Home / IL-29/IFN-lambda 1 / Human IL-29/IFN-lambda 1 DuoSet ELISA

Human IL-29/IFN-lambda 1 DuoSet ELISA

Catalog #: DY7246
11 Citations Datasheet / COA / SDS

Discontinued Product

DY7246 has been discontinued.
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Human IL-29 / IFN-lambda 1 ELISA Standard Curve
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Citations (11)
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Summary Product Features Kit Content Other Reagents Required Data Examples Product Datasheets Preparation and Storage Background

Human IL-29/IFN-lambda 1 DuoSet ELISA Summary

Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Sample Volume Required
100 µL
Assay Range
62.5 - 4,000 pg/mL
Sufficient Materials
For fifteen 96-well plates*
Specificity
Please see the product datasheet

* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.

This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human IL-29/IFN-lambda 1. The suggested diluent is suitable for the analysis of most cell culture supernate samples. Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet.

Product Features

  • Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
  • Development protocols are provided to guide further assay optimization
  • Assay can be customized to your specific needs
  • Economical alternative to complete kits

Kit Content

  • Capture Antibody
  • Detection Antibody
  • Recombinant Standard
  • Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)

Other Reagents Required

DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.

The components listed above may be purchased separately:

PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2 - 7.4, 0.2 µm filtered

Wash Buffer: (Catalog # WA126), or 0.05% Tween® 20 in PBS, pH 7.2-7.4

Reagent Diluent: (Catalog # DY995), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered

Substrate Solution: 1:1 mixture of Color Reagent A (H2O2) and Color Reagent B (Tetramethylbenzidine) (Catalog # DY999)

Stop Solution: 2 N H2SO4 (Catalog # DY994)

Microplates: R&D Systems (Catalog # DY990)

Plate Sealers: ELISA Plate Sealers (Catalog # DY992)

Scientific Data

N/A Human IL-29 / IFN-lambda 1 ELISA Standard Curve View Larger

Human IL-29 / IFN-lambda 1 ELISA Standard Curve

Product Datasheets

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Product Datasheet
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SDS

Preparation and Storage

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

Background: IL-29/IFN-lambda 1

Human/mouse IL-28A (IFN-lambda 2), IL-28B (IFN-lambda 3), and human IL-29 (IFN-lambda 1) are class II cytokine receptor ligands that are distantly related to members of the IL-10 family (11 - 13% amino acid (aa) sequence identity) and type I IFN family (15 - 19% aa sequence identity). These cytokines exert bioactivities that overlap those of type I IFNs, including antiviral activity and up-regulation of MHC class I antigen expression. The proteins signal through the same heterodimeric receptor complex that is composed of the IL-10 receptor beta (IL-10 R beta) and a novel IL-28 receptor alpha (IL-28 R alpha, also known as IFN-lambda R1). Mouse IL-28 shares 61%, 62%, and 52% aa identity with human IL-28A, IL-28B, and IL-29, respectively.

Long Name:
Interleukin 29
Entrez Gene IDs:
282618 (Human)
Alternate Names:
cytokine Zcyto21; IFNL1; IFN-lambda 1; IFN-lambda-1; IL29; IL-29; interferon lambda-1; interferon, lambda 1; interleukin 29 (interferon, lambda 1); interleukin-29; ZCYTO21

Assay Procedure

GENERAL ELISA PROTOCOL

Plate Preparation

  1. Dilute the Capture Antibody to the working concentration in PBS without carrier protein. Immediately coat a 96-well microplate with 100 μL per well of the diluted Capture Antibody. Seal the plate and incubate overnight at room temperature.
  2. Aspirate each well and wash with Wash Buffer, repeating the process two times for a total of three washes. Wash by filling each well with Wash Buffer (400 μL) using a squirt bottle, manifold dispenser, or autowasher. Complete removal of liquid at each step is essential for good performance. After the last wash, remove any remaining Wash Buffer by aspirating or by inverting the plate and blotting it against clean paper towels.
  3. Block plates by adding 300 μL Reagent Diluent to each well. Incubate at room temperature for a minimum of 1 hour.
  4. Repeat the aspiration/wash as in step 2. The plates are now ready for sample addition.

Assay Procedure

  1. Add 100 μL of sample or standards in Reagent Diluent, or an appropriate diluent, per well. Cover with an adhesive strip and incubate 2 hours at room temperature.
  2. Repeat the aspiration/wash as in step 2 of Plate Preparation.
  3. Add 100 μL of the Detection Antibody, diluted in Reagent Diluent, to each well. Cover with a new adhesive strip and incubate 2 hours at room temperature.
  4. Repeat the aspiration/wash as in step 2 of Plate Preparation.
  5. Add 100 μL of the working dilution of Streptavidin-HRP to each well. Cover the plate and incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
  6. Repeat the aspiration/wash as in step 2.
  7. Add 100 μL of Substrate Solution to each well. Incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
  8. Add 50 μL of Stop Solution to each well. Gently tap the plate to ensure thorough mixing.
  9. Determine the optical density of each well immediately, using a microplate reader set to 450 nm. If wavelength correction is available, set to 540 nm or 570 nm. If wavelength correction is not available, subtract readings at 540 nm or 570 nm from the readings at 450 nm. This subtraction will correct for optical imperfections in the plate. Readings made directly at 450 nm without correction may be higher and less accurate.

