SULF1 Antibody, FITC conjugated

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Description

Definition and Core Characteristics

The SULF1 Antibody, FITC conjugated, is a rabbit-derived polyclonal antibody chemically linked to fluorescein isothiocyanate (FITC), enabling fluorescence-based detection methods. Key attributes include:

PropertyDetail
TargetHuman SULF1 (UniProt ID: Q8IWU6)
ImmunogenRecombinant human SULF1 protein fragment (e.g., amino acids 105–372)
Host SpeciesRabbit
ConjugateFITC (Ex/Em: 495/519 nm)
ReactivityHuman-specific
PurificationProtein G affinity purification (>95% purity)

Applications in Research

This antibody is validated for multiple immunoassays:

Key Applications

  • Enzyme-Linked Immunosorbent Assay (ELISA): Detects soluble SULF1 in plasma or cell culture media .

  • Immunohistochemistry (IHC): Localizes SULF1 in formalin-fixed paraffin-embedded tissues (e.g., melanoma biopsies) .

  • Western Blot (WB): Identifies SULF1 at ~101 kDa in lysates from HT-1080 cells or mouse tissues .

Recommended Dilutions

ApplicationDilution Range
WB1:500–1:5,000
IHC1:50–1:500
ELISAManufacturer-specific optimization required

Role in Cancer Biology

  • Anti-Tumor Activity: SULF1 overexpression in melanoma cells inhibits AKT phosphorylation, reduces nuclear import of CDK4, and induces apoptosis, retarding tumor growth in xenograft models .

  • Biomarker Potential: Plasma SULF1 levels are being investigated as a diagnostic marker for early cancer detection .

Mechanistic Insights

  • SULF1 desulfates HSPGs, disrupting growth factor signaling (e.g., HB-EGF/EGFR and HGF/c-MET pathways) .

  • In melanoma, SULF1 loss correlates with increased proliferation and chemoresistance, while its restoration suppresses AKT-mediated survival pathways .

Precautions

  • ProClin 300 and sodium azide in the buffer are hazardous; handle with protective equipment .

Comparative Advantages

  • Polyclonal vs. Monoclonal: While monoclonal antibodies (e.g., clone 4-C25) offer high specificity, polyclonal FITC-conjugated SULF1 antibodies provide broader epitope recognition, enhancing detection in heterogeneous samples .

  • Versatility: Suitable for multiplex assays due to FITC’s compatibility with standard fluorescence detection systems .

Product Specs

Buffer
**Preservative:** 0.03% Proclin 300
**Constituents:** 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Typically, we can ship your orders within 1-3 business days of receipt. Delivery timelines may vary depending on the order method and destination. Please consult your local distributor for specific delivery times.
Synonyms
DSulf antibody; Extracellular sulfatase Sulf 1 antibody; Extracellular sulfatase Sulf-1 antibody; Extracellular sulfatase Sulf1 antibody; HSULF 1 antibody; HSulf-1 antibody; Neu5 antibody; Sulf1 antibody; SULF1_HUMAN antibody; Sulfatase FP antibody; Sulfated antibody
Target Names
SULF1
Uniprot No.

