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Human low density lipoprotein receptor,LDLR ELISA Kit

Product#: CS-CSB-E08950h
$730.80
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DCP-PIC100X

Protease Inhibitor Cocktail (100X)

Included with every order
 DCP-SM1AbTBS1X

SigMax 1Ab-TBS

Included with every order
 DCP-UTBS1X

Universal Blocking Buffer

Included with every order
 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 · Cardiovascular

Human low density lipoprotein receptor,LDLR ELISA Kit

Sandwich quantitative immunoassay for low density lipoprotein receptor 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
31.25-2,000 pg/mL
Sensitivity
7.8 pg/mL
Assay Time
1-5 hours
Sample Volume
50-100 μL
Product specifications
Target namelow density lipoprotein receptor
Uniprot No.P01130
SpeciesHomo sapiens (Human)
Sample typesserum, plasma, tissue homogenates
Detection range31.25 pg/mL-2000 pg/mL
Sensitivity7.8 pg/mL
Assay time1-5h
Sample loading volume50-100μL
Detection wavelength450 nm
Assay principleSandwich (Quantitative)
Data analysisStandard curve + Curve Expert software
Research areaCardiovascular
Storage condition2-8°C (see protocol for full details)
Shipping condition4 °C
Shelf life6 months
low density lipoprotein receptor serum plasma tissue homogenates Cardiovascular 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, low density lipoprotein receptor 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 31.25 pg/mL-2000 pg/mL with a minimum detectable dose of 7.8 pg/mL.

For research use only (RUO). Not intended for diagnostic or therapeutic purposes. Validated in human serum, plasma, tissue homogenates matrices only.
Alternative Names
FH ELISA Kit; FHC ELISA Kit; LDL R ELISA Kit; LDL receptor ELISA Kit; LDLCQ2 ELISA Kit; Ldlr ELISA Kit; LDLR_HUMAN ELISA Kit; Low Density Lipoprotein Receptor ELISA Kit; Low density lipoprotein receptor class A domain containing protein 3 ELISA Kit; Low density lipoprotein receptor familial hypercholesterolemia ELISA Kit; Low-density lipoprotein receptor ELISA Kit
Function
Binds LDL, the major cholesterol-carrying lipoprotein of plasma, and transports it into cells by endocytosis. In order to be internalized, the receptor-ligand complexes must first cluster into clathrin-coated pits.; (Microbial infection) Acts as a receptor for hepatitis C virus in hepatocytes, but not through a direct interaction with viral proteins.; (Microbial infection) Acts as a receptor for Vesicular stomatitis virus.; (Microbial infection) In case of HIV-1 infection, may function as a receptor for extracellular Tat in neurons, mediating its internalization in uninfected cells.
Gene References into Functions
  1. Higher Gleason grade was associated with lower LDLR expression, lower SOAT1 and higher SQLE expression. Besides high SQLE expression, cancers that became lethal despite primary treatment were characterized by low LDLR expression (odds ratio for highest versus lowest quintile, 0.37; 95% CI 0.18-0.76) and by low SOAT1 expression (odds ratio, 0.41; 95% CI 0.21-0.83). PMID: 28595267
  2. Report familial hypercholesterolemia patients with multiple mutations at the LDLR gene presenting with more severe phenotype than single mutants. PMID: 28645073
  3. LDLr in the activated PSFs may become a novel target receptor for controlled drug delivery. PMID: 28686975
  4. PCSK9 inhibits lipoprotein(a) clearance through the LDLR. PMID: 28750079
  5. Results indicate the importance of the LDL receptor (LDLR) in the growth of triple-negative and HER2-overexpressing breast cancers in the setting of elevated circulating LDL cholesterol (LDL-C). PMID: 28759039
  6. Twenty mutations including synonymous, missense, and intronic mutations were identified in the LDLR coding region of 32 Brazilian patients with familial hypercholesterolemia. PMID: 28873201
  7. Liposomes modified with both apolipoproteins A-I and E were internalized in HepG2 cells in FBS-depleted culture medium at the same levels as unmodified liposomes in FBS-containing culture medium, which indicates that apolipoproteins A-I and E were the major serum components involved in liposomal binding to SR-B1 or LDLR (or both). PMID: 28888368
  8. Heparan sulfate proteoglycans binding is required for PCSK9-induced LDLR degradation. PMID: 28894089
  9. LDLR associated with Familial Hypercholesterolemia and Polygenic Hypercholesterolemia in patients with Acute Coronary Syndrome , age =65 years, and LDL-C levels /=160 mg/dl. PMID: 28958330
  10. These findings suggest that LDLR rs2738464 may affect the affinity of miR-330 binding to the LDLR 3'-UTR, thus regulating LDLR expression and contributing to clear cell renal cell carcinoma risk PMID: 29029037
  11. Systematic mutation of the AREs (ARE1-3) in the LDLR 3'UTR and expression of each mutant coupled to a luciferase reporter in Huh7 cells demonstrated that ARE1 is required for rapid LDLR mRNA decay and 5-AzaC-induced mRNA stabilization via the IRE1alpha-EGFR-ERK1/2 signaling cascade. PMID: 29208426
  12. membrane LDLR was reduced and lost the ability to take up LDL. Our data also expand the spectrum of known LDLR mutations PMID: 29228028
  13. Authors performed an analysis of public databases and literature for every variant published associated with FH, in the genes LDLR, APOB, and PCSK9. PMID: 29261184
  14. This study adds 9 novel variations and 11 recurrent variations to the spectrum of LDLR gene mutations in Indian population. The in silico analysis for all the variations detected in this study were done to predict the probabilistic effect in pathogenicity of Familial Hypercholesterolemia. PMID: 29269200
  15. Vesicular stomatitis virus G protein complex with two distinct cysteine-rich domains (CR2 and CR3) of LDL-R PMID: 29531262
  16. HepG2 cell lines transfected with siRNA directed to PCSK9 were challenged with Hcy, homocysteine thiolactone (HTL), testosterone, 5alpha-dihydroxytestosterone (5alpha-DHT), or estradiol for 24h, leading to an overt expression of PCSK9 and down-regulated expression of LDLR. PMID: 29660344
  17. The frequency of known mutations in the LDLR gene in this cohort of patients was markedly low compared to frequencies reported in other populations. PMID: 29720182
  18. Data suggest maternal glycemic response during pregnancy is associated with lower DNA methylation of 4 CpG sites within PDE4B gene in placenta (collected after normal-weight term birth); 3 additional CpG sites are differentially methylated relative to maternal glucose response within TNFRSF1B, LDLR, and BLM genes. (PDE4B = phosphodiesterase-4B; TNFRSF1B = TNF receptor superfamily member-1B; BLM = Bloom syndrome protein) PMID: 29752424
  19. In this review we present a broad spectrum of functionally characterized missense LDLr variants identified in patients with Familial hypercholesterolemia (FH), which is mandatory for a definite diagnosis of FH. PMID: 29874871
++ 31 more research findings link this target to additional biology. Showing the 19 most recent — the full set appears on the complete datasheet.
Involvement in disease
Familial hypercholesterolemia (FH)
Subcellular Location
Cell membrane; Single-pass type I membrane protein. Membrane, clathrin-coated pit. Golgi apparatus. Early endosome. Late endosome. Lysosome.
Protein Families
LDLR family
Database Links

