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  4. Recombinant Human HLA class II histocompatibility antigen, DR alpha chain (HLA-DRA)

Recombinant Human HLA class II histocompatibility antigen, DR alpha chain (HLA-DRA)

In Stock
  • 中文名稱：
    人HLA-DRA重組蛋白
  • 貨號：
    CSB-EP360793HU
  • 規格：
    ￥1344
  • 圖片：
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • 其他：

產品詳情

  • 純度：
    Greater than 85% as determined by SDS-PAGE.
  • 基因名：
  • Uniprot No.：
  • 別名：
    DASS-397D15.1; DR alpha chain; DR alpha chain precursor; DRA_HUMAN; DRB1; DRB4; FLJ51114; Histocompatibility antigen HLA DR alpha; Histocompatibility antigen HLA-DR alpha; HLA class II histocompatibility antigen; HLA class II histocompatibility antigen DR alpha chain; HLA DR1B; HLA DR3B; HLA DRA; HLA DRA1; HLA DRB1; HLA DRB3; HLA DRB4; HLA DRB5; HLA-DR histocompatibility type; HLA-DRA; HLADR4B; HLADRA1; HLADRB; Major histocompatibility complex class II DR alpha; Major histocompatibility complex class II DR beta 1; Major histocompatibility complex class II DR beta 3; Major histocompatibility complex class II DR beta 4; Major histocompatibility complex class II DR beta 5; MGC117330; MHC cell surface glycoprotein; MHC class II antigen DRA; MHC II; MLRW; OTTHUMP00000029406; OTTHUMP00000029407
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    Full Length of Mature Protein
  • 來源：
    E.coli
  • 分子量：
    30.0 kDa
  • 表達區域：
    26-254aa
  • 氨基酸序列
    IKEEHVIIQAEFYLNPDQSGEFMFDFDGDEIFHVDMAKKETVWRLEEFGRFASFEAQGALANIAVDKANLEIMTKRSNYTPITNVPPEVTVLTNSPVELREPNVLICFIDKFTPPVVNVTWLRNGKPVTTGVSETVFLPREDHLFRKFHYLPFLPSTEDVYDCRVEHWGLDEPLLKHWEFDAPSPLPETTENVVCALGLTVGLVGIIIGTIFIIKGVRKSNAAERRGPL
    Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
    If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
  • 蛋白標簽：
    N-terminal 6xHis-tagged
  • 產品提供形式：
    Liquid or Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 緩沖液：
    Tris-based buffer,50% glycerol
  • 儲存條件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保質期：
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 貨期：
    3-7 business days
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet & COA：
    Please contact us to get it.

