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  4. Human High affinity immunoglobulin gamma Fc receptor I(FCGR1A) ELISA kit

Human High affinity immunoglobulin gamma Fc receptor I(FCGR1A) ELISA kit

  • 中文名称：
    人高亲和免疫球蛋白γFc受体I(FCGR1A)酶联免疫试剂盒
  • 货号：
    CSB-EL008537HU
  • 规格：
    96T/48T
  • 价格：
    ￥3600/￥2500
  • 其他：

产品详情

  • 产品描述：

    This Human FCGR1A ELISA Kit was designed for the quantitative measurement of Human FCGR1A protein in serum, plasma, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 0.78 ng/mL-50 ng/mL and the sensitivity is 0.2 ng/mL.

  • 别名：
    FCGR1A; FCG1; FCGR1; IGFR1; High affinity immunoglobulin gamma Fc receptor I; IgG Fc receptor I; Fc-gamma RI; FcRI; Fc-gamma RIA; FcgammaRIa; CD antigen CD64
  • 缩写：
  • Uniprot No.：
  • 种属：
    Homo sapiens (Human)
  • 样本类型：
    serum, plasma, tissue homogenates
  • 检测范围：
    0.78 ng/mL-50 ng/mL
  • 灵敏度：
    0.2 ng/mL
  • 反应时间：
    1-5h
  • 样本体积：
    50-100ul
  • 检测波长：
    450 nm
  • 研究领域：
    Immunology
  • 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 FCGR1A in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
    　 Sample Serum(n=4)
    1:1 Average % 95
    Range % 90-100
    1:2 Average % 88
    Range % 84-92
    1:4 Average % 97
    Range % 92-101
    1:8 Average % 102
    Range % 98-107
  • 回收率：
    The recovery of human FCGR1A 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 Type Average % Recovery Range
    Serum (n=5) 84 80-88
    EDTA plasma (n=4) 96 91-100
  • 标准曲线：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    ng/ml OD1 OD2 Average Corrected
    50 2.671 2.515 2.593 2.443
    25 2.004 1.973 1.989 1.839
    12.5 1.439 1.484 1.462 1.312
    6.25 0.927 0.942 0.935 0.785
    3.12 0.513 0.527 0.520 0.370
    1.56 0.358 0.369 0.364 0.214
    0.78 0.262 0.251 0.257 0.107
    0 0.151 0.148 0.150 　
  • 数据处理：
  • 货期：
    3-5 working days

产品评价

问答及客户评论

■ 常见问题解答
Q:

Please provide the following information regarding Human High affinity immunoglobulin gamma Fc receptor I, FCGR1A ELISA Kit (CSB-EL008537HU):
1.What is the standard? (Recombinant full-length protein? Partial protein
(range?)?, peptide (sequence range?), native protein?)
2. If recombinant protein, then what is the host?
3. Is the capture antibody a monoclonal or polyclonal?
4. What is the host of the capture antibody?
5. What is the immunogen of the capture antibody?
6. Is the detection antibody a monoclonal or polyclonal?
7. What is the host of the detection antibody?
8. What is the immunogen of the detection antibody?
9.What samples have been tested? Reference values?

A:
Thanks for your inquiry! CSB-EL008537HU
This kit is designed according to extracellular domain.
Capture antibody is mouse monoclonal antibody and immunogen is NS0-derived recombinant protein.( full length).
Detection antibody is goat polyclonal antibody and immunogen is NS0-derived recombinant protein. (fragment).
Standard is NS0-derived recombinant protein，sorry we can not disclose the sequence.
We tested serum and plasma before and the test value is 0.8-3ng/ml. Some individual samples can not be detected out.
Q:

We are looking for a ELISA kit that can detect CD64 from whole blood. This product could be of great use for our project. I have been looking for more details about the capture and detector antibodies that has been used in this ELISA. Unfortunately, I could not find much of information about that. Can you please let us know anything about the following queries
1. What type of detection and capture antibody has been used in this ELISA kit?
2. Do you sell the antibody pair in a solution rather than as a ELISA kit?
3. Can we get a sample to test them in our lab before ordering? In this regard, I want to let you know that it is a three years project which has just been started. If it serves our purpose, we will go for a bulk order.

A:
Thanks for your inquiry!
CD64 has 3 homologous genes: CD64A、CD64B and CD64C. They can be encoded to form 6 different mRNA transcripts.
Pls refer to: https://max.book118.com/html/2015/0613/18934425.shtm.
The study about 6 transcripts have shown that A gene coding has a higher affinity.
Pls refer to: https://www.ncbi.nlm.nih.gov/pubmed/9881690.
So usually CD64 is regarded as FCGR1A.
CSB-EL008537HU
Capture antibody is mouse monoclonal antibody and detection antibody is goat polyclonal antibody.
Sorry we can not sell the antibodies in the kit separately.
We can sell a 24T sample kit at $150 for you to have a try.
Pls let me know if you have any further questions. Thank you.

