Antibody conjugation

Peter Chapple (peterc@petermac.unimelb.edu.au)
Tue, 6 Aug 1996 17:40:11 +1000

Dear Collegues,

I am about to collaborate on some experiments with a new investigator, and
after some lengthy discussions it appears that the only suitable antibodies
for our experiments are only available in un-conjugated form.

Since I loathe the idea of doing 2 step labelling - with all it's washing
steps (it will be a 2 color experiment so washing/blocking will be painful)
- so I have hit upon the idea of conjugating the antibodies myself. Is this
foolish ?

I have never conjugated an antibody before and would like some input on:-

a. Is this a good idea to attempt this?
b. What is my best chance of sucess, FITC, RPE, biotin?
c. Can someone suggest a protocol which is reliable ?
d. A co-worker tells horror stories of antibodies which conjugate well, and
degrade after 3-4 weeks, is this caused by technique or fate ?

Any suggestions are, as always, appreciated

Peter Chapple
Senior Scientist
Peter MacCallum Cancer Institute
Melbourne AUSTRALIA