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Human Beta-klotho(KLB) ELISA kit

  • 中文名称：
    人β-克洛素(KLB)酶联免疫试剂盒
  • 货号：
    CSB-EL012378HU
  • 规格：
    96T/48T
  • 价格：
    ￥3600/￥2500
  • 其他：

产品详情

  • 产品描述：

    This Human KLB ELISA Kit was designed for the quantitative measurement of Human KLB protein in serum, plasma, tissue homogenates, cell lysates. It is a Sandwich ELISA kit, its detection range is 62.5 pg/mL-4000 pg/mL and the sensitivity is 15.6 pg/mL.

  • 别名：
    Beta-klotho ELISA Kit; BetaKlotho ELISA Kit; BKL ELISA Kit; KLB ELISA Kit; KLOTB_HUMAN ELISA Kit; Klotho beta like protein ELISA Kit; Klotho beta-like protein ELISA Kit
  • 缩写：
  • Uniprot No.：
  • 种属：
    Homo sapiens (Human)
  • 样本类型：
    serum, plasma, tissue homogenates, cell lysates
  • 检测范围：
    62.5 pg/mL-4000 pg/mL
  • 灵敏度：
    15.6 pg/mL
  • 反应时间：
    1-5h
  • 样本体积：
    50-100ul
  • 检测波长：
    450 nm
  • 研究领域：
    Metabolism
  • 测定原理：
    quantitative
  • 测定方法：
    Sandwich
  • 精密度：
    Intra-assay Precision (Precision within an assay): CV%<8%
    Three samples of known concentration were tested twenty times on one plate to assess.
    Inter-assay Precision (Precision between assays): CV%<10%
    Three samples of known concentration were tested in twenty assays to assess.
  • 线性度：
    To assess the linearity of the assay, samples were spiked with high concentrations of human KLB in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
    SampleSerum(n=4)
    1:1Average %102
    Range %96-105
    1:2Average %88
    Range %84-92
    1:4Average %94
    Range %89-98
    1:8Average %92
    Range %88-94
  • 回收率：
    The recovery of human KLB spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
    Sample TypeAverage % RecoveryRange
    Serum (n=5) 10296-106
    EDTA plasma (n=4)8882-92
  • 标准曲线：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    pg/mlOD1OD2AverageCorrected
    40002.372 2.278 2.325 2.223
    20001.746 1.844 1.795 1.693
    10001.396 1.293 1.345 1.243
    5000.972 0.961 0.967 0.865
    2500.588 0.576 0.582 0.480
    1250.354 0.368 0.361 0.259
    62.50.225 0.230 0.228 0.126
    00.103 0.101 0.102
  • 数据处理：
  • 货期：
    3-5 working days

