Human Sterol regulatory element-binding protein 1(SREBF1) ELISA kit

Instructions
Code CSB-EL022657HU
Size 96T,5×96T,10×96T
See More Details 24T ELISA kits trial application
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Product Details

Target Name sterol regulatory element binding transcription factor 1
Alternative Names ADD 1 ELISA Kit; bHLHd1 ELISA Kit; Class D basic helix-loop-helix protein 1 ELISA Kit; D630008H06 ELISA Kit; Processed sterol regulatory element-binding protein 1 ELISA Kit; SRBP1_HUMAN ELISA Kit; SREBF 1 ELISA Kit; SREBF1 ELISA Kit; SREBP 1 ELISA Kit; SREBP 1c ELISA Kit; SREBP-1 ELISA Kit; SREBP1 ELISA Kit; Sterol regulatory element binding protein 1 ELISA Kit; Sterol Regulatory Element Binding Transcription Factor 1 / Protein 1 ELISA Kit; Sterol regulatory element binding transcription factor 1 ELISA Kit; Sterol regulatory element-binding transcription factor 1 ELISA Kit
Abbreviation SREBF1
Uniprot No. P36956
Species Homo sapiens (Human)
Sample Types serum, plasma, tissue homogenates, cell lysates
Detection Range 7.8 pg/mL-500 pg/mL
Sensitivity 1.95 pg/mL
Assay Time 1-5h
Sample Volume 50-100ul
Detection Wavelength 450 nm
Research Area Metabolism
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 SREBF1 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)
1:1 Average % 92
Range % 88-99
1:2 Average % 90
Range % 85-97
1:4 Average % 94
Range % 90-100
1:8 Average % 94
Range % 86-102
Recovery
The recovery of human SREBF1 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) 96 91-98
EDTA plasma (n=4) 97 92-100
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
pg/ml OD1 OD2 Average Corrected
500 2.617 2.658 2.638 2.532
250 2.246 2.273 2.260 2.154
125 1.786 1.790 1.788 1.682
62.5 1.175 1.199 1.187 1.081
31.2 0.638 0.639 0.639 0.533
15.6 0.369 0.355 0.362 0.256
7.8 0.196 0.207 0.202 0.096
0 0.105 0.106 0.106  
Troubleshooting
and FAQs
ELISA kit FAQs
Storage Store at 2-8°C. Please refer to protocol.
Lead Time 5-7 working days

