Human MBL Quantikine ELISA Kit

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DMBL00
Control Products Available
Human MBL ELISA Standard Curve
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Product Details
Procedure
Citations (2)
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Human MBL Quantikine ELISA Kit Summary

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 (50 uL), Serum (10 uL), EDTA Plasma (10 uL), Heparin Plasma (10 uL)
Sensitivity
0.029 ng/mL
Assay Range
0.2 - 10 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Specificity
Oligomeric forms of natural and recombinant human MBL
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.

Product Summary

The Quantikine Human MBL immunoassay is a 4.5 hour solid phase ELISA designed to measure human MBL in cell culture supernates, serum, and plasma. It contains NS0-expressed recombinant human MBL and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human MBL showed dose-response 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 of naturally occurring human MBL.

Precision

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
Sample 1 2 3 1 2 3
n 20 20 20 40 40 40
Mean (pg/mL) 0.91 2.05 4.06 1.02 2.06 4.14
Standard Deviation 0.03 0.07 0.22 0.08 0.14 0.29
CV% 3.3 3.4 5.4 7.8 6.8 7

Recovery

The recovery of MBL spiked to various levels throughout the range of the assay was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Supernates (n=6) 113 106-117

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of natural MBL were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Human MBL ELISA Linearity

Scientific Data

Human MBL ELISA Standard Curve

Product Datasheets

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Preparation and Storage

Shipping
The product is shipped with polar packs. 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.

Background: MBL

Mannan binding lectin (MBL) belongs to the collectin family of innate immune defense proteins, which bind an array of carbohydrate patterns on pathogen surfaces. Collectin family members share several common structural features including a N-terminal, cysteine-rich domain, a collagen-like region, an alpha-helical coiled-coil neck domain and a C-terminal, C-type (Ca2+-dependent ) lectin or carbohydrate recognition domain. MBL homotrimerizes to form a structural unit joined by N-terminal disulfide bonds. These homotrimers further associate into oligomeric structures of up to six units.

Long Name:
Mannose Binding Lectin
Entrez Gene IDs:
4153 (Human)
Alternate Names:
COLEC1; COLEC1collectin-1; Collectin-1; HSMBPC; Mannan-binding protein; mannose-binding lectin (protein C) 2, soluble (opsonic defect); mannose-binding lectin (protein C) 2, soluble; Mannose-binding lectin; mannose-binding protein C; MBL; MBL2; MBL2D; MBLmannan-binding lectin; MBP; MBP1; MBP1mannose-binding lectin 2, soluble (opsonic defect); MBP-C; MGC116832; MGC116833
&#9888; WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

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. 50 µL Assay Diluent
  4.   Add 50 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 on a horizontal orbital microplate shaker.
  7.   Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.

  8. 100 µL Conjugate
  9.   Add 100 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours on the shaker.
  10.   Aspirate and wash 4 times.

  11. 100 µL Substrate Solution
  12.   Add 100 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. PROTECT FROM LIGHT.

  13. 100 µL Stop Solution
  14.   Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.

Citations for Human MBL Quantikine ELISA Kit

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.

2 Citations: Showing 1 - 2
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  1. Association between mannose-binding lectin variants, haplotypes and risk of hepatocellular carcinoma: A case-control study
    Sci Rep, 2016-08-25;6(0):32147.
    Species: Human
    Sample Types: Plasma
  2. Mannose binding lectin is required for alphavirus-induced arthritis/myositis.
    Authors: Gunn BM, Morrison TE, Whitmore AC
    PLoS Pathog., 2012-03-22;8(3):e1002586.
    Species: Human
    Sample Types: Serum

FAQs

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