产品评价

靶点详情

  • 功能：
    Contributes to the transcriptional repression of cholesterol 7-alpha-hydroxylase (CYP7A1), the rate-limiting enzyme in bile acid synthesis. Probably inactive as a glycosidase. Increases the ability of FGFR1 and FGFR4 to bind FGF21.
  • 基因功能参考文献：
    1. Knockdown of beta-Klotho produced the opposite effects. In conclusion, beta-Klotho inhibits EMT and plays a tumorsuppressive role in prostate cancer (PCa) , linking FGF/FGFR/beta-Klotho signaling to the regulation of PCa progression. PMID: 29749458
    2. crystal structures of free and ligand-bound beta-klotho extracellular regions that reveal the molecular mechanism that underlies the specificity of FGF21 towards beta-klotho and demonstrate how the FGFR is activated in a klotho-dependent manner PMID: 29342135
    3. the metabolic FGF21/KLB/FGFR1 pathway is involved in congenital hypogonadotropic hypogonadism (CHH) Genetic screening of 334 CHH patients identified seven heterozygous loss-of-function KLB mutations in 13 patients (4%). Most patients with KLB mutations (9/13) exhibited metabolic defects. PMID: 28754744
    4. We conducted a genome-wide association meta-analysis and replication study among >105,000 individuals of European ancestry and identified beta-Klotho (KLB) as a locus associated with alcohol consumption (rs11940694; P = 9.2 x 10(-12)). PMID: 27911795
    5. A high expression level of KLbeta, but not KLalpha, was an independent predictive factor of short progression free survival for non-muscle invasive bladder cancer PMID: 27573985
    6. Our results suggest that KLbeta plays important roles in tumor invasion and progression, and its concentration may be a valuable urinebased marker for the detection of bladder cancer. PMID: 27573985
    7. obesity appears as the predominant determinant of the abnormalities in FGF21 and FGF19 levels. Opposite changes in beta-Klotho expression in fat and liver indicate potential tissue-specific alterations in the responsiveness to endocrine FGFs in obesity PMID: 24813368
    8. ATF4 signaling pathway is essential for mediating the effect of ER stress on beta-klotho expression. PMID: 25727012
    9. Variants in genes involved in feedback regulation of bile acid synthesis (KLB, P=0.06 and FGFR4, P=0.09) were potentially associated with the irritable bowel syndrome-diarrhea subgroup with elevated serum C4. PMID: 25070056
    10. In-depth DNA sequencing identified additional genetic coding and noncoding variants in KLB that are associated with fecal bile acids excretion or colonic transit in Irritable bowel syndrome-diarrhea. PMID: 24200957
    11. betaKlotho suppresses tumor growth in hepatocellular carcinoma by regulating Akt/GSK-3beta/cyclin D1 signaling pathway. PMID: 23383245
    12. KLB and FGFR1 form a 1:1 heterocomplex independent of the galectin lattice that transitions to a 1:2 complex upon the addition of FGF21. PMID: 22523080
    13. KLB-silencing in Huh7 cells decreased cell proliferation and suppressed FGFR4 downstream signaling. PMID: 22439738
    14. Differential specificity of endocrine FGF19 and FGF21 to FGFR1 and FGFR4 in complex with KLB. PMID: 22442730
    15. Deletion of the D1 and the D1-D2 linker (the D1/linker region) from FGFR1c led to beta-Klotho-independent receptor activation by FGF21, suggesting that there may be a direct interaction between FGF21 and the D1/linker region-deficient FGFR1c. PMID: 22248288
    16. Polymorphism KLB rs4975017 may influence the colonic transit response to colesevelam in female patients with irritable bowel syndrome with diarrhea. PMID: 22271411
    17. Data suggest that KLB is an important regulator in the immortalization of HCECs by facilitating FGF19 growth factor signaling. PMID: 22020932
    18. Sulfated glycosaminoglycans are required for specific and sensitive fibroblast growth factor (FGF) 19 signaling via FGF receptor 4 and betaKlotho. PMID: 21653700
    19. A functional KLB gene variant mediating protein stability associates with colonic transit in irritable bowel syndrome with diarrhea. This association is modulated by 2 genetic variants in FGFR4. PMID: 21396369
    20. Metabolic regulator betaKlotho interacts with fibroblast growth factor receptor 4 (FGFR4) to induce apoptosis and inhibit tumor cell proliferation. PMID: 20657013
    21. The down-regulation of the renal klotho gene could increase renal damage induced by angiotensin II, while klotho gene induction could have therapeutic possibilities in treating angiotensin II-induced kidney damage. PMID: 16358222
    22. Liver-specific activities of FGF19 require Klotho beta. PMID: 17627937
    23. a functional FGF19 receptor may consist of FGF receptor (FGFR) and heparan sulfate complexed with either alphaKlotho or betaKlotho PMID: 17711860
    24. High expression of Klotho is associated with ovarian disease progression PMID: 18259951
    25. Both FGF23 and FGF21 require intact alpha or betaKlotho for signaling, respectively, whereas FGF19 can signal through a Klotho chimera consisting of the N terminus of alphaKlotho and the C terminus of betaKlotho. PMID: 18829467
    26. These data demonstrate that the C-terminus of FGF21 is critical for binding to beta-Klotho and the N-terminus is critical for fibroblast growth factor receptor (FGFR) activation. PMID: 19059246

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  • 亚细胞定位：
    Cell membrane; Single-pass type III membrane protein.
  • 蛋白家族：
    Glycosyl hydrolase 1 family, Klotho subfamily
  • 数据库链接：

    HGNC: 15527

    OMIM: 611135

    KEGG: hsa:152831

    STRING: 9606.ENSP00000257408

    UniGene: Hs.90756