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Target Data

Function Transcriptional activator required for lipid homeostasis. Regulates transcription of the LDL receptor gene as well as the fatty acid and to a lesser degree the cholesterol synthesis pathway (By similarity). Binds to the sterol regulatory element 1 (SRE-1) (5'-ATCACCCCAC-3'). Has dual sequence specificity binding to both an E-box motif (5'-ATCACGTGA-3') and to SRE-1 (5'-ATCACCCCAC-3').
Gene References into Functions
  1. results reveal that nBP1a/PKM2 interaction activates lipid metabolism genes in cancer cells and that Thr-59 phosphorylation of SREBP-1a plays an important role in cancer cell proliferation. PMID: 29514980
  2. GTEE also downregulated the expression of AR and prostate-specific antigen (PSA) in both androgen-responsive and castration-resistant PCa cells. By blocking the SREBP-1/AR axis, GTEE suppressed cell growth and progressive behaviors, as well as activating the caspase-dependent apoptotic pathway in PCa cells PMID: 30301150
  3. SREBP1 trans-activates CYP24A1 expression through SREBP binding elements present in the promoter. PMID: 29653103
  4. Berberine (BBR), an effective suppressor of SREBP1 and lipogenesis regulated through reactive oxygen species (ROS)/AMPK pathway, selectively inhibited the growth of G-R nonsmall cell lung cancer cells and rheumatoid arthritis patiens but not that of normal cells PMID: 28665143
  5. These findings suggest that SREBP-1c serves as a molecular bridge between lipid metabolism and cell cycle control inclear cell renal cell carcinoma tumorigenesis. PMID: 29138263
  6. findings showed that PTEN inhibits HBV replication as well as HBV HCV co-replication. SREBP-1 is involved in HBV HCV replication inhibition by PTEN PMID: 29803738
  7. FTO increased the lipid accumulation in hepatocytes by increasing nuclear translocation of SREBP1c and SREBP1c maturation, thus improving the transcriptional activity of lipid droplet-associated protein CIDEC. PMID: 29486327
  8. common SNPs (rs62064119, rs2297508, rs11868035 and rs13306741) in the SREBP-1c gene were selected and genotyped in 593 Han patients with NAFLD and 593 healthy controls. No significant differences in genotype and allele frequencies of these four SNPs were found between cases and controls, suggesting that the SNPs are not associated with risk of NAFLD in the Chinese Han population. PMID: 27572914
  9. Data suggests that expression of CYP4F2 is down-regulated in liver of mice with non-alcoholic fatty liver disease after high-fat/Western diet and in human hepatocyte cell line exposed to excess palmitic acid, oleic acid, or fructose. Two other genes are down-regulated, PPAR gamma and SREBP-1. (CYP4F2 = cytochrome P450 family 4 subfamily F member 2; PPAR = peroxisome proliferator-activated receptor ) PMID: 28628909
  10. LncARSR promotes hepatic lipogenesis via Akt/SREBP-1c pathway and contributes to the pathogenesis of nonalcoholic steatohepatitis. PMID: 29555473
  11. CpG sites located in SREBF2 gene showed differential methylation in association with lipid traits. The expression of SREBF1 gene was inversely associated with methylation of its corresponding CpGs. Genetic variants in SREBF1 were also associated with lipid profile. SREBF1 expression was directly associated with HDL cholesterol. PMID: 28173150
  12. Epidermal growth factor receptor (EGFR) signaling enhances miR-29 expression in glioblastoma cells via upregulation of Sterol regulatory element binding protein PMID: 27477273
  13. Our finding reveals a crucial roles for SREBP1 in lipid desaturation of ccRCC through regulation of NF-kappaB signaling, which provides not only new insights in regulatory mode of NF-kappaB signaling but also a novel target for potential metabolic therapies. PMID: 29183723
  14. Our results suggest that relatively common genetic variants in stearoyl CoA desaturase and SREBF1 attenuated the positive associations between intake of a traditional diet rich in n-3 polyunsaturated fatty acids and increases in fasting cholesterol and HbA1c levels, as well as the waist-to-hip ratio among Yup'ik participants. PMID: 27467133
  15. changes in distinct lipid ratios may converge on ARF1 to increase SBP-1/SREBP-1 activity. PMID: 27320911
  16. Variants in the TOM1L2/SREBF1 locus exert opposing effects of total-body lean mass (TB-LM) and total-body less head bone mineral density (TBLH-BMD) . PMID: 28743860
  17. Date indicate that sterol regulatory element-binding proteins Srebp1 and Srebp2 are essential for the metabolic reprogramming of NK cells and for the attainment of elevated glycolysis and oxidative phosphorylation. PMID: 28920951
  18. Study identified a novel human specific lncRNA, lncHR1, as a negative regulator of SREBP-1c expression. Overexpression of lncHR1 inhibited expression of SREBP-1c and fatty acid synthase (FAS) and then repressed oleic acid-induced hepatic cell triglyceride (TG) and lipid droplet (LD) accumulation. PMID: 28367099
  19. Glucose adsorption to chitosan membranes increases proliferation of human chondrocytes via mammalian target of rapamycin complex 1 and sterol regulatory element-binding protein-1 signaling. PMID: 28218386
  20. miR-185 negatively regulates the differentiation of 3T3-L1 cells by targeting SREBP-1 PMID: 28701079
  21. The authors further demonstrated that the upregulation of sterol regulatory element-binding protein (SREBP)-1c by activation of the Akt and p70S6K pathways is critical for high-glucose-treated Porphyromonas gingivalis-induced NLRP3 expression. PMID: 28083517
  22. Results show that PPARalpha is downregulated and SREBP-1c is upregulated in steatosis L-02 cells. These changes increase lipid synthesis and reduce lipid disposal, which ultimately lead to hepatic steatosis. PMID: 27270405
