Isotype <-> unstained cells

From: Kerstin (beckk@sun11.ukl.uni-freiburg.de)
Date: Wed Mar 21 2001 - 02:41:14 EST


hello everybody,
what do you use as a negative controll (cells not expressing the marker) in
FACS-analyses? Cells stained with the isotype or unstained cells?
I started stainig cells for FACS-analyses for about 2 years and I always
used isotypstained cells as a negetive controll (=marker for unspecific
binding and for correcting the compensation). Someone told me, that
Isotypestaining is not a good negative controll because the Isotype is from
a different host, and can`t representate the unspecific binding. So it
would be better to use unstained cells.
What does you use/Think about this ?

Thanks
Kerstin

*****************************************
Kerstin Beck
Institut für Medizinische Mikrobiologie und Hygiene
Abteilung Virologie
Hermann-Herder-Strasse 11
D-79104 Freiburg
Telefon : +49-(0)761-203-6646
Fax : +49-(0)761-203-6603
beckk@ukl.uni-freiburg.de
*****************************************



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