Human Protein S ELISA Kit

Code CSB-E09903h
Size 96T,5×96T,10×96T
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Product Details

Target Name
Protein S
Alternative Names
Preproprotein S ELISA Kit; Propiece of latent protein S ELISA Kit; PROS 1 ELISA Kit; PROS ELISA Kit; PROS_HUMAN ELISA Kit; proS1 ELISA Kit; Protein S alpha ELISA Kit; Protein Sa ELISA Kit; PS 21 ELISA Kit; PS 22 ELISA Kit; PS 23 ELISA Kit; PS 24 ELISA Kit; PS 25 ELISA Kit; PS 26 ELISA Kit; PS21 ELISA Kit; PS22 ELISA Kit; PS23 ELISA Kit; PS24 ELISA Kit; PS25 ELISA Kit; PS26 ELISA Kit; PSA ELISA Kit; THPH5 ELISA Kit; THPH6 ELISA Kit; Vitamin K dependent protein S ELISA Kit; Vitamin K-dependent plasma protein S ELISA Kit; Vitamin K-dependent protein S ELISA Kit
Abbreviation
PROS1
Uniprot No.
Species
Homo sapiens (Human)
Sample Types
serum, plasma, tissue homogenates
Detection Range
3.12 ng/mL-200 ng/mL
Sensitivity
0.78 ng/mL
Assay Time
1-5h
Sample Volume
50-100ul
Detection Wavelength
450 nm
Research Area
Cardiovascular
Assay Principle
quantitative
Measurement
Sandwich
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.
Linearity
To assess the linearity of the assay, samples were spiked with high concentrations of human Protein S in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
SampleSerum(n=4)
1:100Average %91
Range %87-95
1:200Average %95
Range %90-100
1:400Average %97
Range %94-101
1:800Average %94
Range %91-98
Recovery
The recovery of human Protein S 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 TypeAverage % RecoveryRange
Serum (n=5) 9087-94
EDTA plasma (n=4)9993-105
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
ng/mlOD1OD2AverageCorrected
2002.955 3.003 2.979 2.874
1002.134 2.254 2.194 2.089
501.460 1.568 1.514 1.409
250.788 0.792 0.790 0.685
12.50.436 0.469 0.453 0.348
6.250.265 0.254 0.260 0.155
3.120.177 0.166 0.172 0.067
00.101 0.109 0.105
Troubleshooting
and FAQs
Storage
Store at 2-8°C. Please refer to protocol.
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx
Description

This Human PROS1 ELISA Kit was designed for the quantitative measurement of Human PROS1 protein in serum, plasma, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 3.12 ng/mL-200 ng/mL and the sensitivity is 0.78 ng/mL.

