IL4I1 Antibody
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中文名稱：IL4I1兔多克隆抗體
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貨號：CSB-PA008635
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規格：￥1090
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其他：
產品詳情
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Uniprot No.：
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基因名：IL4I1
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別名：IL4I1 antibody; FIG1 antibody; UNQ636/PRO1265 antibody; L-amino-acid oxidase antibody; LAAO antibody; LAO antibody; EC 1.4.3.2 antibody; Interleukin-4-induced protein 1 antibody; IL4-induced protein 1 antibody; Protein Fig-1 antibody; hFIG1 antibody
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宿主：Rabbit
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反應種屬：Human
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免疫原：Synthesized peptide derived from the N-terminal region of Human IL-4I1.
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免疫原種屬：Homo sapiens (Human)
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標記方式：Non-conjugated
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抗體亞型：IgG
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純化方式：The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
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濃度：It differs from different batches. Please contact us to confirm it.
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保存緩沖液：Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
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產品提供形式：Liquid
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應用范圍：WB, ELISA
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推薦稀釋比：
Application Recommended Dilution WB 1:500-1:2000 ELISA 1:40000 -
Protocols：
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儲存條件：Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
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貨期：Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
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用途：For Research Use Only. Not for use in diagnostic or therapeutic procedures.
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靶點詳情
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功能：Secreted L-amino-acid oxidase that acts as a key immunoregulator. Has preference for L-aromatic amino acids: converts phenylalanine (Phe), tyrosine (Tyr) and tryptophan (Trp) to phenylpyruvic acid (PP), hydroxyphenylpyruvic acid (HPP), and indole-3-pyruvic acid (I3P), respectively. Also has weak L-arginine oxidase activity. Acts as a negative regulator of anti-tumor immunity by mediating Trp degradation via an indole pyruvate pathway that activates the transcription factor AHR. IL4I1-mediated Trp catabolism generates I3P, giving rise to indole metabolites (indole-3-acetic acid (IAA) and indole-3-aldehyde (I3A)) and kynurenic acid, which act as ligands for AHR, a ligand-activated transcription factor that plays important roles in immunity and cancer. AHR activation by indoles following IL4I1-mediated Trp degradation enhances tumor progression by promoting cancer cell motility and suppressing adaptive immunity. Also has an immunoregulatory function in some immune cells, probably by mediating Trp degradation and promoting downstream AHR activation: inhibits T-cell activation and proliferation, promotes the differentiation of naive CD4(+) T-cells into FOXP3(+) regulatory T-cells (Treg) and regulates the development and function of B-cells. Also regulates M2 macrophage polarization by inhibiting T-cell activation. Also has antibacterial properties by inhibiting growth of Gram negative and Gram positive bacteria through the production of NH4(+) and H2O2.
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基因功能參考文獻：
- the presence of IL4I1 during T-cell activation decreases early signaling events downstream of t-cell receptor stimulation, resulting in global T-cell inhibition which is more pronounced when there is CD28 costimulation. PMID: 28891065
- Data showed proteome changes in alveolar epithelial cells type II exposed to an infection with A. fumigatus with IL4I1 showing the most prominent increase in abundance both, in terms of relative abundance as well as activity. Also, in the infected lungs, there was levels of IL4I1 metabolic products. PMID: 28951444
- reviewed SNPs of the IL4I1 isoform 1, which is expressed in lymphoid tissue; the N92D SNP leads to a hyperactive enzyme, while the R102G mutation is hypomorphic; show that IL4I1 activity is not only directed against phenylalanine, as initially described, but also at a lower level against arginine PMID: 26673964
- The immunosuppressive enzyme IL4I1 expressed differentially in human induced Aiolos+, but not natural Helios+, FOXP3+ Treg cells. PMID: 25446972
- IL4I1 upregulation in human Th17 cells limits their TCR-mediated expansion not only by blocking the molecular pathway involved in the activation of the IL-2 promoter, but also by maintaining high levels of Tob1, which impairs entry into the cell cycle. PMID: 24307243
- IL4I1 plays a distinct role compared to other antibacterial enzymes produced by mononuclear phagocytes. PMID: 23355881
- participates in the downregulation of Th1 inflammation PMID: 20683900
- genomic structure, cDNA sequence, chromosome location and RNA expression in immune tissues PMID: 12031486
- is activated in primary mediastinal large B-cell lymphoma, which might be due to a constitutive activation of a cytokine signaling pathway PMID: 12446450
- hIL4I1 inhibited the proliferation of CD3-stimulated T lymphocytes with a similar effect on CD4(+) and CD8(+) T cells. In contrast, memory T cells were more strongly affected by hIL4I1 and its catabolite H(2)O(2) than naive T cells PMID: 17356132
- strong IL4I1 expression is associated with B-cell lymphomas. PMID: 19436310
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亞細胞定位：Secreted. Lysosome. Cytoplasmic vesicle, secretory vesicle, acrosome.
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蛋白家族：Flavin monoamine oxidase family, FIG1 subfamily
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組織特異性：Primarily found in immune tissues, with the highest expression in lymph nodes and spleen. Present in germinal center macrophages and inflammatory myeloid cells and antigen-presenting cells (at protein level). Also present in spermatozoa (at protein level)
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