hC-Peptide Qkit (1 Kit)
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hC-Peptide Qkit (1 Kit)

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品牌: R&D Systems
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    产品介绍
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    Product Summary

    The Quantikine Human Insulin C-Peptide Immunoassay is a 2.5 hour solid-phase ELISA designed to measure human Insulin C-Peptide in cell culture supernates, serum, plasma, and urine. It contains synthetic human Insulin C-Peptide and has been shown to accurately quantitate the peptide. Results obtained using natural human Insulin C-Peptide showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human Insulin C-Peptide.

    Precision

    Intra-Assay Precision (Precision within an assay) Intra-assay Precision (Precision within an assay)
    Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
    Inter-Assay Precision (Precision between assays) Inter-assay Precision (Precision between assays)
    Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components

    Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine

    Intra-Assay PrecisionInter-Assay Precision
    Sample123123
    n202020202020
    Mean (pmol/L)129436845127437861
    Standard Deviation5.7714.313.212.43365.3
    CV%4.53.31.69.87.67.6

    Recovery

    The recovery of human Insulin C-Peptide spiked to levels throughout the range of the assay in various matrices was evaluated.

    Sample TypeAverage % RecoveryRange %
    Cell Culture Media (n=4)9984-106
    EDTA Plasma (n=4)10195-108
    Heparin Plasma (n=4)10290-115
    Serum (n=4)10396-109
    Urine (n=4)9781-106

    Linearity

    To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human Insulin C-Peptide were diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
    Human C-Peptide ELISA Linearity

    Scientific Data

    Human C-Peptide ELISA Standard Curve

    Assay Procedure

    Refer to the product for complete assay procedure.

    Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
    1.   Prepare all reagents, standard dilutions, and samples as directed in the product insert.
    2.   Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

    3. 100 µL Assay Diluent
    4.   Add 100 µL of Assay Diluent to each well.

    5. 100 µL Standard, Control, or Sample
    6.   Add 100 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 1 hour.
    7.   Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.

    8. 200 µL Conjugate
    9.   Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 1 hour.
    10.   Aspirate and wash 4 times.

    11. 200 µL Substrate Solution
    12.   Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.

    13. 50 µL Stop Solution
    14.   Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.

    Human C-Peptide Quantikine ELISA Kit Summary

    Assay Type
    Solid Phase Sandwich ELISA
    Format
    96-well strip plate
    Assay Length
    2.5 hours
    Sample Type & Volume Required Per Well
    Cell Culture Supernates (100 uL), Serum (50 uL), EDTA Plasma (50 uL), Heparin Plasma (50 uL), Urine (10 uL)
    Sensitivity
    2.88 pmol/L
    Assay Range
    28.9 - 1,850 pmol/L (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine)
    Specificity
    Natural and synthetic human Insulin C-Peptide.
    Cross-reactivity
    < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
    Interference
    No significant interference observed with available related molecules.
    背景
    别名
    C-P,C-Peptide,IDDM2,ILPR,Insulin C-Peptide,insulin,IRDN,MODY10,Proinsulin C-Peptide,proinsulin,Proinsulin C-Peptide
    背景

    Background: C-Peptide

    Insulin and the IGFs are members of the insulin family of molecules. IGF-I and II are structurally homologous to proinsulin, and can be thought of as taking the shape of an exaggerated, inverted letter G. Intrachain disulfide bonds link sections of the G. The single chain insulin propeptide consists of a 30 amino acid B chain (aa 2554), a C-peptide (aa 5589), and a 21 aa A chain (aa 90110). Removal of the C-peptide by proteolysis enables the formation of mature Insulin, a disulfidelinked heterodimer of the A and B chains. Circulating C-peptide levels are elevated in hyperinsulinism, obesity, and type II diabetes.

    Long Name:
    Proinsulin C-Peptide
    Entrez Gene IDs:
    3630 (Human); 16333 (Mouse); 397415 (Porcine); 280829 (Bovine); 483665 (Canine)
    Alternate Names:
    C-P; C-Peptide; IDDM2; ILPR; Insulin C-Peptide; insulin; IRDN; MODY10; Proinsulin C-Peptide; proinsulin
    制备和贮存
    保存方式

    Preparation and Storage

    Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
    Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
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    货号:
    DICP00
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