SONG RONG, LI YUAN-CHAO, LU FENG-LIN, et al. Primary research on the binding domain and the binding rate between human C5a and C5L2. [J]. Journal of army medical university, 2007, 29(6): 467-470.
SONG RONG, LI YUAN-CHAO, LU FENG-LIN, et al. Primary research on the binding domain and the binding rate between human C5a and C5L2. [J]. Journal of army medical university, 2007, 29(6): 467-470.DOI:
Objective To predict binding domains of human C5a like receptor 2(C5L2) and further to detect the affinity between C5a and C5L2 by the technology of bioinformatics and BIA. Methods Based on amino acid sequence
the parameters of secondary structure
hydrophilicity
accessibility
antigenicity
epitope and flexibility were assessed by using ExPASy Proteomics tools and Goldkey. Meanwhile
the binding rate was detected between human C5a and C5L2
the rhC5a was in immobilization
and the synthesized polypeptides were in streaming movement. The synthesized polypeptides were used to identify the predicted results by biosensor technique. Results The synthesized polypeptides (N2 and C3) could bind to C5a specifically and their binding rate was 53% and 23% respectively. Conclusion Domains between 3-22
179-183
190-195
265-275 were most likely to be the binding domains of C5L2.