Recombinant Human Vitamin K-dependent protein S (PROS1)

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Code CSB-EP018754HU
Size $224
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Alternative Names
Preproprotein S; Propiece of latent protein S; PROS 1; PROS; PROS_HUMAN; proS1; Protein S alpha; Protein Sa; PS 21; PS 22; PS 23; PS 24; PS 25; PS 26; PS21; PS22; PS23; PS24; PS25; PS26; PSA; THPH5; THPH6; Vitamin K dependent protein S; Vitamin K-dependent plasma protein S; Vitamin K-dependent protein S
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
Protein Length
Full Length of Mature Protein
Tag Info
N-terminal 6xHis-SUMO-tagged
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
3-7 business days
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

Discover our Recombinant Human PROS1 protein, meticulously designed to support your cardiovascular research needs. This full-length, mature Vitamin K-dependent protein S is expressed in an E. coli system, covering the 42-676aa region for optimal performance in your experiments.

Featuring an N-terminal 6xHis-SUMO tag, this protein allows for efficient purification and detection processes. Our Recombinant Human PROS1 protein boasts a purity greater than 90% as determined by SDS-PAGE, and is available in both liquid and lyophilized powder forms to meet your specific research requirements. Trust our precision-engineered PROS1 protein to deliver consistent, dependable results for your cardiovascular studies.

Customer Reviews and Q&A

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Target Background

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
Tissue Specificity
Database Links

HGNC: 9456

OMIM: 176880

KEGG: hsa:5627

STRING: 9606.ENSP00000377783

UniGene: Hs.64016

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