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Published on: September 16, 2010
Partial purification and characterization of Gigantocotyle explanatum somatic antigens
G Ahmad1, M K Saifullah, W A Nizami
1Section of Parasitology, Department of Zoology, Aligarh Muslim University, Aligarh 202 002, India. gul_ahmad@yahoo.com
Abstract:
Soluble extracts of Gigantocotyle explanatum, isolated from the liver of buffalo Bubalus bubalis were fractionated on Sephadex G-200 columns. Nine major fractions referred to as F1, F2, F3, F4, F5, F6, F7, F8 and F9 were separated. Each fraction was tested by ELISA for antigenicity using sera from G. explanatum-infected field buffaloes. Fractions F1 and F2 were highly antigenic, F3, F4, F6 and F7 were moderately antigenic and F5, F8 and F9 were poorly antigenic. Analyses by SDS-PAGE revealed that each fraction comprised several polypeptide(s) in the molecular weight range of <29 to >205 kDa. Results of Western blotting indicated that not all polypeptides which appeared in the SDS-PAGE were antigenic. The antigenic molecules of each fraction were mostly in the low molecular weight range of <14 to >94 kDa with the polypeptides in the range of >14, 14, 18, 21-25 and 34-36 kDa.
