{"product_id":"hla-drb1-polyclonal-antibody-bha10317515","title":"HLA-DRB1 Polyclonal Antibody","description":"\u003cdiv class=\"bhp-desc\"\u003e\n\u003cstyle\u003e\n.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}\n.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}\n.bhp-desc p{margin:0 0 12px}\n.bhp-desc .bhp-spec-table{width:100%;border-collapse:collapse;margin:12px 0 18px}\n.bhp-desc .bhp-spec-table th{width:36%;text-align:left;padding:8px 12px;background:#e8f0fb;color:#003366;font-weight:600;vertical-align:top;border:1px solid #ccd9f0}\n.bhp-desc .bhp-spec-table td{padding:8px 12px;vertical-align:top;border:1px solid #ccd9f0}\n.bhp-desc .bhp-qc-badge{display:inline-block;background:#e6f4ea;color:#1a7a3c;border:1px solid #a8d5b5;border-radius:4px;padding:6px 14px;font-size:14px;font-weight:600}\n.bhp-desc .bhp-warning-box{background:#fff8e6;border-left:4px solid #e6a817;padding:10px 14px;margin:10px 0 14px;border-radius:0 4px 4px 0}\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eHLA-DRB1 belongs to the HLA class II beta chain paralogs. The class II molecule is a heterodimer consisting of an alpha (DRA) and a beta chain (DRB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The beta chain is approximately 26-28 kDa. It is encoded by 6 exons. Exon one encodes the leader peptide; exons 2 and 3 encode the two extracellular domains; exon 4 encodes the transmembrane domain; and exon 5 encodes the cytoplasmic tail. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Hundreds of DRB1 alleles have been described and typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. DRB1 is expressed at a level five times higher than its paralogs DRB3, DRB4 and DRB5. DRB1 is present in all individuals. Allelic variants of DRB1 are linked with either none or one of the genes DRB3, DRB4 and DRB5. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9.\u003c\/p\u003e\n\n\u003ch2\u003eValidated Applications \u0026amp; Recommended Dilutions\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRecommended Dilution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWB\u003c\/td\u003e\n\u003ctd\u003e1:500-1:2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIHC\u003c\/td\u003e\n\u003ctd\u003e1:50-1:300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eAntibody Specifications\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget\u003c\/th\u003e\n\u003ctd\u003eHLA-DRB1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHost Species\u003c\/th\u003e\n\u003ctd\u003eRabbit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClonality\u003c\/th\u003e\n\u003ctd\u003ePolyclonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIsotype\u003c\/th\u003e\n\u003ctd\u003eIgG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConjugate\u003c\/th\u003e\n\u003ctd\u003eUnconjugated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePurification\u003c\/th\u003e\n\u003ctd\u003eAntigen Affinity Purification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConcentration\u003c\/th\u003e\n\u003ctd\u003e1.14 mg\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMolecular Weight\u003c\/th\u003e\n\u003ctd\u003eCalculated 30 kDa; Observed Refer to figures\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eImmunogen\u003c\/h2\u003e\n\u003cp\u003eFusion protein of human HLA-DRB1 UniProt: \u003ca href=\"https:\/\/www.uniprot.org\/uniprot\/Q5Y7A7\" target=\"_blank\"\u003eQ5Y7A7\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSpecies Reactivity \u0026amp; Cross-Reactivity\u003c\/h2\u003e\n\u003cp\u003eValidated for: Human. Verify suitability in your sample type prior to use. For species or applications not listed in the datasheet, consult our technical team before purchase.\u003c\/p\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cdiv class=\"bhp-warning-box\"\u003e\u003cp\u003eStore at -20℃ Valid for 12 months. Avoid freeze \/ thaw cycles.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Buffer:\u003c\/strong\u003e PBS with 0.05% NaN3 and 40% Glycerol,pH7.4\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cp\u003eBrowse additional antibodies targeting HLA-DRB1 and complementary reagents — including secondary antibodies, blocking buffers, and detection kits — available through BioHippo.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Elabscience Biotechnology Co Ltd","offers":[{"title":"20 uL","offer_id":53336491360621,"sku":"E-AB-52724_20μL","price":73.0,"currency_code":"USD","in_stock":true},{"title":"60 uL","offer_id":53336672469357,"sku":"E-AB-52724_60μL","price":143.0,"currency_code":"USD","in_stock":true},{"title":"120 uL","offer_id":53336672502125,"sku":"E-AB-52724_120μL","price":240.0,"currency_code":"USD","in_stock":true},{"title":"200 uL","offer_id":53336672534893,"sku":"E-AB-52724_200μL","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/j5mDCC.jpg?v=1778921048","url":"https:\/\/www.ebiohippo.com\/products\/hla-drb1-polyclonal-antibody-bha10317515","provider":"BioHippo","version":"1.0","type":"link"}