linked atom least squares method. The crystal and molecular structure of muga wild silk fibres are compared with reported domestic and wild silk fibre. We could get good R–factor with refinement of a model having beta-pleated sheet structures formed by hydrogen bonds having antipolar – antiparallel arrangement.
Page(s): 131-136
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.40(2) [June 2015]

Files in This Item:
File Description SizeFormat 
IJFTR 40(2) 131-136.pdf146.88 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.