Citations for Human IL-29/IFN-lambda 1 DuoSet ELISA

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.

11 Citations: Showing 1 - 10
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  1. Restoration of dendritic cell homeostasis and Type I/Type III interferon levels in convalescent COVID-19 individuals
    Authors: A Rajamanick, NP Kumar, AN Pandiaraj, N Selvaraj, S Munisankar, RM Renji, V Venkatrama, M Murhekar, JWV Thangaraj, MS Kumar, CPG Kumar, T Bhatnagar, M Ponnaiah, R Sabarinath, V Saravanaku, S Babu
    BMC immunology, 2022-10-26;23(1):51.
    Species: Human
    Sample Types: Plasma
  2. Serum IL-28A/IFN-lambda2 is linked to disease severity of COVID-19
    Authors: Y Fukuda, T Homma, H Inoue, Y Goto, Y Sato, H Ikeda, C Onitsuka, H Sato, K Akimoto, T Ebato, H Suganuma, T Kawahara, H Mikuni, Y Uchida, S Suzuki, A Tanaka, H Sagara
    Scientific Reports, 2022-03-31;12(1):5458.
    Species: Human
    Sample Types: Serum
  3. Robust innate immune responses at the placenta during early gestation may limit in utero HIV transmission
    Authors: EL Johnson, D Swieboda, A Olivier, EAL Enninga, R Chakrabort
    PloS Pathogens, 2021-08-25;17(8):e1009860.
    Species: Human
    Sample Types: Cell Culture Supernates
  4. Impact of Inflammatory Immune Dysfunction in Psoriasis Patients at Risk for COVID-19
    Authors: TM Yendo, MN Sato, ACCC Branco, AJ Pietrobon, FME Teixeira, YÁL Ramos, RW Alberca, CG Valêncio, VN Arruda, R Romiti, M Arnone, ALDS Hirayama, AJDS Duarte, V Aoki, RL Orfali
    Vaccines, 2021-05-10;9(5):.
    Species: Human
    Sample Types: Plasma
  5. SARS-CoV-2 induces human plasmacytoid pre-dendritic cell diversification via UNC93B and IRAK4
    Authors: F Onodi, L Bonnet-Mad, L Meertens, L Karpf, J Poirot, SY Zhang, C Picard, A Puel, E Jouanguy, Q Zhang, J Le Goff, JM Molina, C Delaugerre, JL Casanova, A Amara, V Soumelis
    bioRxiv : the preprint server for biology, 2021-01-08;0(0):.
    Species: Human
    Sample Types: Cell Culture Supernates
  6. Diminished secretion and function of IL-29 is associated with impaired IFN-? response of neonatal plasmacytoid dendritic cells
    Authors: L Wisgrill, I Wessely, A Netzl, L Pummer, K Sadeghi, A Spittler, A Berger, E Förster-Wa
    J. Leukoc. Biol., 2019-06-18;0(0):.
    Species: Human
    Sample Types: Cell Culture Supernates
  7. HPV18 Persistence Impairs Basal and DNA Ligand-Mediated IFN-? and IFN-?Production through Transcriptional Repression of Multiple Downstream Effectors of Pattern Recognition Receptor Signaling
    Authors: S Albertini, I Lo Cigno, F Calati, M De Andrea, C Borgogna, V Dell'Oste, S Landolfo, M Gariglio
    J. Immunol., 2018-01-31;0(0):.
    Species: Human
    Sample Types: Cell Culture Supernates
  8. Organotypic models of type III interferon-mediated protection from Zika virus infections at the maternal-fetal interface
    Authors: J Corry, N Arora, CA Good, Y Sadovsky, CB Coyne
    Proc. Natl. Acad. Sci. U.S.A., 2017-08-07;0(0):.
    Species: Human
    Sample Types: Cell Culture Supernates
  9. Zika Virus Persistently Infects and Is Basolaterally Released from Primary Human Brain Microvascular Endothelial Cells
    Authors: MC Mladinich, J Schwedes, ER Mackow
    MBio, 2017-07-11;8(4):.
    Species: Human
    Sample Types: Cell Culture Supernates
  10. Differential Susceptibilities of Human Lung Primary Cells to H1N1 Influenza Viruses.
    Authors: Travanty E, Zhou B, Zhang H, Di Y, Alcorn J, Wentworth D, Mason R, Wang J
    J Virol, 2015-09-16;89(23):11935-44.
    Species: Human
    Sample Types: Cell Culture Supernates
  11. Trehalose-mediated autophagy impairs the anti-viral function of human primary airway epithelial cells.
    Authors: Wu Q, Jiang D, Huang C, van Dyk L, Li L, Chu H
    PLoS ONE, 2015-04-16;10(4):e0124524.
    Species: Human
    Sample Types: Cell Culture Supernates

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