Description
The RMP1-30 monoclonal antibody specifically recognizes CD279 which is also known as PD-1 (programmed death-1). CD279 (PD-1) is a ~55 kDa type I transmembrane glycoprotein that is encoded by Pdcd1 which belongs to the CD28/CTLA-4 family within the Ig superfamily. CD279 (PD-1) is comprised of an extracellular region with an IgV-like domain and an intracellular region with an immunoreceptor tyrosine-based inhibitory motif (ITIM) and an immunoreceptor tyrosine-based switch motif (ITSM) that are associated with inhibitory signaling functions. CD279 (PD-1) is transiently expressed on CD4-CD8- thymocytes and developing B lymphocytes at the pro-B-cell stage. It is also expressed on activated myeloid cells, B cells, and T cells including exhausted T cells found in mice during chronic viral infections or cancer. This co-inhibitory receptor reportedly functions in negative regulation of immune responses and thus helps guard against autoimmunity and preserves peripheral tolerance. CD273 (also known as PD-L2 or B7-DC) and CD274 (PD-L1 or B7-H1) are members of the B7 family within the Ig superfamily that serve as ligands for CD279 (PD-1). The RMP1-30 antibody reportedly does not block the binding of CD279 (PD-1) to these ligands.
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to Alexa Fluor® 647 under optimum conditions, and unreacted Alexa Fluor® 647 was removed.
1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
2. An isotype control should be used at the same concentration as the antibody of interest.
3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
4. The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
5. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
6. Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
7. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
8. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
