Beckman Cd4-Rd1, Sfci12t4d11, 100 Tests, Ce, Ivd

Beckman the cd4 antigen is a single-chain transmembrane glycoprotein with a 59 kda molecular weight. cd4 binds to a non-polymorphic region of mhc class ii molecules and is a co-receptor in mhc class ii restricted antigen-induced activation. cd4 is expressed on the t "helper" lymphocytes. it is present on most thymocytes where it is frequently co-expressed with cd8. cd4 is also expressed on all monocytes, although with a lower density than on t lymphocytes. cd4+ t lymphocytes are active in inducing and helping the synthesis of immunoglobulins by b cells. cd4 is a receptor for the human immunodeficiency virus type i (hiv-1) envelope protein gp120. - BKMPFZ (Additional S&H Or Hazmat Fees May Apply)