Form:Supplied as a liquid in PBS, pH 7.2, 0.09% sodium azide and a stabilizer. Labeled with Allophycocyanin (APC).
Specificity:Recognizes and is highly reactive with human CD4 antigen (MW 59kD). Partially blocks binding of monoclonals to Leu-3a. Antibodies do not cross-block with gp129 and do not inhibit HIV induced syncytium formation.