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  4. Rat Pulmonary Surfactant-associated protein D (SP-D) ELISA kit

Rat Pulmonary Surfactant-associated protein D (SP-D) ELISA kit

  • 中文名稱：
    大鼠肺表面活性物質(zhì)相關蛋白D(SP-D)酶聯(lián)免疫試劑盒
  • 貨號：
    CSB-E12632r
  • 規(guī)格：
    96T/48T
  • 價格：
    ￥3600/￥2500
  • 其他：

產(chǎn)品詳情

  • 產(chǎn)品描述：
    大鼠肺表面活性物質(zhì)相關蛋白D(SP-D)酶聯(lián)免疫試劑盒（CSB-E12632r）為雙抗夾心法ELISA試劑盒，定量檢測血清、血漿、組織勻漿樣本中的SFTPD含量。肺表面活性物質(zhì)相關蛋白D（SP-D）是一種在肺上皮細胞中表達的蛋白質(zhì)，具有膠原凝集素結(jié)構(gòu)域，參與肺泡表面活性物質(zhì)的穩(wěn)態(tài)和宿主防御。SP-D通過其凝集素結(jié)構(gòu)域與病原體結(jié)合，促進吞噬細胞的吞噬作用，并在急性肺損傷和肺氣腫等疾病中發(fā)揮重要作用。試劑盒檢測范圍為0.312 ng/mL-20 ng/mL，適用于科研領域探究肺部疾病模型（如肺纖維化、急性肺損傷或感染性疾?。┲蠸P-D的動態(tài)變化，也可用于評估藥物干預對肺表面活性物質(zhì)代謝的影響。本品僅用于科研，不用于臨床診斷，產(chǎn)品具體參數(shù)及操作步驟詳見產(chǎn)品說明書。
  • 別名：
    Sftpd ELISA Kit; Sftp4 ELISA Kit; Pulmonary surfactant-associated protein D ELISA Kit; PSP-D ELISA Kit; SP-D ELISA Kit; CP4 ELISA Kit; Lung surfactant protein D ELISA Kit
  • 縮寫：
  • Uniprot No.：
  • 種屬：
    Rattus norvegicus (Rat)
  • 樣本類型：
    serum, plasma, tissue homogenates
  • 檢測范圍：
    0.312 ng/mL-20 ng/mL
  • 靈敏度：
    0.078 ng/mL
  • 反應時間：
    1-5h
  • 樣本體積：
    50-100ul
  • 檢測波長：
    450 nm
  • 研究領域：
    Signal Transduction
  • 測定原理：
    quantitative
  • 測定方法：
    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.    
                 
  • 線性度：
    To assess the linearity of the assay, samples were spiked with high concentrations of rat SP-D 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)  
    1:5 Average % 88  
    Range % 82-92  
    1:10 Average % 94  
    Range % 90-99  
    1:20 Average % 95  
    Range % 91-101  
    1:40 Average % 94  
    Range % 90-98  
  • 回收率：
    The recovery of rat SP-D 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) 89 85-96  
    EDTA plasma (n=4) 92 87-98  
                 
                 
  • 標準曲線：
    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  
    20 2.689 2.697 2.693 2.508  
    10 2.001 2.054 2.028 1.843  
    5 1.555 1.579 1.567 1.382  
    2.5 1.112 1.165 1.139 0.954  
    1.25 0.687 0.697 0.692 0.507  
    0.625 0.442 0.475 0.459 0.274  
    0.312 0.382 0.396 0.389 0.204  
    0 0.184 0.186 0.185 　  
  • 數(shù)據(jù)處理：
  • 貨期：
    3-5 working days

