Abstract:
:The anti-glutathione antibody scFv 20C9, which we previously isolated from a human synthetic phage antibody scFv library [Hirose, M., Hayano, T., Shirai, H., Nakamura, H., and Kikuchi, M. (1998) Protein Eng. 11, 243-248], was expressed in the E. coli pET system and purified by sequential chromatography on Ni and glutathione-conjugated affinity resins. The purified scFv 20C9 antibody was characterized for its binding affinity for several glutathione derivatives by the BIACORE system. Although GSH, GSSG, and gamma-Glu-Cys could bind to the immobilized antibody, this was not the case for Cys-Gly, l-Glu, l-Cys, l-Gly, or several other glutathione derivatives such as gamma-Glu-Ser-Gly. The results suggest that a gamma-glutamic acid and sulfur atom are important for scFv 20C9 antibody recognition of glutathione. This is the first report to indicate that an scFv antibody can recognize a region as small as a dipeptide.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Horibe T,Furuya R,Iwai A,Yosho C,Tujimoto Y,Kikuchi Mdoi
10.1006/bbrc.2001.4491subject
Has Abstractpub_date
2001-03-01 00:00:00pages
1321-4issue
5eissn
0006-291Xissn
1090-2104pii
S0006-291X(01)94491-2journal_volume
281pub_type
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