Conjugated Cytokines Wanted

[Emiliano Mugnaini]

Hello,

I am interested in obtaining the cytokines listed below in conjugated
(FITC or PE) or biotinylated form:

IFN - alpha/beta
TNF -  alpha
IL - 2,4,7,10,12.

Is there anyone who might know where such can be found?

I have already begun to inquire with R&D Systems, Genzyme, and Bender
Medsystems. 

If necessary, I would be interested in having the cytokines custom
conjugated or delivered in carrier-free form so that I could biotinylate
them myself.

Thank you,
Emil Mugnaini