Is there a difference between CD34 and CD34+?

Altterrain@AOL.COM Altterrain at AOL.COM
Fri Apr 7 14:31:52 EST 2000

Eileen and all,

The "+" in CD34+ simply refers to being positive for the CD34 cell surface marker. The
absence of  the "+" in CD34 lymphocytes is just shorthand (or laziness).

-Brian White
 Human Genome Sciences
 Rockville, MD
 brian_white at

  I am a data manager for a pharmaceutical company and have the simple
  question what is the meaning of the + in CD34+? and is CD34 lymphocytes the
  same as CD34+ lymphocytes?

  Many thanks,

  > Eileen Gardenhire
  > Project Data Manager
  > Aventis
  > PO Box 6800
  > Rt. 202-206
  > Bridgewater, NJ 08807-0800
  > email: eileen.gardenhire at
  > tele.: 908-231-2464
  > fax: 908-231-2136

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