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AB260058

Human CRP ELISA Kit (C-Reactive protein)

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(17 Publications)

Human CRP ELISA Kit (C-Reactive protein) is a single-wash 90-min Simplestep used to quantify Human CRP (C-Reactive protein) with a sensitivity of 5.36 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.

- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Different formats for different needs: 10x96 plates for bulk orders
- Validated on a number of sample types including cerebrospinal fluid (CSF)
- Design your own immunoassay: we also offer the conjugation-ready antibody pair

View Alternative Names

PTX1, CRP, C-reactive protein

11 Images
ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • ELISA

Supplier Data

ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Human CRP ELISA kit comparison.

Standard Curve comparison between ab260058 and ab181416 SimpleStep ELISA kits. ab260058 SimpleStep ELISA® kit shows comparable sensitivity.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Example of human CRP standard curve in Sample Diluent NS.

The CRP standard curve was prepared as described in Section 10. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Three concentrations of CRP recombinant protein were spiked in duplicate to the indicated biological matrix to evaluate signal recovery in the working range of the assay.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Linearity of dilution.

Recombinant CRP was spiked into the following biological samples and diluted in a 2-fold dilution series in Sample Diluent NS.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Example of human CRP standard curve in Sample Diluent NS. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Human CRP standard curve comparison.

Standard Curve comparison between human CRP SimpleStep ELISA kit and traditional ELISA kit from leading competitor. SimpleStep ELISA kit shows increased sensitivity.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Serum from ten individual healthy human male donors was measured in duplicate.

Interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean CRP concentration was determined to be 535.7 ng/mL with a range of 28.1 – 1180.4 ng/mL.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Linearity of dilution is determined based on interpolated values from the standard curve. Linearity of dilution defines a sample concentration interval in which interpolated target concentrations are directly proportional to sample dilution.

Native CRP was measured in the following biological samples in a 2-fold dilution series. Sample dilutions are made in Sample Diluent NS.

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Interpolated concentrations of native CRP in human serum and plasma samples.

The concentrations of CRP were measured in duplicates, interpolated from the CRP standard curves and corrected for sample dilution. Undiluted samples are as follows : serum 1 : 1000, plasma (citrate) 1 : 2000, plasma (EDTA) 1 : 1000, plasma (heparin) 1 : 1000. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean CRP concentration was determined to be 1025.5 ng/mL in serum, 1676.5 ng/mL in plasma (citrate) and 668.3 ng/mL in plasma (EDTA), and, 1062.8 ng/mL in plasma (heparin).

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)
  • sELISA

Supplier Data

Sandwich ELISA - Human CRP ELISA Kit (C-Reactive protein) (AB260058)

Interpolated concentrations of human CRP in cerebrospinal fluid.

Interpolated concentration of native CRP was measured in duplicate at different sample concentrations. Undiluted samples are 12.5%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). Sample dilutions are made in Sample Diluent NS.

Key facts

Detection method

Colorimetric

Sample types

Cerebral Spinal Fluid, Heparin Plasma, Citrate plasma, Cell culture supernatant, Serum, EDTA Plasma

Reacts with

Human

Assay type

Sandwich (quantitative)

Sensitivity

= 5.36 pg/mL

Range

18.75 - 1200 pg/mL

Assay time

1h 30m

Assay Platform

Pre-coated microplate (12 x 8 well strips)

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Human CRP ELISA Kit (C-Reactive protein) ab260058 is a rapid single-wash 90-min Sandwich ELISA to measure Human CRP (C-Reactive protein)in cell culture supernatant, CSF, citrate plasma, EDTA plasma, heparin plasma, serum. This SimpleStep sensitivity is 5.36 pg/mL.

How the assay works

Human CRP (C-Reactive protein)SimpleStep ELISA®employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details.

