J. Biochem, 1977, Vol. 81, No. 4 891-898
© 1977 Japanese Biochemical Society
research-article |
Fluorescent Probes for Antibody Active Sites
II. Further Studies on Two Groups of Anti-MANS Antibodies with Significantly Different Effects on MANSamide Fluorescence Produced by a Single Rabbit
Institute of Immunological Science, Hokkaido University Kita-ku, Sapporo, Hokkaido 060
As described previously, a single rabbit (No. 13) produced two groups of anti-MANS antibodies with significantly different effects on MANSamide fluorescence. These groups, anti-MANS antibody (415 nm) and anti-MANS antibody (465 nm), had emission maxima at 415 nm and 465 nm, respectively.
This paper deals with the immunochemical properties of the two groups of antibodies
- The results of fluorometric titration of these groups with MANSamide indicated that anti-MANS antibody (465 nm) had a higher affinity for MANSamide than did anti-MANS antibody (415 nm).
- More than 70% of anti-MANS antibody 415 nm) was adsorbed on Sepharose covalently coupled with bovine serum albumin, which was used as a carrier during immunization, while a half of anti-MANS antibody (465 nm) was adsorbed.
- Only one of the groups, anti-MANS antibody (465 nm), had precipitating activity toward MANS-rabbit serum albumin used as a test antigen.