Target Background

Function
SULF1 exhibits arylsulfatase activity and highly specific endoglucosamine-6-sulfatase activity. It is capable of removing sulfate from the C-6 position of glucosamine within specific subregions of intact heparin. This activity leads to a decrease in HSPG (heparan sulfate proteoglycans) sulfation, inhibition of signaling by heparin-dependent growth factors, reduced proliferation, and promotion of apoptosis in response to exogenous stimulation.
Gene References Into Functions
  1. High SULF1 expression is associated with glioma. PMID: 29360432
  2. Research suggests SULF1 could serve as a potential indicator of the clinicopathological features and prognosis of pancreatic cancer. PMID: 29843217
  3. Defective autophagy is associated with a loss of HSulf-1 in ovarian cancer. PMID: 28169314
  4. Studies have demonstrated that elevated SULF1 expression is significantly predictive of more advanced tumor stage and poorer metastasis-free survival and disease-specific survival in patients with both UTUC and UBUC. PMID: 28525382
  5. Data show that sulfatase 1 (hSulf-1) overexpression in melanoma cells can inhibit cell proliferation and induce cell cycle arrest and apoptosis by decreasing the protein kinase B (AKT) phosphorylation and limiting cyclin dependent kinase 4 (CDK4) nuclear import. PMID: 27806323
  6. Sulf-1 is responsive to TNF-alpha stimulation and may function as an autocrine regulator of fibroblast expansion during an inflammatory response. PMID: 27693418
  7. The short variants of Sulf1 promoted FGF2-induced MDA-MB231 and MCF7 in vitro growth, while full-length Sulf1 inhibited growth, supporting in vivo mammary tumor cell signaling patterns of growth. PMID: 27294358
  8. The SULF1/SULF2 activation not only promotes regulated fetal growth and injury-induced liver regeneration but also dysregulated tumor growth. PMID: 27013228
  9. Research indicates that SULF1 or SULF2 overexpression contributes to colorectal cancer cell proliferation, migration, and invasion. PMID: 25477293
  10. Data suggest that Sulfatase 1 (hSulf-1) could be a suitable target for cancer therapy. PMID: 24970807
  11. Findings show an upregulation of SULF1 in degenerative discs, suggesting a potential link between SULF1 and disc degeneration. PMID: 25469740
  12. The rs6990375 polymorphism of the SULF1 gene may be a contributing factor to recurrent miscarriage in Iranian women. PMID: 24322345
  13. Identification of markers including SULF1 could potentially improve the early detection of this disease, leading to better patient treatment and prognosis. PMID: 24911625
  14. SULF1/SULF2 splice variants play a role in regulating pancreatic tumor progression. PMID: 24726914
  15. Knockdown of SULF2 in a human corneal epithelial cell line slowed migration, which was restored by overexpression of either mouse SULF2 or human SULF1. PMID: 23950901
  16. Strong interaction depends on the presence of Sulf1-substrate groups. PMID: 23891937
  17. Ectopic expression of SULF1 or SULF2 in HeLa cells, which decreases cell surface heparan sulfate proteoglycan sulfation, diminished Chlamydia muridarum binding and decreased vacuole formation. PMID: 23480519
  18. These observations suggest that HPEI nanogels delivering HSulf-1 combined with DDP may have promising applications in the therapy of human ovarian cancer. PMID: 22825572
  19. miR-21-mediated suppression of both hSulf-1 and PTEN led to activation of AKT/ERK pathways and epithelial-mesenchymal transition in hepatocellular carcinoma, promoting tumor growth. PMID: 23684551
  20. HSulf-1 and HSulf-2 share the same desulfation process, but with different rates. PMID: 23457216
  21. SULF1 inhibits proliferation and invasion of esophageal squamous cell carcinoma by decreasing heparin-binding growth factor signaling. PMID: 23053899
  22. HSULF-1 is expressed at lower levels in H292 lung cancer cells than in normal human alveolar cells. Overexpression of HSULF-1 in H292 cells reduced cell viability by inducing apoptotic pathways, at least partially by inhibiting ERK/Akt signaling. PMID: 22873647
  23. SULF1 could potentially serve as a promising biomarker for patients with gastric carcinoma. PMID: 22653794
  24. Sulf-1 protein expression is down-regulated in gastric cancer. PMID: 22524839