產品評價

靶點詳情

  • 功能：
    An alpha chain of antigen-presenting major histocompatibility complex class II (MHCII) molecule. In complex with the beta chain HLA-DRB, displays antigenic peptides on professional antigen presenting cells (APCs) for recognition by alpha-beta T cell receptor (TCR) on HLA-DR-restricted CD4-positive T cells. This guides antigen-specific T-helper effector functions, both antibody-mediated immune response and macrophage activation, to ultimately eliminate the infectious agents and transformed cells. Typically presents extracellular peptide antigens of 10 to 30 amino acids that arise from proteolysis of endocytosed antigens in lysosomes. In the tumor microenvironment, presents antigenic peptides that are primarily generated in tumor-resident APCs likely via phagocytosis of apoptotic tumor cells or macropinocytosis of secreted tumor proteins. Presents peptides derived from intracellular proteins that are trapped in autolysosomes after macroautophagy, a mechanism especially relevant for T cell selection in the thymus and central immune tolerance. The selection of the immunodominant epitopes follows two processing modes: 'bind first, cut/trim later' for pathogen-derived antigenic peptides and 'cut first, bind later' for autoantigens/self-peptides. The anchor residue at position 1 of the peptide N-terminus, usually a large hydrophobic residue, is essential for high affinity interaction with MHCII molecules.
  • 基因功能參考文獻：
    1. This study demonstrated that only the non-suicidal depressed subgroup revealed significantly lower microglial reaction, i.e., a decreased density of HLA-DR positive microglia versus both depressed suicide victims and controls. PMID: 28229240
    2. Low HLA-DRA expression is associated with sepsis. PMID: 28771573
    3. In this prospective study we evaluated dynamic changes in monocyte HLA-DR expression during sepsis in relation to changes in HLA-DRA gene expression and Class II transactivator (CIITA), measured by quantitative Real-Time Polymerase Chain Reaction (qRT-PCR). PMID: 27144640
    4. Case-control study in Han Chinese from the southwest of the country suggests that risk of ALS is increased by the AA genotype at rs9268856 in the HLA-DRA/HLA-DRB5 gene, but not by the SNPs rs9268877 in HLA-DRA/HLA-DRB5, rs1980493 in BTNL2 or rs302668 in RAB38/CTSC PMID: 28131168
    5. Kaposi's sarcoma-associated herpesvirus RTA not only downregulated HLA-DRalpha at the protein level through direct binding and degradation through the proteasome pathway but also indirectly downregulated the protein level of HLA-DRalpha by enhancing the expression of MARCH8, a member of the membrane-associated RING-CH (MARCH) proteins. PMID: 27356905
    6. The frequency of CD14(+)HLA-DR-/low MDSCs could be considered as a poor prognostic predictor in small-cell lung cancer (SCLC) and the elimination of MDSCs during medical interventions may improve the prognosis of SCLC patients. PMID: 25792471
    7. This meta-analysis showed that the HLA-DRA rs3129882 A/G polymorphism was not a risk factor for Parkinson's disease in Chinese. PMID: 24849299
    8. CD14+HLA-DR(-/low) cells were significantly increased in gastric cancer tissue and were shown to have a critical role in CD4+T-cell immunosuppression. PMID: 25695487
    9. No significant association was found for HLA-DRA/PARK18 rs3129882 polymorphism and Parkinson's disease risk (meta-analysis). PMID: 25720714
    10. The results suggest that rs3129882 polymorphism in HLA-DR may be a risk factor for Parkinson's disease in Iranian. PMID: 25319953
    11. Increased CD14+ monocytes with loss of HLA-DR expression were seen in patients with higher stage disease, more aggressive pathology, and in relapse or refractoriness to treatment. PMID: 24636145
    12. HLA-DRA variants predict penicillin allergy in genome-wide fine-mapping genotyping PMID: 25224099
    13. The effects of rs11248051 and rs1564282 variants of GAK, and the rs3129882 variant of HLA-DRA, were investigated in Parkinson's disease patients. PMID: 24039160
    14. The SNP rs3129882 in intron 1 of HLA-DRA has been shown to be most robustly associated with the Parkinson's disease. PMID: 23083294
    15. suggest that binding of MAM to HLA-DR leads to a conformational change in MAM structure allowing its interaction with TLR2 and TLR4 and a better recognition by T cells. PMID: 24493819
    16. The HLA-DRA variation rs3129882 is not associated with Parkinson's disease in Sweden.( PMID: 23579001
    17. The expression of human leucocyte antigen (HLA)-DR in epithelial cells and cluster of differentiation (CD8)-positive lymphocytes as possible markers of chronic ocular graft versus host disease, was investigated. PMID: 23878500
    18. HLA-DR4, PAD4 and STAT4 are overexpressed in rheumatoid arthritis and may be involved in the pathogenesis of RA. PMID: 20584675
    19. 2 SNPs in the HLA-DRA gene were studied in Caucasian patients from 2 large studies of alcohol dependence. rs2239803 & rs4935356 were associated with AD in both cohorts. PMID: 22890421
    20. Data indicate that 25 +/- 1.3% of CD74 and 17 +/- 0.3% of HLA-DR are colocalized. PMID: 22889831
