CD34isasinglechaintransmembraneglycoprotein(105-120kD)selectivelyexpressedonhumanlymphoid,myeloidhaematopoietic
Progenitorcellsandonvascularendothelium.Usefulforstudyingbenignandmalignantvasculartumorsandforcharacterizingleukemias.Potential
Markerfortelocytesinvarioustissues.