Recombinant Human L-amino-acid oxidase (IL4I1), partial

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中文名稱：

Recombinant Human L-amino-acid oxidase (IL4I1), partial
貨號：

CSB-EP850426HU1
說明書：

MSDS Datasheet
規格：

￥1836
圖片：
(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
其他：

產品詳情
產品評價
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靶點詳情

產品詳情

純度：

Greater than 90% as determined by SDS-PAGE.
生物活性：

Not Test
基因名：

IL4I1
Uniprot No.：

Q96RQ9
別名：

LAAO;LAO;Interleukin-4-induced protein 1;IL4-induced protein 1;hIL4I1;Protein Fig-1;hFIG1
種屬：

Homo sapiens (Human)
蛋白長度：

Partial
來源：

E.coli
分子量：

61.0 kDa
表達區域：

30-513aa
氨基酸序列

QDPFEKCMQDPDYEQLLKVVTWGLNRTLKPQRVIVVGAGVAGLVAAKVLSDAGHKVTILEADNRIGGRIFTYRDQNTGWIGELGAMRMPSSHRILHKLCQGLGLNLTKFTQYDKNTWTEVHEVKLRNYVVEKVPEKLGYALRPQEKGHSPEDIYQMALNQALKDLKALGCRKAMKKFERHTLLEYLLGEGNLSRPAVQLLGDVMSEDGFFYLSFAEALRAHSCLSDRLQYSRIVGGWDLLPRALLSSLSGLVLLNAPVVAMTQGPHDVHVQIETSPPARNLKVLKADVVLLTASGPAVKRITFSPPLPRHMQEALRRLHYVPATKVFLSFRRPFWREEHIEGGHSNTDRPSRMIFYPPPREGALLLASYTWSDAAAAFAGLSREEALRLALDDVAALHGPVVRQLWDGTGVVKRWAEDQHSQGGFVVQPPALWQTEKDDWTVPYGRIYFAGEHTAYPHGWVETAVKSALRAAIKINSRKGPASD
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：

C-terminal 6xHis-tagged
產品提供形式：

Liquid or Lyophilized powder Warning: in_array() expects parameter 2 to be array, null given in /www/web/cusabio_cn/public_html/caches/caches_template/default/content/show_product_protein.php on line 662
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：

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
復溶：

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
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℃ for up to one week.
Datasheet & COA：

Please contact us to get it.

產品評價

靶點詳情

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.
基因功能參考文獻：
1. 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
2. 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
3. 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
4. The immunosuppressive enzyme IL4I1 expressed differentially in human induced Aiolos+, but not natural Helios+, FOXP3+ Treg cells. PMID: 25446972
5. 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
6. IL4I1 plays a distinct role compared to other antibacterial enzymes produced by mononuclear phagocytes. PMID: 23355881
7. participates in the downregulation of Th1 inflammation PMID: 20683900
8. genomic structure, cDNA sequence, chromosome location and RNA expression in immune tissues PMID: 12031486
9. is activated in primary mediastinal large B-cell lymphoma, which might be due to a constitutive activation of a cytokine signaling pathway PMID: 12446450
10. 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
11. 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.
蛋白家族：

Flavin monoamine oxidase family, FIG1 subfamily
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)
數據庫鏈接：

HGNC: 19094

OMIM: 609742

KEGG: hsa:259307

STRING: 9606.ENSP00000342557

UniGene: Hs.574492