Human CXCL6/GCP-2 Quantikine ELISA Kit

(6 citations)   
  • Assay Type
    Solid Phase Sandwich ELISA
  • Format
    96-well strip plate
  • Assay Length
    4.5 hours
  • Sample Type & Volume Required Per Well
    Cell Culture Supernates (25 uL), Serum (50 uL), EDTA Plasma (50 uL), Heparin Plasma (50 uL)
  • Sensitivity
    8 pg/mL
  • Assay Range
    31.2 - 2,000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
  • Specificity
    Natural and recombinant human GCP-2
  • 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.
Control Available
Product Summary
The Quantikine Human GCP-2 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human GCP-2 in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant human GCP-2 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human GCP-2 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 natural GCP-2.

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma
Intra-Assay Precision Inter-Assay Precision
Standard Deviation13.730.557.720.735.565.6


The recovery of GCP-2 spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 104 93-114
EDTA Plasma (n=5) 99 89-109
Heparin Plasma (n=5) 100 91-112
Serum (n=5) 95 88-104
To assess the linearity of the assay, samples containing or spiked with high concentrations of GCP-2 were serially diluted with the Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Human CXCL6/GCP-2 Quantikine ELISA Kit
Preparation and Storage
  • Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: CXCL6/GCP-2
GCP-2 (granulocyte chemotactic protein-2) is a CXC chemokine. Among human CXC chemokines, GCP-2 is most closely related to ENA-78. The structure and sequence of the genes for human GCP-2 and ENA-78 also exhibit close similarity, suggesting the two genes may have originated from a recent gene duplication. LIX (LPS-induced CXC chemokine) was initially cloned as a gene induced by LPS in mouse fibroblasts. The mouse protein designated GCP-2, because of its amino acid sequence similarity (60%) to human GCP-2, is identical to the LIX protein sequence.
    • Entrez Gene IDs
      6372 (Human);
    • Alternate Names
      chemokine (C-X-C motif) ligand 6 (granulocyte chemotactic protein 2); Chemokine alpha 3; CKA-3Granulocyte chemotactic protein 2; GCP-2; GCP2member 6 (granulocytechemotactic protein 2); GCP-2Small-inducible cytokine B6; Small inducible cytokine subfamily B (Cys-X-Cys), member b;
    Related Research Areas
    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. 50 µL Standard, Control, or Sample
    6.   Add 50 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
    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 2 hours.
    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.

    R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

    Showing Results 1 - 6 of 6
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    Sample Type
    1. L5, the most electronegative subfraction of plasma LDL, induces endothelial vascular cell adhesion molecule 1 and CXC chemokines, which mediate mononuclear leukocyte adhesion.
      Authors: Abe Y, Fornage M, Yang CY, Bui-Thanh NA, Wise V, Chen HH, Rangaraj G, Ballantyne CM
      Atherosclerosis, 2007;192(1):56-66.
      Species: Human
      Sample Type: Cell Culture Supernates
    2. Th1/Th2 cytokines reciprocally regulate in vitro pulmonary angiogenesis via CXC chemokine synthesis.
      Authors: Matsuda A, Fukuda S, Matsumoto K, Saito H
      Am. J. Respir. Cell Mol. Biol., 2007;38(2):168-75.
      Species: Human
      Sample Type: Cell Culture Supernates
    3. IL-17 enhances the net angiogenic activity and in vivo growth of human non-small cell lung cancer in SCID mice through promoting CXCR-2-dependent angiogenesis.
      Authors: Numasaki M, Watanabe M, Suzuki T, Takahashi H, Nakamura A, McAllister F, Hishinuma T, Goto J, Lotze MT, Kolls JK, Sasaki H
      J. Immunol., 2005;175(9):6177-89.
      Species: Human
      Sample Type: Cell Culture Supernates
    4. CXC-chemokine stimulation of neutrophils correlates with plasma levels of myeloperoxidase and lactoferrin and contributes to clinical outcome after pediatric cardiac surgery.
      Authors: Gessler P, Pretre R, Hohl V, Rousson V, Fischer J, Dahinden C
      Shock, 2004;22(6):513-20.
      Species: Human
      Sample Type: Plasma
    5. ELR+ CXC chemokines in human milk.
      Authors: Maheshwari A, Christensen RD, Calhoun DA
      Cytokine, 2003;24(3):91-102.
      Species: Human
      Sample Type: Serum
    6. High EMT Signature Score of Invasive Non-Small Cell Lung Cancer (NSCLC) Cells Correlates with NFkappaB Driven Colony-Stimulating Factor 2 (CSF2/GM-CSF) Secretion by Neighboring Stromal Fibroblasts.
      Authors: Rudisch A, Dewhurst M, Horga L, Kramer N, Harrer N, Dong M, van der Kuip H, Wernitznig A, Bernthaler A, Dolznig H, Sommergruber W
      PLoS ONE, 0;10(4):e0124283.
      Species: Human
      Sample Type: Cell Culture Supernates
    ELISA Controls
    Description Application Cat# Citations Images  

    Quantikine Immunoassay Control Group 8

    Ctrl QC23
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    Supplemental ELISA Products
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    Quantikine Wash Buffer 1

    ELISA WA126 5
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