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Target Background

Function
(From Uniprot)
Anticoagulant plasma protein; it is a cofactor to activated protein C in the degradation of coagulation factors Va and VIIIa. It helps to prevent coagulation and stimulating fibrinolysis.
Gene References into Functions
  1. The authors provide strong evidence that the rare Protein S Heerlen (PSH) mutation variant is associated with venous thrombosis in unselected individuals. PMID: 28374852
  2. Functional PROS1 variants are more common in the general Swedish population than anticipated. PMID: 29883906
  3. The present case combined with the review of the literature suggests that p.Arg451* in the PROS1 gene mainly leads to clinically evident thrombosis following trauma, surgery or serious comorbidities especially malignancy. PMID: 29321366
  4. Protein S and Gas6 mediates phagocytosis of HIV-1-infected cells by bridging receptor tyrosine kinase Mer to phosphatidylserine exposed on infected cells. PMID: 29304470
  5. these results suggest a novel pathogenic role of SPE B that initiates protein S degradation followed by the inhibition of apoptotic cell clearance by macrophages PMID: 27181595
  6. Taken together, our gain-of-function, loss-of-function analyses suggest that PROS may facilitate cell proliferation and promote castration resistance in human castration-resistant PCa-like cells via its apoptosis-regulating property. PMID: 27342144
  7. protein S has a clinical relevance and a protective role in pulmonary fibrosis PMID: 27172994
  8. Due to the versatility exemplified, this probe holds great promise for exploring the role of protein S-nitrosylation in the pathophysiological process of a variety of vascular diseases PMID: 28284075
  9. There was no association between PS-Tokushima and recurrent pregnancy loss and a PS deficiency or low PS activity was shown not to serve as a reliable clinical predictor of subsequent miscarriage. PMID: 28214760
  10. we identify PROS1 as a driver of Oral Squamous Cell Carcinoma tumor growth and a modulator of AXL expression PMID: 28118606
  11. The prevalence of PS de fi ciency in the present study was higher than in Western countries and con fi rms the high prevalence of PS de fi ciency in Asian populations PMID: 27748013
  12. Patients with type 2 diabetes had significantly lower circulating free protein S than healthy control subjects PMID: 27207541
  13. In the present study, gene analysis of six unrelated Japanese families diagnosed with congenital protein S deficiency identified five missense mutations in the PROS1 gene - c.757C>T (Ala139Val; A139V), c.1346 G>T (Cys449Phe; C449F), c.1352G>A (Arg451Gln; R451Q), c.1424G>T (Cys475Phe; C475F) and c.1574C>T (Ala525Val; A525V) - and one frameshift mutation, c.2135delA (Asp599ThrfsTer13; D599TfsTer13). PMID: 28088608
  14. The odds ratio of developing idiopathic fatal pulmonary embolism as a variant carrier for PROS1 is 56.4 (95% CI, 5.3-351.1; P = 0.001). PMID: 28174134
  15. described a novel PROS1 frameshift mutation, c.74dupA, in a hereditary protein S deficiency family. Interestingly, both of the proband and his mother carried the mutation and had a protein S deficiency, however, only the proband suffered a pulmonary embolism while his mother had no history of any thrombosis, suggesting that a triggering event might have been involved in the thrombus formation. PMID: 27846449
  16. PROS1 may play an important role in the development of glioblastoma multiforme through cellular proliferation, migration and invasion as well as apoptosis. PMID: 27840905
  17. Low protein S expression is associated with diabetes mellitus. PMID: 27345772
  18. analysis of genotype phenotype correlation in PROS1 in a large cohort of adults with suspicion of inherited quantitative protein S deficiency PMID: 26466767
  19. The immunoabsorption of PON1 from plasma significantly reduced protein S anti-coagulant activity. PMID: 26358807
  20. Elevated levels of circulating microparticles can play a role in carriers of mild and severe inherited thrombophilia resulting from protein S deficiency. PMID: 26354831
  21. The ELISA system using the PS K196E mutation-specific antibody is a useful tool for the rapid identification of PS K196E carriers, who are at a higher risk for venous thromboembolism. PMID: 26186226
  22. A PROS1 c.1486_1490delGATTA mutation on exon 12. appeared to be the primary cause of thrombosis in the family of the present study. PMID: 25997409
  23. analysis of the amino acid residues in the laminin G domains of protein S involved in tissue factor pathway inhibitor interaction PMID: 25716664
  24. Women with low levels of plasma PS activity and free PS during early pregnancy might have increased risks of pregnancy-induced hypertension, or pre-eclampsia. PMID: 25879167
  25. analysis of compound heterozygote protein S deficiency in two Japanese patients [case reports] PMID: 25868595
  26. Protein S exacerbates acute alcoholic hepatitis by inhibiting apoptosis of activated natural killer T cells. PMID: 25399514
  27. The present study highlights that the GAS6/ProS-TAM system correlates in several ways with disease activity in systemic lupus erythematosus PMID: 23497733
  28. genetic polymorphism affects endogenous thrombin potential among FV Leiden carriers PMID: 24226152
  29. Identical large duplication mutation of PROS1 was detected in 3 unrelated patients with thrombophilia from hereditary protein S deficiency. PMID: 24992033
  30. Anti-human protein S antibody induces tissue factor expression through a direct interaction with PFKP and ERK1/2 activation in coronary artery endothelial cells. PMID: 24331211
  31. Data indicate that the protein S sex hormone-binding globulin (SHBG)-like domain was important for binding and enhancement of tissue factor pathway inhibitor (TFPI). PMID: 24740810
  32. study found the S K196E mutation, a genetic risk factor for venous thromboembolism, was not found in Chinese or Koreans; results suggest the protein S K196E mutation is a recent occurrence and fixed within the Japanese population PMID: 23721692
  33. implicate protein S residues 37-50 as a binding site for FVa that mediates, at least in part, the direct inhibition of FVa-dependent procoagulant activity by protein S PMID: 23892573
  34. miR-494 is involved in the mechanism of estrogen-mediated downregulation of PS expression PMID: 23789915
  35. This is the first report of a large deletion of PROS1 from exon 1 through 12 in Polish patients with deep-vein thrombosis. PMID: 23473639
  36. PS exerts anticoagulant cofactor activity with TFPIalpha from any physiological pool, likely by localizing TFPIalpha to membrane surfaces, stabilizing its interaction with membrane-bound FXa, and slowing thrombin generation. PMID: 24233490
  37. Data suggest that protein S testing and PROS1 testing should not be considered in unselected patients with venous thrombosis. PMID: 24014240
  38. This study is the largest investigation of ProS deficiency in China and the first investigation of the influence of Type I ProS missense mutations on the global level of coagulation function. PMID: 23813890
  39. The effect of oral contraceptives on TFPI and PS is a possible explanation for the increased risk of venous thrombosis associated with oral contraceptives. PMID: 23407778
  40. Data indicate that activated T cells express Pros1. PMID: 23850380
  41. Platelet protein S may be an essential pool of protein S that counterbalances procoagulant activities on platelets. PMID: 23238804
  42. sputum glutaredoxin-1 may have a role in asthma, while protein S may have a role in better lung function PMID: 23370801
  43. The tyrosine kinase receptor MER is activated by PROS and mediates its inhibitory effect on VEGF-A-induced EC proliferation. PMID: 23065156
  44. TFPI Kunitz domain 3 residue Glu226 is essential for TFPI enhancement by protein S. PMID: 23074276
  45. PROS1 is elevated in high grade and castration-resistant prostate cancer and could serve as a potential biomarker of aggressive disease. PMID: 22908226
  46. mutation deletions but no other types of rearrangements detected in patients with protein S deficiency PMID: 22627709
  47. genetic polymorphism is associated with increased free plasma tissue factor pathway inhibitor levels PMID: 22273984
  48. proteolytic cleavage is increased in patients with essential thrombocythaemia and reduced in patients with chemotherapy-induced thrombocytopenia PMID: 22318644
  49. Serum of women during third trimester of pregnancy complicated by intrauterine growth restriction (IUGR) had significantly lower functional and free protein S compared with control; however, no correlation was found between total protein S and IUGR. PMID: 22104477
  50. Persistently low protein S activity levels are highly indicative of a genetic alteration in PROS1. PMID: 22261441

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Involvement in disease
Thrombophilia due to protein S deficiency, autosomal dominant (THPH5); Thrombophilia due to protein S deficiency, autosomal recessive (THPH6)
Subcellular Location
Secreted.
Tissue Specificity
Plasma.
Database Links

HGNC: 9456

OMIM: 176880

KEGG: hsa:5627

STRING: 9606.ENSP00000377783

UniGene: Hs.64016

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