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Human lipolysaccharide binding protein,LBP ELISA Kit

Product#: CS-CSB-E09629h-IS
$933.60
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Universal Blocking Buffer

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 DCP-SM2AbTBS1X

SigMax 2Ab-TBS

Included with every order

+ the 5th component, matched to your kit's detection method:

DCP-HRPTBS1X

HRPQuench-TBS

Exclusively for HRP-based kits
OR
DCP-ALPTBS1X

ALPQuench-TBS

Exclusively for ALP-based kits

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Human ELISA Kit · Immunology

Human lipolysaccharide binding protein,LBP ELISA Kit

Sandwich quantitative immunoassay for lipopolysaccharide binding protein in human serum, plasma, tissue homogenates  available in multiple catalog sizes:

Trial 24T 96T

Note: Please send inquiries regarding Trial 24T orders to support@diagnocine.com.

Detection Range
15.6-1,000 ng/mL
Sensitivity
7.8 ng/mL
Assay Time
1-5 hours
Sample Volume
50-100 μL
Product specifications
Target namelipopolysaccharide binding protein
Uniprot No.P18428
SpeciesHomo sapiens (Human)
Sample typesserum, plasma, tissue homogenates
Detection range15.6ng/mL-1000ng/mL
Sensitivity7.8ng/mL
Assay time1-5h
Sample loading volume50-100μL
Detection wavelength450 nm
Assay principleSandwich (Quantitative)
Data analysisStandard curve + Curve Expert software
Research areaImmunology
Storage condition2-8°C (see protocol for full details)
Shipping condition4 °C
Shelf life6 months
lipopolysaccharide binding protein serum plasma tissue homogenates Immunology Human ELISA
Lead Time

10 business days

Processing + 3-5 days shipping

Availability

In Stock : USA

Worldwide shipping available

Assay principle
Sample prep
Antibody capture
450 nm detection
Standard curve
Quantification

In this sandwich ELISA, lipopolysaccharide binding protein in the sample is captured between a pre-coated capture antibody and a detection antibody. Signal intensity is proportional to analyte concentration. Quantification uses a standard curve fitted with Curve Expert software, covering 15.6ng/mL-1000ng/mL with a minimum detectable dose of 7.8ng/mL.

For research use only (RUO). Not intended for diagnostic or therapeutic purposes. Validated in human serum, plasma, tissue homogenates matrices only.
Description

This ELISA kit provides quantitative measurement of Lipopolysaccharide-Binding Protein (LBP) in human serum, plasma, and tissue homogenates, supporting immunology research focused on innate immune responses to gram-negative bacterial infection. Because circulating LBP concentrations rise dramatically during acute-phase responses — from baseline levels of ~5–15 μg/mL to >30–50 μg/mL during sepsis — researchers need an assay that accommodates this wide dynamic shift with appropriate sample dilution planning.

Detection Range: The 15.6–1000 ng/mL range is designed for use with diluted serum or plasma samples, as physiological LBP concentrations are in the microgram-per-milliliter range. Researchers should anticipate 1:100 to 1:1000 dilutions depending on whether samples are from healthy donors or patients with active infection.

