Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/33809
Title: Physico-chemical and antigenic characterization of unconventional heavy chain antibodies of Indian desert camel (Camelus dromedarius L.)
Authors: Sehrawat, Sharvan
Singh, Ajit
Keywords: Indian camel;Heavy chain antibodies;Purification;Electrophoresis;Antigenic relationship;Immunoblots;Camelus dromedarius L.
Issue Date: Dec-2004
Publisher: NISCAIR-CSIR, India
IPC Code: C 07 K 16/06
Abstract: Heavy chain antibodies (HCAbs) of IgG2 and IgG3 subtypes were purified from the sera of Indian desert camel (Camelus dromedarius L.) by ammonium sulphate precipitation, followed by ion-exchange chromatography on DEAE-cellulose and affinity chromatography on protein A-sepharose and protein G-sepharose, and characterized by SOS-polyacrylamide gel electrophoresis, agar gel immunodiffusion (AGIO), counter-immunoelectrophoresis (CIEP), immunoelectrophoresis (IEP), ELISA and immunoblotting. IgG2 and IgG3 were found to have molecular mass 46.77 kDa and 43.65 kDa, respectively by SOS-PAGE under reducing conditions. They migrated in β-region in IEP and could be detected in CIEP, because of being more negatively charged and smaller size. Anti-camel IgG3 cross-reacted in AGIO, ELISA and immunoblotting with IgGs of pig and ruminants (cattle, buffalo, sheep and goat), but not with immunoglobulins from horse, dog, guinea pigs, mice, fish, poultry and human. The present findings suggest close antigenic relationship of camels with pigs and ruminants.
Page(s): 299-304
URI: http://hdl.handle.net/123456789/33809
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJBB Vol.41(6) [December 2004]

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