    21. In this study observe no association between this single nucleotide polymorphism of HLA-DRA and Parkinson's disease in a Taiwanese population. PMID: 22243834
    22. genetic polymorphism is associated with the presence of nasal polyposis in asthmatic patients PMID: 22391069
    23. The rs3129882 noncoding variant in intron 1 of HLA-DRA is associated with late-onset sporadic Parkinson disease in a Chinese Han population. PMID: 21791235
    24. small interfering RNA-mediated knock-down of AIM2 resulted in reduced expression of HLA-DRA, HLA-DRB and CIITA in IFN-gamma-treated cells PMID: 21804607
    25. SNP1 is a Parkinson's disease-associated variant in HLA-DRA and is associated with HLA-DRA, DRB5 and DQA2 gene expression. PMID: 22096524
    26. Molecular Dynamics simulations of the MuBetaRho 83-99 (Phe91) and MuBetaRho 83-99 (Tyr91) peptide analogues in complex with HLA-DR2 (DRA, DRB1*1501) and T-cell receptors were performed. PMID: 21898163
    27. This study indicated that the association between rs3129882 and parkinson disease remains unclear and requires further study. PMID: 21482477
    28. HLA-DR(+) endothelial cells regulate the local inflammatory allogeneic response, promoting either an IL-6/STAT-3-dependent Th17 response or a contact-CD54-dependent regulatory response according to the cytokine environment. PMID: 21282653
    29. Upregulation of HLA-DRA is associated with acute pancreas allograft rejection. PMID: 20497195
    30. The skeletal muscles of myasthenia gravis up regulation of MHC class @@. PMID: 20546939
    31. predictive value of expression in diagnosis of acute promyelocytic leukemia PMID: 20232575
    32. Continuous veno-venous hemofiltration is effective in removal of many plasma cytokines and in improvement of monocyte HLA-DR expression in septic patients. PMID: 20202859
    33. DNMT1 and HLA-DRalpha are prognostic factors for hepatocelluar carcinoma. PMID: 18931722
    34. Data show that pollen grains triggered the production of IL-8, TNF-alpha, IL-6 and strongly upregulated the membrane expression of CD80, CD86, CD83, HLA-DR and caused only a slight increase in the expression of CD40. PMID: 20118277
    35. Findings show that Sug1 is crucial for regulating histone H3K4me3 and H3R17me2 at the cytokine inducible MHC-II and CIITA promoters. PMID: 19660582
    36. Studies indicate that five SNPs showed genome-wide significant association with MS: HLA-DRA, IL7R, IL2RA, CD58 and CLEC16A. PMID: 19834503
    37. P. gingivalis membrane vesicles apparently inhibited IFN-gamma-induced MHC class II (HLA-DRalpha) by disrupting the IFN-gamma signaling transduction pathway. PMID: 11854199
    38. IFN-gamma-induced HLA-DRA expression was inhibited by nitric oxide (NO) and antioxidants such as superoxide dismutase, catalase, pyrrolidine dithiocarbamate, and N-acetylcysteine PMID: 12006557
    39. The donor TNFRSF6 polymorphism dierctly or indirectly influences acute kidney rejection episodes. PMID: 14736971
    40. different regions of the cytoplasmic tails are involved in the association and the recruitment of HLA-DR(A & B1) into different compartments. HLA-DP and -DR interact differently with the cytoskeleton. PMID: 14976194
    41. Data show that Oct-1 occupies the endogenous HLA-DRA promoter when the HLA-DRA promoter is inactive in retinoblastoma protein-defective cells. PMID: 15105429
    42. Overexpression of HLA-DRA is associated with ovarian and other cancers PMID: 15467430
    43. Downregulation of HLA-DRA is associated with early intrahepatic recurrence of hepatocellular carcinoma PMID: 15688398
    44. Alleles of IL2RA and IL7RA and those in the HLA locus are identified as heritable risk factors for multiple sclerosis. PMID: 17660530
    45. HLA-DR alpha 2 domain (sHLA-DRalpha2) induces negative signals by engaging TIRC7 on lymphocytes, inhibiting proliferation and inducing apoptosis in CD4+ and CD8+ T-cells via activation of the intrinsic pathway PMID: 18270567
    46. although lysine 219 is absolutely required for modification of DRalpha, other features of the DRalpha tail act to limit the extent of ubiquitination. PMID: 19117940
    47. T cell receptor view of HLA-DRA in pocket 9 shows that the arrangement of residues in this pocket promotes anchoring of either large aliphatic or aromatic amino acids at this position. PMID: 19648278

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  • 亞細胞定位：
    Cell membrane; Single-pass type I membrane protein. Endoplasmic reticulum membrane; Single-pass type I membrane protein. Early endosome membrane; Single-pass type I membrane protein. Late endosome membrane; Single-pass type I membrane protein. Lysosome membrane; Single-pass type I membrane protein. Autolysosome membrane; Single-pass type I membrane protein.
  • 蛋白家族：
    MHC class II family
  • 組織特異性：
    Expressed in professional APCs: macrophages, dendritic cells and B cells (at protein level). Expressed in thymic epithelial cells (at protein level).
  • 數據庫鏈接：

    HGNC: 4947

    OMIM: 142860

    KEGG: hsa:3122

    STRING: 9606.ENSP00000378786

    UniGene: Hs.520048



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