Alternative Names
BPI fold containing family D, member 2 ELISA Kit; Bpifd2 ELISA Kit; LBP ELISA Kit; LBP_HUMAN ELISA Kit; LBP1 ELISA Kit; Lipopolysaccharide binding protein ELISA Kit; Lipopolysaccharide-binding protein ELISA Kit; LPS binding protein ELISA Kit; Ly88 ELISA Kit; MGC22233 ELISA Kit; OTTHUMP00000030965 ELISA Kit; RP23-407H16.4 ELISA Kit
Function
Plays a role in the innate immune response. Binds to the lipid A moiety of bacterial lipopolysaccharides (LPS), a glycolipid present in the outer membrane of all Gram-negative bacteria. Acts as an affinity enhancer for CD14, facilitating its association with LPS. Promotes the release of cytokines in response to bacterial lipopolysaccharide.
Gene References into Functions
  1. High LBP is associated with Crohn's disease. PMID: 20865702
  2. LBP measurements performed shortly after preterm premature rupture of membranes, are not of value either in the prediction of newborn's infection, or in the prognosis of latency period duration. PMID: 21353369
  3. This study highlights the LBP rs2232596 and CD14 rs4914 polymorphisms as biomarkers for elevated colorectal carcinoma susceptibility in the Chinese Han population PMID: 21633598
  4. Cytokine concentrations in amniotic fluid during the mid-trimester did not differ with parity or fetal gender. IL-6, IL-8, and LBP levels appeared stable with gestational week (GW), whereas GW significantly influenced TNF-alpha concentrations. PMID: 21702700
  5. Aseptic trauma primes the innate immune system for the posttraumatic release of lipopolysaccharide binding protein and sCD14 PMID: 21722015
  6. The availability of commercial methods for the automated measurement of the soluble CD14 subtype presepsin and lipopolysaccharide binding protein represent a challenge for the evaluation in clinical practice of reliable markers of neonatal sepsis. PMID: 21740312
  7. During the first 14 days of postoperative sepsis, LBP plasma concentrations showed a time course that was very similar to CRP with a high concordance in the pattern of day-to-day changes PMID: 21901123
  8. Association of lipopolysaccharide-binding protein gene polymorphisms with cerebral infarction in a Chinese population PMID: 22476641
  9. our study demonstrated that an elevated LBP level of >15000 ng/ml may serve as a biomarker for the prediction and monitoring of aGVHD. PMID: 22552880
  10. expression in oral keratinocytes is stimulated by Porphyromonas gingivalis LPS PMID: 22736337
  11. LBP is a surrogate marker of microbial translocation in association with physical functioning of older adults. PMID: 22960476
  12. Serum LBP concentrations increased with age. Overweight, obesity, and having metabolic syndrome (particularly, low HDL cholesterol levels) were associated with higher LBP concentrations PMID: 23349936
  13. Human lipopolysaccharide-binding protein (LBP) and CD14 independently deliver triacylated lipoproteins to Toll-like receptor 1 (TLR1) and TLR2 and enhance formation of the ternary signaling complex PMID: 23430250
  14. Suggest that the serum LBP concentration constitutes a reliable biologic marker for the diagnosis of a febrile urinary tract infection in children. PMID: 23463341
  15. Mutations in the lipopolysaccharide binding protein impair innate immunity. PMID: 24120359
  16. In childnre, LBP was independently associated with BMI and with measures of obstructive sleep apnea severity as well as with metabolic dysfunction, particularly insulin resistance as indicated by the homeostasis model assessment of insulin resistance. PMID: 24276451
  17. report pre-ART IL-6 and LBP levels as well as IL-6, LBP and I-FABP levels during IRIS-event as potential biomarkers in TB-IRIS PMID: 24312369
  18. In preterm neonates born to asymptomatic women with PPROM, LBP in cord blood at delivery is an excellent diagnostic biomarker of Fetal inflammatory response syndrome/funisitis with prognostic potential. PMID: 24335151
  19. study suggested that elevated plasma LBP was associated with an increased risk of developing MetS among middle-aged and older Chinese, especially in normal-weight individuals. PMID: 24906952
  20. serum level elevated in late-onset neonatal sepsis in very low birth weight infants PMID: 25014514
  21. Adjusting for body mass index and waist circumference, LBP levels remained significantly increased in metabolic syndrome and increased with increasing numbers of MetS risk factors. PMID: 25063948
  22. The main findings of this study are that, in acute stroke patients, levels of LBP, IL-10, IL-6 and CRP show a different time course in patients with and without post-stroke infection. PMID: 25613713
  23. Data show that after matching for gender, age, and body mass index (BMI), serum lipopolysaccharide-binding protein (LBP) does not improve prediction of the development of type 2 diabetes mellitus (T2DM) independently. PMID: 25753130
  24. Low levels of microbial translocation marker LBP are associated with sustained viral response after anti-HCV treatment in HIV-1/HCV co-infected patients PMID: 25785448
  25. Report increased secretion of Fetuin A, LBP and HMGB-1 from subcutaneous adipose tissue in metabolic syndrome. PMID: 25978344
  26. LBP level was not significantly different in neutropenic systemic inflammatory response syndrome patients and sepsis patients. PMID: 26046926
  27. Serum LBP level is significantly elevated in polycystic ovary syndrome women and is associated with insulin resistance. PMID: 26799617
  28. LBP serves not only as an extracellular LPS shuttle but in addition facilitates intracellular transport of LPS. PMID: 26804480
  29. novel observation that sCD14 compared with lipopolysaccharide binding protein, offers a preferred target to ameliorate TLR especially TLR4-induced inflammation and insulin resistance in human obesity and metabolic syndrome PMID: 26880233
  30. LBP, an endotoxemia associated protein might be used as an inflammatory biomarker of both infectious and non-infectious origins in HCV-infected subjects PMID: 28107471
  31. Serum LBP levels are associated with arterial stiffness, independent of obesity and traditional cardiovascular risk factors, especially in men with type 2 diabetes. PMID: 28486964
  32. This study shows a remarkable reversal of amyloid fibrin formation by LBP addition to the plasma of Parkinson's Disease patients . PMID: 29494603
++ 18 more research findings link this target to additional biology. Showing the 32 most recent — the full set appears on the complete datasheet.
Tissue Specificity
Detected in blood serum (at protein level).
Subcellular Location
Secreted. Cytoplasmic granule membrane.
Protein Families
BPI/LBP/Plunc superfamily, BPI/LBP family
Database Links

HGNC: 6517

OMIM: 151990

KEGG: hsa:3929

STRING: 9606.ENSP00000217407

UniGene: Hs.154078

Precision

Intra-assay Precision (Precision within an assay): CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess.

Inter-assay Precision (Precision between assays): CV%<10%

Three samples of known concentration were tested in twenty assays to assess.

Typical Data

These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

Human lipolysaccharide binding protein,LBP ELISA Kit

ng/ml

OD1

OD2

Average

Corrected

1000

3.411

3.234

3.322

3.195

500

2.448

2.547

2.498

2.370

250

1.588

1.568

1.578

1.451

125

0.984

0.979

0.982

0.854

62.5

0.595

0.611

0.603

0.476

31.2

0.400

0.383

0.391

0.264

15.6

0.278

0.284

0.281

0.154

0

0.130

0.125

0.127

Linearity

To assess the linearity of the assay, samples were spiked with high concentrations of human LBP in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.

Sample

Serum(n=4)

1:40

Average %

92

Range %

88-97

1:80

Average %

90

Range %

86-96

1:160

Average %

97

Range %

91-103

1:320

Average %

106

Range %

100-111

Recovery

The recovery of human LBP spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.

Sample Type

Average % Recovery

Range

Serum (n=5)

95

89-99

EDTA plasma (n=4)

98

90-107

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