  23. SREBP-1 and SREBP-2 mRNA expression levels were measured in EAT from 49 patients with CAD (26 with diabetes) and 23 controls without CAD or diabetes.SREBP expression was associated as cardiovascular risk factor for the severity of CAD and the poor lipid control. PMID: 28367087
  24. The involvement of SREBP-1c in FASN promoter histone modification. PMID: 28027934
  25. the mitotic phosphorylation and stabilization of nuclear SREBP1 during cell division provides a link between lipid metabolism and cell proliferation. PMID: 27579997
  26. B7-H3 hijacks SREBP-1/FASN signaling mediating abnormal lipid metabolism in lung cancer PMID: 27939887
  27. The genetic polymorphisms of SREBF1 could play a role in the mechanism for interindividual variation of atypical antipsychotics-induced metabolic syndrome (MetS). SCAP polymorphisms with drug-induced MetS were negative in this study. PMID: 26982812
  28. NS5ATP6 regulates the intracellular triglyceride level via FGF21, and independently of SIRT1 and SREBP1. PMID: 27179781
  29. observations suggest that MALAT1 promotes hepatic steatosis and insulin resistance by increasing nuclear SREBP-1c protein stability. PMID: 26935028
  30. MiR-132 inhibited SIRT1 and SREBP-1c expression and downregulated their targeted genes, including HMGCR and FASN. PMID: 26898440
  31. Report demonstrated that overexpression of SULT2B1b-mediated angiogenic signaling was associated with tumor angiogenesis and poor clinical features of human gastric cancer. PMID: 26937945
  32. Data show that mutant p53 protein activates the sterol regulatory element-binding proteins SREBP-1 and SREBP-2-mediated signaling pathways in prostate cancer (PCa) cells. PMID: 26512780
  33. miR-33b is highly induced upon differentiation of human preadipocytes, along with SREBP-1 and miR-33b is an important regulator of adipogenesis PMID: 26830228
  34. Akt1 and Akt2 activated both SREBP-1 and SREBP-2, whereas Akt3 upregulated SREBP-1 to enhance hepatitis C virus translation. PMID: 26855332
  35. PRMT5-induced methylation prevented phosphorylation of SREBP1a on S430 by GSK3beta PMID: 26759235
  36. mTORC2 positively regulates mSREBP1 stability and lipogenesis. Findings reveal a novel biological function of mTORC2 in the regulation of lipogenesis PMID: 25893295
  37. mTORC1/SREBP pathway is a major mechanism through which common oncogenic signaling events induce de novo lipid synthesis to promote aberrant growth and proliferation of cancer cells PMID: 26028026
  38. hnRNP A1 is implicated in the free fatty acid-induced expression of SREBP-1a and of its target genes as well as in the lipid accumulation in hepatocytes. PMID: 26869449
  39. TG levels are regulated by HCBP6-sterol regulatory element binding protein 1c (SREBP1c)-mediated fatty acid synthase (FASN) expression. PMID: 25855506
  40. Aberrant activation of SREBP1c suppresses primary ciliogenesis by PLA2G3-mediated distortion of vesicular trafficking and suggest that PLA2G3 is a novel potential target to normalize ciliogenesis in SREBP1c-overexpressing cells, including cancer cells. PMID: 25904332
  41. PD-L1 induces epithelial-to-mesenchymal transition via activating SREBP-1c in renal cell carcinoma. PMID: 26141060
  42. performed a detailed promoter/enhancer analysis of ELOVL5 gene, and identified two new SREBP binding sites, one in the 10 kb upstream region and one in the exon 1 PMID: 26321664
  43. Data indicate that glucose-mediated glycosylation promotes SREBP cleavage-activating protein (SCAP) trafficking to the Golgi Leading to sterol regulatory element binding protein 1 (SREBP-1) activation. PMID: 26555173
  44. Single nucleotide polymorphism (rs2297508) of SREBF-1 may serve as a genetic predisposition factor for the development of endometrial cancer. PMID: 24614076
  45. Report PCR techniques for genotyping SREBF1 rs8066560 variant in Iranian children/adolescents with metabolic syndrome. PMID: 26771965
  46. Data show that the cleavage site of the lipid-signaling protein sterol regulatory element binding transcription factor 1 (SREBP-1) intermediate bears rigid alpha-helical topology. PMID: 26392539
  47. We concluded that 54(G/C) polymorphism of SREBF-1 gene is associated with polycystic ovary syndrome (PCOS) and suggest that SREBF-1 gene may play a role in genetic predisposition to PCOS. PMID: 25801724
  48. The results from this study demonstrate that metformin ameliorates PA-induced insulin resistance through the activation of AMPK and the suppression of SREBP-1c in skeletal muscle cells. PMID: 25891779
  49. Associations between triglyceride levels and SREBF1 and ABCG1 were also found in adipose tissue of the Multiple Tissue Human Expression Resource cohort PMID: 25583993
  50. gene expression analysis revealed that SREBP defines a gene signature that is associated with poor survival in glioblastoma PMID: 25619842

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Subcellular Location Endoplasmic reticulum membrane, Multi-pass membrane protein, Golgi apparatus membrane, Multi-pass membrane protein, Cytoplasmic vesicle, COPII-coated vesicle membrane, Multi-pass membrane protein
Protein Families SREBP family
Tissue Specificity Expressed in a wide variety of tissues, most abundant in liver and adrenal gland. In fetal tissues lung and liver shows highest expression. Isoform SREBP-1C predominates in liver, adrenal gland and ovary, whereas isoform SREBP-1A predominates in hepatoma
Database Links

HGNC: 11289

OMIM: 184756

KEGG: hsa:6720

STRING: 9606.ENSP00000348069

UniGene: Hs.592123

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