Assay Specificity

Our SimpleStep ELISA® kits use recombinant monoclonal antibodies rigorously validated to ensure the highest level of consistency and reproducibility, improved sensitivity and specificity and ease of scalability and security of supply.
Please refer to our protocol booklet for more details.

Human CRP ELISA Kit (C-Reactive protein) ab260058 protocol summary

1. Mix: add samples/standards to the wells together with the capture and detector antibody cocktail. Incubate 1 hr at room temperature
2. Wash
3. Add TMB development solution - incubate for 10 min
4. Add Stop solution
5. Read the results on a plate reader at 450 nm

Precision

[ { "reproducibilityType": "Inter", "sample": "Serum", "replicates": 3, "mean": null, "standardDeviation": null, "coefficientOfVariability": "4" }, { "reproducibilityType": "Intra", "sample": "Serum", "replicates": 8, "mean": null, "standardDeviation": null, "coefficientOfVariability": "1.4" } ]

Recovery

[ { "sample": "Cerebral Spinal Fluid", "range": "80 - 101 %", "average": "= 88" }, { "sample": "Cell culture supernatant", "range": "99 - 100 %", "average": "= 100" }, { "sample": "Serum", "range": "105 - 112 %", "average": "= 109" }, { "sample": "EDTA Plasma", "range": "107 - 113 %", "average": "= 110" }, { "sample": "Heparin Plasma", "range": "112 - 119 %", "average": "= 114" }, { "sample": "Citrate plasma", "range": "105 - 109 %", "average": "= 107" } ]

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
+4°C

Supplementary information

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

C-reactive protein (CRP) also known as CRP protein is an acute-phase protein with a molecular mass of approximately 25 kDa. It is primarily synthesized in the liver in response to cytokines. This protein appears in the blood where it binds to phosphocholine expressed on the surface of dead or dying cells. CRP is often used as a biomarker for inflammation in the body and its levels in human and canine (anti CRP used) blood samples are measured using assays like the CRP ELISA test or CRP ELISA kit.
Biological function summary

CRP plays a significant role in the innate immune system by recognizing foreign pathogens and damaged cells. It does not form part of a larger complex but itself can bind to specific ligands initiating the complement cascade. This activation enhances phagocytosis by macrophages contributing to the clearance of necrotic and apoptotic cells. The CRP protein therefore acts as a fast responder in the presence of inflammation making it a useful indicator for monitoring inflammatory diseases.

Pathways

CRP operates predominantly within the acute-phase response pathway. Its production is upregulated by cytokines such as IL-6 which connects it to inflammation-signaling pathways. CRP also interacts with the complement system bridging innate and adaptive immunity. Besides CRP could indirectly influence pathways involving other inflammatory proteins like serum amyloid A and haptoglobin creating a network of responses important for managing inflammation.

Elevated CRP levels are commonly associated with cardiovascular diseases and rheumatoid arthritis. In cardiovascular diseases CRP acts as a marker for atherosclerosis where the protein levels correlate with disease severity. It connects with other proteins involved in inflammatory processes such as fibrinogen to contribute to disease pathology. In rheumatoid arthritis CRP provides insights into disease activity helping in the assessment of treatment responses.

Product protocols

Target data

Displays several functions associated with host defense : it promotes agglutination, bacterial capsular swelling, phagocytosis and complement fixation through its calcium-dependent binding to phosphorylcholine. Can interact with DNA and histones and may scavenge nuclear material released from damaged circulating cells.
See full target information CRP

Publications (17)

Recent publications for all applications. Explore the full list and refine your search

American journal of translational research 15:5120-5128 PubMed37692953

2023

Safety and effectiveness of recombinant human erythropoietin coupled with different doses of Roxadustat for treatment of renal anemia in patients on maintenance hemodialysis.

Applications

Unspecified application

Species

Unspecified reactive species

Shanzhai Wei,Jie Sun,Kangchun Xu,Yibei Li,Yilai Zhang

Science advances 9:eadf4490 PubMed37058568

2023

IL-6-GP130 signaling protects human hepatocytes against lipid droplet accumulation in humanized liver models.