HGNC: 6547

OMIM: 143890

KEGG: hsa:3949

STRING: 9606.ENSP00000454071

UniGene: Hs.213289

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.

Intra-Assay Precision

Inter-Assay Precision

Sample

1

2

3

1

2

3

n

20

20

20

20

20

20

Mean(pg/ml)

223.147

228.145

235.557

220.006

229.982

237.908

SD

0.038

0.041

0.048

0.043

0.051

0.058

CV(%)

4.551

4.846

5.568

5.193

6

6.69

Typical Data

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

Human low density lipoprotein receptor,LDLR ELISA Kit

pg/ml

OD1

OD2

Average

Corrected

2000

2.372

2.3

2.336

2.232

1000

1.738

1.683

1.711

1.607

500

1.32

1.302

1.311

1.207

250

0.818

0.834

0.826

0.722

125

0.552

0.543

0.548

0.444

62.5

0.327

0.317

0.322

0.218

31.25

0.22

0.212

0.216

0.112

0

0.103

0.105

0.104

Linearity

To assess the linearity of the assay, samples were spiked with high concentrations of human LDLR 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)

1:20

Average %

96

Range %

88-99

1:40

Average %

101

Range %

94-105

1:80

Average %

92

Range %

84-96

1:160

Average %

104

Range %

94-107

Recovery

The recovery of human LDLR 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)

108

101-112

Heparin plasma (n=4)

94

87-98

Peer-reviewed citations
Metabolic Determinants of PCSK9 Regulation in Women with Polycystic Ovary Syndrome: The Role of Insulin Resistance, Obesity, and Tobacco Smoke Exposure

J Niepsuj, A Piwowar, G Franik, A Bizoń  ·  International Journal of Molecular Sciences  ·  2025

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