產(chǎn)品評價

靶點詳情

  • 功能：
    Contributes to the lung's defense against inhaled microorganisms, organic antigens and toxins. Interacts with compounds such as bacterial lipopolysaccharides, oligosaccharides and fatty acids and modulates leukocyte action in immune response. May participate in the extracellular reorganization or turnover of pulmonary surfactant. Binds strongly maltose residues and to a lesser extent other alpha-glucosyl moieties.
  • 基因功能參考文獻：
    1. in acute lung injury, serum level increased from day 5, peaked on day 10, and then gradually decreased until day 28 PMID: 27541374
    2. SPA binds dipalmitoyl-phosphatidylcholine, the major surfactant lipid component, but not phosphatidylinositol; SPD exhibits the opposite preference. Data suggest flexibility in a key surface loop supports distinctive lipid binding of SPA; quadruple mutant SPA (E171D/P175E/R197N/K203D) that introduces SPD-like loop-stabilizing Ca2+ binding site in carbohydrate recognition domain exhibits ligand-binding preferences of SPD. PMID: 28719181
    3. In rat SP-D overexpressed mice, the lipopolysaccharide-induced levels of TNF-alpha and IL-10 in amniotic fluid and fetal serum and the expression of IL-10 in placenta and fetal membranes were significantly different from wild-type mice. PMID: 22892325
    4. Surfactant protein D modulated subpollen particle uptake in a cell type specific way (e.g. greater number of macrophages and epithelial cells, which participated in allergen particle uptake) and led to a decreased secretion of pro-inflammatory cytokines. PMID: 22296755
    5. Silica exposure causes dynamic changes of SP-D and CC16 protein expression in lung tissue and bronchoalveolar lavage fluid. PMID: 19080379
    6. An extended binding site for influenza A virus; calcium-dependent antiviral activity involves residues flanking the primary carbohydrate binding site as well as more remote residues displayed on the carbohydrate recognition domain surface. PMID: 20601494
    7. SP-D promotes attachment of allergen-containing subpollen particles to epithelial cells and may thus be involved in the inflammatory response to inhaled allergen. PMID: 20569420
    8. analysis of myeloperoxidase-dependent inactivation of surfactant protein D in vitro and in vivo PMID: 20228064
    9. Results suggest that SP-D-dependent processes regulating surfactant lipid homeostasis were disassociated from those mediating emphysema. PMID: 12163500
    10. Heterogeneous allele expression of SP-D mRNA in large intestine and other tissues. PMID: 12464693
    11. SP-A and SP-D are antimicrobial proteins that directly inhibit the proliferation of Gram-negative bacteria in a macrophage- and aggregation-independent manner by increasing the permeability of the microbial cell membrane PMID: 12750409
    12. SP-A and SP-D are antimicrobial proteins that directly inhibit the growth of Histoplasma capsulatum by increasing permeability of the organism PMID: 12857753
    13. SP-D interacts with chlamydial pathogens and enhance their phagocytosis into macrophages PMID: 15075250
    14. Degradation of pulmonary surfactant protein D by Pseudomonas aeruginosa elastase abrogates innate immune function PMID: 15123664
    15. SP-A and SP-D enhance mannose receptor-mediated phagocytosis of M. avium by macrophages PMID: 15187139
    16. results indicated SP-A & SP-D have distinct functions in lung homeostasis & the function of the neck domain & carbohydrate recognition domain of SP-D is dependent on its own NH2-terminal & collagenous domains that cannot be complemented by those of SP-A PMID: 16500946
    17. The ligand binding of homologous human, rat, and mouse trimeric trimeric neck plus carbohydrate recognition domain (neck+CRD) fusion proteins, each with identical N-terminal tags remote from the ligand-binding surface, was compared. PMID: 16514117
    18. VEGF increased expression of SP-D mRNA in preterm rat lung. PMID: 17267143
    19. Interactions with the side chain of inner core heptoses provide a potential mechanism for the recognition of diverse types of lipopolysaccharides by SP-D. PMID: 18092821
    20. These results show that antiviral activities of surfactant protein-D can be reproduced without the N-terminal and collagen domains and that cross-linking of these domains is essential for anti-influenza A virus activity. PMID: 18302538
    21. After OVA challenge alveolar epithelial cells Type II (AEII) show a significantly higher expression of SP-A and SP-D leading also to higher amounts of both SPs in BALF, and macrophages gather predominantly SP-A. PMID: 18802356
    22. S-nitrosylation of SP-D causes quaternary structural alterations and a swtich to its inflammatory signaling role. PMID: 19007302
    23. Multimerization of surfactant protein D, but not its collagen domain, is required for antiviral and opsonic activities related to influenza virus. PMID: 19017984

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  • 亞細胞定位：
    Secreted, extracellular space, extracellular matrix. Secreted, extracellular space, surface film.
  • 蛋白家族：
    SFTPD family
  • 數(shù)據(jù)庫鏈接：

    KEGG: rno:25350

    UniGene: Rn.11348



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