Immunogen sequence: SPTSKETIGD YTWTNGSQPC VHLQAQIQIR VMYTTQGGGE AWGISVLNPN KTKVQGSCEG AHPHLLLSFP YG. CD68 (Macrosialin) is a 110 kDa integral membrane glycoprotein predominantly expressed on the intracellular lysomsomes of monocytes and macrophages and t