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Description: The monoclonal antibody GAP.A3 reacts with the human major histocompatibility complex (MHC) class I molecule HLA-A3, which is a member of the HLA-A family. HLA-A3 exists as two subtypes, HLA-A3.1 and HLA-A3.2, which differ at amino acid positions 152 and 156. MHC class I molecules are expressed on all nucleated cells. These molecules are highly polymorphic, cell surface glycoproteins that non-covalently associate with B2 microglobulin. MHC Class I molecules present intracellular peptides on the cell surface and nonnative peptides are recognized by circulating cytotoxic T lymphocytes. HLA-A3 is expressed by 15-25% of cancer patients and has been demonstrated to bind the tumor-associated antigen human telomerase reverse transcriptase (hTERT).
Applications Reported: This GAP.A3 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This GAP.A3 antibody has been pre-diluted and tested by flow cytometric analysis of normal human peripheral blood cells. This may be used at 5 µL (1.0 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.
Super Bright 436 can be excited with the violet laser line (405 nm) and emits at 436 nm. We recommend using a 450/50 bandpass filter, or equivalent. Please make sure that your instrument is capable of detecting this fluorochrome.
When using two or more Super Bright dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer for more information.
Excitation: 405 nm; Emission: 436 nm; Laser: Violet Laser
Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.
HLA-A belongs to the HLA class I heavy chain paralogues. This class I molecule is a heterodimer consisting of a heavy chain and a light chain (beta-2 microglobulin). The heavy chain is anchored in the membrane. Class I molecules play a central role in the immune system by presenting peptides derived from the endoplasmic reticulum lumen. They are expressed in nearly all cells. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the alpha1 and alpha2 domains, which both bind the peptide, exon 4 encodes the alpha3 domain, exon 5 encodes the transmembrane region, and exons 6 and 7 encode the cytoplasmic tail. Polymorphisms within exon 2 and exon 3 are responsible for the peptide binding specificity of each class one molecule. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. Hundreds of HLA-A alleles have been described.
HLA and MHC antibodies play a significant role in Immunopeptidomics, facilitating the identification and characterization of neoantigens through high-performance liquid chromatography coupled to tandem Mass Spectrometry.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Watch the video to learn how to use the Invitrogen Flow Cytometry Panel Builder to build your next flow cytometry panel in 5 easy steps.
Protein Aliases: A29 protein; antigen presenting molecule; HLA A; HLA class I antigen; HLA class I histocompatibility antigen, A alpha chain; HLA class I histocompatibility antigen, A-30 alpha chain; HLA class I histocompatibility antigen, A-33 alpha chain; HLA class I histocompatibility antigen, A-74 alpha chain; HLA locus; HLA-A; HLA-A locus alpha 2 domain; HLA-A null; HLA-Aw33.1; Human leukocyte antigen A; leukocyte antigen class I-A; MCH class I antigen; MHC class 1 antigen; MHC class I anti; MHC Class I antigen; MHC class I antigen A*30; MHC class I antigen A*33; MHC class I antigen A*74; MHC class I antigen heavy chain; MHC class I antigen HLA-A heavy chain; MHC class I antigen HLA-A33; MHC class I antigen null protein; MHC class I antigene; MHC class II antigen; MHC classI antigen; truncated MHC class I antigen
Gene Aliases: Aw-33; Aw-74; HLA-A; HLA-A11; HLA-A33; HLA-DQB1; HLA-DRB1; HLAA
UniProt ID: (Human) Q9TQM6
Entrez Gene ID: (Human) 3105
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