靶点详情

  • 功能：
    High affinity receptor for the Fc region of immunoglobulins gamma. Functions in both innate and adaptive immune responses.
  • 基因功能参考文献：
    1. The neutrophil/lymphocyte ratio is a better addition to C-reactive protein than CD64 index as a marker for infection in COPD. PMID: 28185443
    2. FcgammaRI functions as a regulator for immune inflammation via acceleration of NF-kappaB regulating NLRP3 inflammasome signaling PMID: 29920250
    3. HIV infection and HIV replication are associated with up-regulation of neutrophil CD64. PMID: 27221825
    4. Neutrophil CD64 distinguished sepsis and non-septic ICU patients. PMID: 28898742
    5. These results suggest that tyrosine phosphorylation may be critical in FcgammaRI-dependent endocytosis/phagocytosis that may be regulated by LILRB4 by triggering dephosphorylation of key signalling proteins. PMID: 27725776
    6. neutrophil CD64 elevated in septic neonates PMID: 27578316
    7. Neutrophil CD64 expression could be a good predictor as an immune parameter with high sensitivity and a negative predictive value for bacteremia in febrile neutropenic patients. PMID: 27348760
    8. investigated consequences of 3 nonsynonymous SNPs for FcgammaRI; only SNP V39I reduces immune-complex binding of FcgammaRI whereas monomeric IgG binding is unaffected; SNPs I301M and I338T have no influence on monomeric IgG or immune complex binding, but FcRgamma signaling is decreased for both SNPs PMID: 28814603
    9. Studies show that neutrophil CD64 (nCD64) is a reliable biomarker for diagnosing neonatal sepsis. PMID: 28791853
    10. Data revealed that Erythema Nodosum Leprosum neutrophils express CD64, presumably contributing to the immunopathogenesis of the disease. PMID: 27556927
    11. Our findings demonstrate that remarkable CD64 expression during Kawasaki dsease flare-ups may serve as a biomarker for diagnosis. PMID: 27020279
    12. Both activation by Fcgamma-receptor (FcgammaR) dependent and independent stimuli were inhibited by inactive pepsin, indicating inhibition occurs in a downstream signaling pathway used for releasing granules. PMID: 27368805
    13. FCGR1A expression is significantly upregulated in human masticatory mucosa during wound healing PMID: 28005267
    14. This study demonstrated that CD64 discriminates between critically ill patients with culture positive and negative sepsis and correlates with severity of disease. However, CD64 index is not a good predictor for 28-day mortality in the critically ill patient. PMID: 27565453
    15. CD64 seems to be a promising marker of infection in the intensive care setting, with Leuko64 showing a slight advantage PMID: 28097142
    16. An elevated neutrophil CD64 index was a reliable prognostic biomarker for both short-term and long-term mortality in patients admitted for acute exacerbation of Chronic obstructive pulmonary disease. PMID: 26922686
    17. Monocyte HLA-DR and neutrophil CD64 expression in critically ill infants with sepsis are related to age and infection. PMID: 26322411
    18. The three-dimensional structure of a human IgG1 Fc fragment bound to wild-type human Fc-gamma RI is reported PMID: 26527150
    19. Combinatorial immunophenotypic analyses showed that loss of PTEN expression with concomitant IGFR-1 expression correlated with poor disease-free survival PMID: 22759273
    20. Early RA patients display increased membrane and soluble CD64 and an impaired FcgammaR function correlating with joint disease activity. PMID: 26406605
    21. CD64 index, CRP and sCD14-ST served as good parameters to determine possible infection in patients that needed intensive care after major procedures. PMID: 25854904
    22. GZMA, GBP5 and CD64 genes show promise as a rapid diagnostic markers separating tuberculosis from other pulmonary diseases. PMID: 26025597
    23. hydrophobic pocket at the surface perfectly suited for residue Leu235 of Fc PMID: 25925696
    24. we address of monocytes functional status through assessment of the patterns of expression of Fcgamma receptors CD64, CD32, CD16 and CD180 receptor on monocytes from CLL patients and healthy individuals using specific mAbs and flow cytometry. PMID: 25802446
    25. FcgammaRI levels were found to not be associated with vascular leakage in dengue patients. PMID: 25566870