Applications

Unspecified application

Species

Unspecified reactive species

Marisa Carbonaro,Kehui Wang,Hui Huang,Davor Frleta,Aditi Patel,Alexander Pennington,Mathieu Desclaux,Sven Moller-Tank,Justin Grindley,Judith Altarejos,Jun Zhong,Greg Polites,William Poueymirou,Stephen Jaspers,Christos Kyratsous,Brian Zambrowicz,Andrew Murphy,John C Lin,Lynn E Macdonald,Christopher Daly,Mark Sleeman,Gavin Thurston,Zhe Li

Journal of cardiothoracic surgery 18:94 PubMed36966338

2023

Diagnostic value of echocardiography combined with serum C-reactive protein level in chronic heart failure.

Applications

Unspecified application

Species

Unspecified reactive species

Yongxia Zhang

Gut microbes 15:2167170 PubMed36732495

2023

Microbial changes from bariatric surgery alters glucose-dependent insulinotropic polypeptide and prevents fatty liver disease.

Applications

Unspecified application

Species

Unspecified reactive species

Tien S Dong,William Katzka,Julianne C Yang,Candace Chang,Nerea Arias-Jayo,Venu Lagishetty,Anna Balioukova,Yijun Chen,Erik Dutson,Zhaoping Li,Emeran A Mayer,Joseph R Pisegna,Claudia Sanmiguel,Jonathan P Jacobs

Annals of surgical treatment and research 104:90-100 PubMed36816737

2023

Expression levels of and in peripheral blood of severe acute pancreatitis and their clinical significance.

Applications

Unspecified application

Species

Unspecified reactive species

Yongyong Liang,Huaming Ding

Clinical interventions in aging 17:1739-1749 PubMed36474580

2022

Detection Analysis of Perioperative Plasma and CSF Reveals Risk Biomarkers of Postoperative Delirium of Parkinson's Disease Patients Undergoing Deep Brain Stimulation of the Subthalamic Nuclei.

Applications

Unspecified application

Species

Unspecified reactive species

Yongde Zhou,Yu Ma,Cuiping Yu,Yao Chen,Jian Ding,Jianfeng Yu,Rongsong Zhou,Xiaoxiao Wang,Ting Fan,Chengmei Shi

Frontiers in nutrition 9:945538 PubMed36299996

2022

Kynurenic acid as a biochemical factor underlying the association between Western-style diet and depression: A cross-sectional study.

Applications

Unspecified application

Species

Unspecified reactive species

Heather M Francis,Richard J Stevenson,Lorraine S Y Tan,Lauren Ehrenfeld,Sooin Byeon,Tuki Attuquayefio,Dolly Gupta,Chai K Lim

Frontiers in endocrinology 13:657802 PubMed36263320

2022

Downregulationof circ_0001578 promotes gestational diabetes mellitus by inducing placental inflammation the NF-κB and JNKs pathways.

Applications

Unspecified application

Species

Unspecified reactive species

Wei Zhang,Xudong Zhao,Ling Li

BioMed research international 2022:5186210 PubMed36060146

2022

Clinical Effect of the Guizhi Shaoyao Zhimu Decoction in the Treatment of Hyperuricemia.

Applications

Unspecified application

Species

Unspecified reactive species

Qilin Yang,Jikong Zhang,Jiuwei Li

Annals of palliative medicine 11:1687-1699 PubMed35016521

2022

Intravenous iron injection does not impair liver function in a rat model of cirrhosis.

Applications

Unspecified application

Species

Unspecified reactive species

Ji-Hye Kwon,Sukyoung Her,Seungwon Lee,Sangbin Han,Mi Sook Gwak,Gaab Soo Kim,Tae Soo Hahm,Hyun Sung Cho,Justin S Ko
View all publications

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