Biolegend, 311448, Ultra-LEAF™ Purified anti-human HLA-A,B,C Antibody, 100mg

MHC class I antigens associated with β2-microglobulin are expressed by all human nucleated cells. MHC class I molecules are involved in presentation of antigens to CD8 + T cells. They play an important role in cell-mediated immune responses and tumor surveillance.
100mg
Verified Reactivity: Human, Cynomolgus, Rhesus
Reported Reactivity: African Green, Baboon, Cat, Cow, Chimpanzee
Antibody Type: Monoclonal
Host Species: Mouse
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: FC - Quality tested Activ, Block, IHC-F, IP, WB - Reported in the literature, not verified in house
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤2.0 µg per million cells in 100 µl volume or 100 µl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Clone W6/32 recognizes residues in the N terminus of the human ß2-microglobulin molecule21.Additional reported applications (for the relevant formats) include: immunoprecipitaton2, Western blotting (non-reducing)3, immunohistochemical staining of acetone-fixed frozen tissue sections4,5, blocking6,7, inhibition of NK cell-mediated lysis10, and activation8,9. Clone W6/32 has been reported not to be suitable for immunohistochemistry on paraffin sections17. The LEAF™ purified antibody (Endotoxin < 0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays. For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 311428) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin < 0.01 EU/µg).
Application References(PubMed link indicates BioLegend citation): Darrow TL, et al. 1989. J. Immunol. 142:3329. Stern P, et al. 1987. J. Immunol. 138:1088. Tran TM, et al. 2001. Immunogenetics 53:440. Barbatis C, et al. 1981. Gut 22:985. Ayyoub M, et al. 2004. Cancer Immunity 4:7. DeFelice M, et al. 1990. Cell. Immunol. 126:420. Fayen J, et al. 1998. Int. Immunol. 10:1347. Turco MC, et al. 1988. J. Immunol. 141:2275. Geppert TD, et al. 1989. J. Immunol. 142:3763. Wooden SL, et al. 2005. J. Immunol. 175:1383. Nagano M, et al. 2007. Blood 110:151. McLoughlin RM,et al.2008. J. Immunol. 181:1323. PubMed Takahara M, et al.2008. J. Leukoc. Biol. 83:742. PubMed Lunemann A, et al.2008. J. Immunol. 181:6170. PubMed Laing BJ, et al. 2010. J. Thorac Cardiovasc Surg. 139:1402. PubMed Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC) Vambutas A, et al. 2000. Clin. Diagn. Lab. Immun. 7:79. Coppieters KT, et al. 2012. J. Exp. Med. 209:51. (epitope) Crivello P, et al. 2013. Hum Immunol. 22:100. PubMed Jung Y, et al. 2015. Mol Cancer Res. 13:197. PubMed Shields MJ. Ribaudo RK. 1998. Tissue Antigens. 51(5):567-70. (epitope)
Product Citations: Lin W, et al. 2023. Commun Biol. 6:447. PubMed Muik A, et al. 2022. Cancer Discov. 12:1248. PubMed Blandine Monel et al. 2019. Cell reports. 27(1):142-153 . PubMed Baleeiro RB, et al. 2022. Oncoimmunology. 11:2080329. PubMed Jensen SM, et al. 2018. Front Immunol. 9:2697. PubMed Ito T, et al. 2021. Commun Biol. 4:694. PubMed Dangaj D, et al. 2019. Cancer Cell. 35:885. PubMed Arakawa A, et al. 2021. J Immunol. 207:2235. PubMed Eleftheriadis T, et al. 2021. Mol Med Rep. :23. PubMed Meng Q, et al. 2021. J Immunother Cancer. 9:. PubMed
RRID: AB_2783175 (BioLegend Cat. No. 311427) AB_2561492 (BioLegend Cat. No. 311428) AB_2800814 (BioLegend Cat. No. 311441) AB_2800815 (BioLegend Cat. No. 311442) AB_2783176 (BioLegend Cat. No. 311447) AB_2783177 (BioLegend Cat. No. 311448)
Structure: Ig superfamily
Distribution: All nucleated cells
Function: Antigen presentation
Ligand/Receptor: CD3/TCR, CD8
Biology Area: Immunology, Innate Immunity
Molecular Family: MHC Antigens
Antigen References: 1. Barclay AN, et al. Eds. 1993. The Leukocyte Antigen FactsBook. Academic Press Inc. San Diego.
Gene ID: 3105
UniProt: View information about HLA-A on UniProt.org
Clone: W6/32
Regulatory Status: RUO
Other Names: Major Histocompatibility Class I, MHC class I
Isotype: Mouse IgG2a, κ
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.