    26. The results indicate that conformational plasticity, as well as the openness of the upper CH2 region, is critical for FcgammaR binding and therapeutic effector functions of IgG antibodies. PMID: 26153451
    27. Neutrophil CD64 is a highly sensitive marker for suspected early-onset sepsis in preterm neonates. PMID: 25033045
    28. neutrophil CD64 expression tends to be low in the healthy state and increases in patients with advanced cancer even in the absence of active infection PMID: 26147145
    29. diagnostic accuracy of CD64 index to predict sepsis in critically ill patients PMID: 25324452
    30. Data show that the recombinant Fc gamma receptors FcgammaRIa, FcgammaRIIa, FcgammaRIIb, FcgammaRIIIa(Phe158/Val158), and FcgammaRIIIb glycosylation is complex and varied between receptors. PMID: 25345863
    31. Acute alcohol exposure decreased neutrophil CD64 expression in critically ill nontrauma patients. PMID: 24827394
    32. Data show that IgG4 is capable of transducing signal through FC gamma RI (FcgammaRI). PMID: 25484046
    33. Data indicate that monoclonal antibody Hu 15C1 simultaneously interacts with both Toll like receptor 4 (TLR4) and Fcgamma receptors (FcgammaRI or FcgammaRIIA) at the cell surface. PMID: 25484053
    34. Data suggest that the specific blocking of immunoglobulin G receptor CD64 by H22(scFv) could be used a possible anti-inflammatory mechanism for potentiating the effect of anti-tumor necrosis factor (TNF) antibodies. PMID: 25517313
    35. high expression of CD64 is an indicator important in the diagnosis of infection and sepsis. PMID: 25180450
    36. An elevated neutrophil CD64 index is associated with both mucosal inflammation and an increased risk for clinical relapse in pediatric Crohn disease. PMID: 24788216
    37. CD64 is expressed on neutrophils and monocytes in periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome during flares PMID: 24623459
    38. FCGR1A (high-affinity IgG Fc receptor 1 (CD64)) was the only marker expressed at significantly higher levels in participants with active tuberculosis. PMID: 24205913
    39. Describe biosensing techniques to evaluate the glycosylation pattern of monoclonal antibodies using the extracellular domains of CD64a. PMID: 24810583
    40. CD64 expression on neutrophils increases significantly in neonates with sepsis and is a useful diagnostic marker for early diagnosis of neonatal infection. PMID: 24463977
    41. As a surveillance biomarker, neutrophil CD64 detected LOS/NEC 1.5 days before clinical presentation, but at the expense of performing 41% additional sepsis evaluations PMID: 24046202
    42. Neutrophil CD64 (nCD64) expression was higher in patients with severe sepsis/septic shock (81.2%) and sepsis(78.8%) as compared to those with traumatic brain injury (5.5%) or controls (0.9%, p < 0.0001). PMID: 23452299
    43. FcgammaRI (CD64) promotes IgG-mediated inflammation, anaphylaxis, and antitumor immunotherapy. PMID: 23293080
    44. Screening identified 19 amino acid mutations contributing to the thermal stability and production rate of rhFcgammaRI PMID: 22967788
    45. Data indicate a tool for measuring antibodies triggering activation of FcgammaRIIIA, FcgammaRIIA or FcgammaRI receptors. PMID: 23023090
    46. Simultaneous quantitative analysis of CD64 and CD35 expression on neutrophils might be useful to distinguish between bacterial and viral infections in rheumatoid arthritis patients. PMID: 22237765
    47. observations suggest that serum amyloid P, at least in part, uses FcgammaRI and FcRgamma to inhibit fibrocyte differentiation PMID: 22493081
    48. Data indicate the simultaneous analysis of CD64 together with CD304 (Neuropilin-1) or the combination of CD11b and CD38 was suitable for the identification of rheumatoid arthritis (RA)patients with high current activity in synovitis. PMID: 22251373
    49. Neutrophil CD64 appears to be a better diagnostic test than traditional hematological assays. PMID: 22420242
    50. Expression of CD64 (FcgammaRI) in skin of patients with acute GVHD. PMID: 21243031

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  • 亚细胞定位：
    Cell membrane; Single-pass type I membrane protein. Note=Stabilized at the cell membrane through interaction with FCER1G.
  • 蛋白家族：
    Immunoglobulin superfamily, FCGR1 family
  • 组织特异性：
    Monocyte/macrophage specific.
  • 数据库链接：

    HGNC: 3613

    OMIM: 146760

    KEGG: hsa:2209

    STRING: 9606.ENSP00000358165

    UniGene: Hs.534956