BD CD56 PE Cy 7: NCAM16.2 ASR Analyte Specific Reagent, Catalog number 335809 Hematology: The CD 56 antigen promotes homophilic adhesion in neurons and may be involved in homophilic adhesion of NK cells.

Three lots of CD56 PE Cy 7, Catalog number 335809, contain a low amount of HLA-DR PE antibody which could result in an unexpected staining pattern.

BD Bioscience sent an Urgent Product Recall Letter dated July 2015, to all affected customers. The letter identified the product the problem and the action needed to be taken by the customer. Customer Actions : 1. If you have CD56 PE-Cy7 integrated into a Laboratory Developed Test (LDT) or panel, evaluate the impact of a false positive in the PE channel the interpretation of on the results. 2. Discard all remaining stock of CD56 PE-Cy7, Catalog Number 335809, lot number 4300708, 4304864, and/or 5013643, and request replacement product. BD will replace product at no cost. 3. As a requirement of our Regulatory Tracking Process, we request that you complete the enclosed Tracking/Verification form, even if you no longer have the affected reagents listed in your inventory. Please return the Tracking/ Verification form to BD Biosciences, per the instructions (mail, fax, or email). We apologize for any inconvenience that this may have caused and are working toward a long-term solution to this issue. If you require further assistance, please contact BD Customer Support at 877.232.8995 (prompt 3) in the United States. For customers outside the US, contact your local BD Biosciences representative or distributor.