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Human Plunc ELISA Kit is a Sandwich (quantitative) ELISA kit for the measurement of Human Plunc in Human in Plasma, Cell culture supernatant, Serum samples.

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ELISA - Human Plunc ELISA Kit (AB277427), expandable thumbnail

Key facts

Detection method
Colorimetric
Sample types
Plasma, Cell culture supernatant, Serum
Assay type
Sandwich (quantitative)
Reactive species
Human
Range
40.96 - 10000 pg/mL
Sensitivity
= 40 pg/mL

Reactivity data

Application
sELISA
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Lipid-binding protein which shows high specificity for the surfactant phospholipid dipalmitoylphosphatidylcholine (DPPC) (PubMed:25223608). Plays a role in the innate immune responses of the upper airways (PubMed:23132494, PubMed:23499554). Reduces the surface tension in secretions from airway epithelia and inhibits the formation of biofilm by pathogenic Gram-negative bacteria, such as P.aeruginosa and K.pneumoniae (PubMed:23132494, PubMed:23499554, PubMed:27145151). Negatively regulates proteolytic cleavage of SCNN1G, an event that is required for activation of the epithelial sodium channel (ENaC), and thereby contributes to airway surface liquid homeostasis and proper clearance of mucus (PubMed:24043776, PubMed:24124190). Plays a role in the airway inflammatory response after exposure to irritants (PubMed:11425234). May attract macrophages and neutrophils (PubMed:23132494).

Alternative names

What's included?

1 x 96 Tests
Components
20X Wash Buffer
1 x 25 mL
550X HRP-Streptavidin Concentrate
1 x 200 µL
5X Assay Diluent
1 x 15 mL
Anti-Human Plunc coated Microplate
1 x 1 Unit
Biotinylated Anti-Human Plunc Antibody
2 x 1 Vial
Human Plunc standard protein (Lyophilized)
2 x 1 Vial
Stop Solution
1 x 8 mL
TMB One-Step Substrate Reagent
1 x 12 mL

Recommended products

Human Plunc ELISA Kit is a Sandwich (quantitative) ELISA kit for the measurement of Human Plunc in Human in Plasma, Cell culture supernatant, Serum samples.

Key facts

Detection method
Colorimetric
Sample types
Plasma, Cell culture supernatant, Serum
Assay type
Sandwich (quantitative)
Reactive species
Human
Range
40.96 - 10000 pg/mL
Assay Platform
Pre-coated microplate (12 x 8 well strips)
Sensitivity
= 40 pg/mL

Precision

Intra assay

Sample
Overall
n
0
mean
-
SD
-
C.V.
< 10

Inter assay

Sample
Overall
n
0
mean
-
SD
-
C.V.
< 12

Recovery

Sample specific recovery

Sample type
Serum
Average %
= 142.7
Range
138 - 145 %
Sample type
Plasma
Average %
= 128.4
Range
76 - 147 %
Sample type
Cell culture media
Average %
= 119.2
Range
87 - 137 %

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Storage information
-20°C

Notes

Human Plunc ELISA Kit (ab277427) is an in-vitro enzyme-linked immunosorbent assay for the quantitative measurement of Human Plunc in serum, plasma and cell culture supernatants.

This assay employs an antibody specific for Human Plunc coated on a 96-well plate. Standards and samples are pipetted into the wells and Human Plunc present in a sample is bound to the wells by the immobilized antibody. The wells are washed, and biotinylated anti-Human Plunc antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of Human Plunc bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

The Palate Lung Nasal Epithelium Clone (PLUNC) also known as SPLUNC1 or BPI-fold containing family A member 1 is a protein involved in host defense mechanisms. It has a molecular mass of approximately 25 kDa. High expression levels are found in the upper respiratory tract where it plays a role in airway surface liquid homeostasis. You can also detect it in salivary glands and other mucosal surfaces. Its expression is linked to innate immunity providing a first line of defense.

Biological function summary

This protein functions to modulate the physical and chemical environment at mucosal surfaces. It helps maintain the integrity of epithelial barriers against pathogens. As part of no particular protein complex PLUNC acts as a surfactant with anti-microbial properties in respiratory tissues. It helps maintain the viscosity and hydration of airway secretions facilitating the trapping and clearance of inhaled pathogens and particles.

Pathways

PLUNC is implicated in innate immune responses and mucosal defense mechanisms. It interacts within pathways involving the regulation of inflammation and mucociliary clearance. Proteins related to PLUNC in these pathways include SBEM and the airway-specific secretory proteins. Through these interactions it helps the lungs manage both pathogen load and airway clearances such as mucociliary escalator actions necessary to protect the respiratory system.

Associated diseases and disorders

PLUNC is related to cystic fibrosis and chronic rhinosinusitis. In cystic fibrosis its regulation affects mucus viscosity and bacterial colonization potentially worsening respiratory symptoms. In chronic rhinosinusitis altered expression of PLUNC links to inflammation and recurrent infections. It connects with CFTR protein in cystic fibrosis impacting ion transport and mucociliary function. Through these mechanisms PLUNC can play a significant role in the progression of specific airway-related conditions.

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1 product image

  • ELISA - Human Plunc ELISA Kit (ab277427), expandable thumbnail

    ELISA - Human Plunc ELISA Kit (ab277427)

    These standard curves are for demonstration only. A standard curve must be run with each assay.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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