  25. Extracellular HSulf-1 may function as a negative regulator of proliferation and invasion in gastric cancer by suppressing Wnt/beta-catenin signaling at the cell surface. PMID: 21722266
  26. SULF1 and SULF2 are overexpressed in various human cancer types and can be associated with progression and prognosis. PMID: 21599997
  27. Data show that HSulf-1 depletion in breast cancer cells resulted in increased and sustained bFGF2 (basic fibroblast growth factor) signaling and promoted cell migration and invasion under hypoxic conditions. PMID: 21266348
  28. Phage microarrays containing colorectal cancer cDNA libraries were prepared to identify phage-expressed peptides recognized by tumor-specific autoantibodies from patient sera. PMID: 21228115
  29. Genetic variations in SULF1 may play a role in ovarian cancer onset and prognosis. PMID: 21214932
  30. Haploinsufficiency of SULF1 combined with haploinsufficiency of SLCO5A1 (or the altered expression of a neighboring gene through position effect) could be necessary in the pathogenesis of MSS. PMID: 20602915
  31. The expression levels of four of the up-regulated genes, CXCL1, SPARC, SPP1, and SULF, were significantly higher in the cancerous tissue compared with the normal tissue (fold change 3.4-8.9). PMID: 19780053
  32. Sulfs are extracellular endosulfatases with strong potential for modulating the interactions of heparan sulfate proteoglycans in the extracellular microenvironment. PMID: 12368295
  33. SULF1 modulates signaling by heparin-binding growth factors, and HSulf-1 down-regulation represents a novel mechanism by which cancer cells can enhance growth factor signaling. PMID: 12686563
  34. Down-regulation of hSulf1 contributes to hepatocarcinogenesis by enhancing heparin-binding growth factor signaling and resistance to apoptosis. PMID: 14699503
  35. High expression of Hsulf-1 occurs in the stromal elements as well as in the tumor cells in pancreatic cancer and interferes with heparin-binding growth factor signaling. PMID: 15817123
  36. HSulf-1 and HSulf-2 have roles in inhibiting myeloma tumor growth. PMID: 16192265
  37. Loss of HSulf-1 expression is associated with breast cancer. PMID: 17363371
  38. Sulf1 is a TGF-beta1-responsive gene both in vitro and in vivo and may function as a negative regulator of TGF-beta1-induced fibrogenesis. PMID: 18503048
  39. Increased sulf-1 expression may alter the sulfation patterns of heparan sulfate proteoglycans and growth factor activities, potentially contributing to abnormal chondrocyte activation and cartilage degradation in osteoarthritis. PMID: 18507859
  40. Sulf1 and Sulf2 are two heparan sulfate 6-O-endosulfatases that regulate the activity of multiple growth factors, such as fibroblast growth factor and Wnt, and are essential for mammalian development and survival. PMID: 18687675
  41. Detection of the HSulf-1 promoter methylation in serum samples may have clinical implications for the early detection and diagnosis of human breast and gastric cancers. PMID: 19006069
  42. Targeting sulfatase 1(SULF1) or its interaction with the related sulfatase 2 could potentially be important in developing novel cancer therapies. PMID: 19373441
  43. vHNF1 acts as a repressor of HSulf-1 expression and might be a molecular target for ovarian cancer therapy. PMID: 19487294
  44. Analysis of the subdomain organization of sulf-1 and sulf-2. PMID: 19520866
  45. Data show that specific regions of the Sulf1 hydrophilic domain (HD) influence different aspects of heparan sulfate binding, cellular localization, and enzyme function. PMID: 19666466
  46. HSulf-1 (SULF1) and HSulf-2 (SULF2) are potent inhibitors of myeloma tumor growth in vivo. PMID: 16192265

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Database Links

HGNC: 20391

OMIM: 610012

KEGG: hsa:23213

STRING: 9606.ENSP00000260128

UniGene: Hs.409602

Protein Families
Sulfatase family
Subcellular Location
Endoplasmic reticulum. Golgi apparatus, Golgi stack. Cell surface.
Tissue Specificity
Expressed at highest levels in testis, stomach, skeletal muscle, lung, kidney, pancreas, small intestine and colon. It is also detected in normal ovarian surface epithelial cells. Down-regulation seen in ovarian carcinoma cell lines, ovarian cancers, brea

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