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Human Haptoglobin ELISA Kit

SKU:
HUFI00809
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
P00738
Sensitivity:
0.938ng/ml
Range:
1.563-100ng/ml
ELISA Type:
Sandwich
Synonyms:
HP, HP-1, hp2-alpha, HPA1S, binding peptide, BP, haptoglobin alpha, 1S-beta, haptoglobin alpha, 2FS-beta, haptoglobin, alpha polypeptide, haptoglobin, beta polypeptide, HP2AL, PHA2
Reactivity:
Human
Research Area:
Immunology
$599
Frequently bought together:

Description

Human Haptoglobin ELISA Kit

The Human Haptoglobin ELISA Kit is a cutting-edge tool for the precise measurement of haptoglobin levels in human biological samples. This advanced kit offers unparalleled sensitivity and specificity, guaranteeing accurate and consistent results for various research purposes.Haptoglobin is a vital protein involved in binding free hemoglobin, preventing oxidative damage and promoting tissue repair. Abnormal levels of haptoglobin have been associated with various health conditions such as hemolytic anemia, inflammation, and cardiovascular diseases, making it a valuable biomarker for understanding disease processes and developing targeted treatments.

With the Human Haptoglobin ELISA Kit, researchers can efficiently investigate the role of haptoglobin in disease pathogenesis and monitor its levels in clinical samples with ease. Trust in this reliable and innovative kit for your next research project.

Product Name:Human Haptoglobin ELISA Kit
Product Code:HUFI00809
Size:96 Assays
Alias:HP, HP-1, hp2-alpha, HPA1S, binding peptide, BP, haptoglobin alpha, 1S-beta, haptoglobin alpha, 2FS-beta, haptoglobin, alpha polypeptide, haptoglobin, beta polypeptide, HP2AL, PHA2
Detection method:Sandwich ELISA, Double Antibody
Application:This immunoassay kit allows for the in vitro quantitative determination of Human HP concentrations in serum plasma and other biological fluids.
Sensitivity:0.938ng/ml
Range:1.563-100ng/ml
Storage:4°C for 6 months
Note:For Research Use Only
Recovery:Matrices listed below were spiked with certain level of Human HP and the recovery rates were calculated by comparing the measured value to the expected amount of Human HP in samples.
MatrixRecovery range(%)Average(%)
serum(n=5)90-10597
EDTA plasma(n=5)91-10398
UFH plasma(n=5)91-10097
Linearity:The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human HP and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample1:21:41:8
serum(n=5)91-102%88-103%85-100%
EDTA plasma(n=5)82-99%93-100%82-101%
UFH plasma(n=5)83-94%90-99%86-100%
CV(%):Intra-Assay: CV<8%
Inter-Assay: CV<10%
ComponentQuantityStorage
ELISA Microplate (Dismountable)8×12 strips4°C for 6 months
Lyophilized Standard24°C/-20°C
Sample/Standard Dilution Buffer20ml4°C
Biotin-labeled Antibody(Concentrated)120ul4°C (Protect from light)
Antibody Dilution Buffer10ml4°C
HRP-Streptavidin Conjugate(SABC)120ul4°C (Protect from light)
SABC Dilution Buffer10ml4°C
TMB Substrate10ml4°C (Protect from light)
Stop Solution10ml4°C
Wash Buffer(25X)30ml4°C
Plate Sealer5-

Other materials and equipment required:

  • Microplate reader with 450 nm wavelength filter
  • Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
  • Incubator
  • Deionized or distilled water
  • Absorbent paper
  • Buffer resevoir
UniprotP00738
UniProt Protein Function:HP: Haptoglobin combines with free plasma hemoglobin, preventing loss of iron through the kidneys and protecting the kidneys from damage by hemoglobin, while making the hemoglobin accessible to degradative enzymes. Defects in HP are the cause of anhaptoglobinemia (AHP). AHP is a condition characterized by the absence of the serum glycoprotein haptoglobin. Serum levels of haptoglobin vary among normal persons: levels are low in the neonatal period and in the elderly, differ by population, and can be influenced by environmental factors, such as infection. Secondary hypohaptoglobinemia can occur as a consequence of hemolysis, during which haptoglobin binds to free hemoglobin. Belongs to the peptidase S1 family.
UniProt Protein Details:Protein type:Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 16q22.2

Cellular Component: extracellular space; extracellular region

Molecular Function:antioxidant activity; protein binding; hemoglobin binding; catalytic activity

Biological Process: receptor-mediated endocytosis; response to hydrogen peroxide; immune system process; metabolic process; defense response to bacterium; negative regulation of oxidoreductase activity; acute-phase response; defense response

Disease: Anhaptoglobinemia

NCBI Summary:This gene encodes a preproprotein, which is processed to yield both alpha and beta chains, which subsequently combine as a tetramer to produce haptoglobin. Haptoglobin functions to bind free plasma hemoglobin, which allows degradative enzymes to gain access to the hemoglobin, while at the same time preventing loss of iron through the kidneys and protecting the kidneys from damage by hemoglobin. Mutations in this gene and/or its regulatory regions cause ahaptoglobinemia or hypohaptoglobinemia. This gene has also been linked to diabetic nephropathy, the incidence of coronary artery disease in type 1 diabetes, Crohn's disease, inflammatory disease behavior, primary sclerosing cholangitis, susceptibility to idiopathic Parkinson's disease, and a reduced incidence of Plasmodium falciparum malaria. The protein encoded also exhibits antimicrobial activity against bacteria. A similar duplicated gene is located next to this gene on chromosome 16. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2014]
UniProt Code:P00738
NCBI GenInfo Identifier:123508
NCBI Gene ID:3240
NCBI Accession:P00738.1
UniProt Secondary Accession:P00738,P00737, Q0VAC4, Q0VAC5, Q2PP15, Q3B7J0, Q6LBY9 Q9UC67, B0AZL5,
UniProt Related Accession:P00738
Molecular Weight:
NCBI Full Name:Haptoglobin
NCBI Synonym Full Names:haptoglobin
NCBI Official Symbol:HP
NCBI Official Synonym Symbols:BP; HPA1S; HP2ALPHA2
NCBI Protein Information:haptoglobin; zonulin; binding peptide; haptoglobin alpha(1S)-beta; haptoglobin alpha(2FS)-beta; haptoglobin, beta polypeptide; haptoglobin, alpha polypeptide
UniProt Protein Name:Haptoglobin
UniProt Synonym Protein Names:ZonulinCleaved into the following 2 chains:Haptoglobin alpha chain; Haptoglobin beta chain
Protein Family:Haptoglobin
UniProt Gene Name:HP
UniProt Entry Name:HPT_HUMAN

*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.

StepProtocol
1.Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2.Aliquot 0.1ml standard solutions into the standard wells.
3.Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well.
4.Add 0.1 ml of properly diluted sample ( Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells.
5.Seal the plate with a cover and incubate at 37 °C for 90 min.
6.Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2.
7.Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall.
8.Seal the plate with a cover and incubate at 37°C for 60 min.
9.Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash.
10.Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min.
11.Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min.
12.Add 90 µl of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color.
13.Add 50 µl of Stop solution into each well and mix thoroughly. The color changes into yellow immediately.
14. Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample TypeProtocol
SerumIf using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

PlasmaCollect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal FluidCollect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell culture supernatantCollect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell lysatesSolubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Tissue homogenatesThe preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.
Tissue lysatesRinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast MilkCollect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.

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