CD21-VioBlue
Miltenyi Biotec B.V. & Co. KG · Model 170-081-022 · UDI-DI 04049934134371
Description
HB5 recognizes CD21, a type I membrane glycoprotein. Expression of CD21 in humans is found on B cells, follicular dendritic cells, subsets of epithelial cells, and thymic T cells. The primary function attributed to CD21 has been to amplify the B cell receptor (BCR)-mediated signal transduction in response to antigen recognition. To enhance the BCR mediated activation, CD21 associates with CD19 and CD81 in a B cell–specific signal transduction complex, where interaction of BCR with CR2/CD19 amplifies the signals. In addition, CD21 serves as a receptor for split products of complement protein C3, the gp350/220 viral coat protein of the EBV and the immunoregulatory protein CD23.
Recalls
| Date | Firm | Reason |
|---|---|---|
| 2025-11-03 | GET TESTED INTERNATIONAL AB | Distribution without premarket approval/clearance. |
| 2024-11-01 | Kreatech Biotechnology Bv | The DNA fragments for this specific lot number are too large, resulting in potential background around the cells due to suboptimal hybridization. An absence of signal could also be |
| 2024-02-01 | Abbott Molecular, Inc. | Products that were intended for export only which were not approved or registered in accordance with U.S. specifications were shipped to U.S. customers. |
| 2023-10-25 | Becton, Dickinson and Company, BD Biosciences | In vitro diagnostics product that impacts the quality of cell staining can cause low or dim fluorescence signal, which can lead to potential false negative results and misdiagnosis |
| 2023-05-24 | Cytocell Ltd. | DNAs used during the manufacture of two affected models were accidentally inverted during manufacturing. |
| 2023-05-24 | Cytocell Ltd. | DNAs used during the manufacture of two affected models were accidentally inverted during manufacturing. |
| 2022-10-27 | Cytocell Ltd. | Device is mislabeled. The package insert for this ASR device contains a chromomap - an image showing the position the FISH probe maps to on the specific chromosome. For this device |
| 2022-10-27 | Cytocell Ltd. | An error with the chromomap on version 1 of the package insert which is incorrect. The nucleotide locations specified in the insert are correct but the map has been created using t |
| 2022-03-25 | Becton, Dickinson and Company, BD Biosciences | Anti-Kappa APC & Anti-Kappa PE analyte reagents may exhibit uncharacteristic flow profiles. |
| 2022-03-25 | Becton, Dickinson and Company, BD Biosciences | Anti-Kappa APC & Anti-Kappa PE analyte reagents may exhibit uncharacteristic flow profiles. |
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