Fluorochrome labeling of MAb

From: Amanda S. Votaw (AVotaw@uwyo.edu)
Date: Mon Feb 12 2001 - 10:49:46 EST


Dear Scientists,

I was wondering if someone could give me direction on fluorochrome labeling
of a Mab.  The labeling kit I would like to use requires 2mg/ml starting Ab
concentration while the Mab I need to use is only available in a 100ug/ml
concentration.  Would it be wiser to 1)try to concentrate the MAb through
say a spin column, 2)scale-down the labeling kit to fit the Ab concentration
(quite a scale-down), or 3)try the experiment with a polyclonal Ab available
in the proper concentration then spend a lot of time testing
cross-reactivity?  The MAb I need to use is E. coli O157:H7, perhaps someone
knows of a supplier who produces greater concentrations.  I am relatively
new to the field of Ab labeling so any feedback will be greatly appreciated.
Thank you for your time.

Sincerely,
Amanda Votaw
Research Scientist
University of Wyoming



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