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Buffer Detection Kit for Magnetic Beads
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Detect FHIT also known as fragile histidine triad with Anti-FHIT (fragile histidine triad) Antibody (Rabbit Polyclonal Antibody), that has been demonstrated to work in WB.
More>>Detect FHIT also known as fragile histidine triad with Anti-FHIT (fragile histidine triad) Antibody (Rabbit Polyclonal Antibody), that has been demonstrated to work in WB. Less<<
Anti-FHIT (fragile histidine triad) Antibody: SDB (Sicherheitsdatenblätter), Analysenzertifikate und Qualitätszertifikate, Dossiers, Broschüren und andere verfügbare Dokumente.
75mM Tris base, 75mM glycine, pH 7.0, 0.05% sodium azide before the addition of glycerol to 30%
Applications
Application
Detect FHIT also known as fragile histidine triad with Anti-FHIT (fragile histidine triad) Antibody (Rabbit Polyclonal Antibody), that has been demonstrated to work in WB.
This gene, a member of the histidine triad gene family, encodes a diadenosine 5',5'''-P1,P3-triphosphate hydrolase involved in purine metabolism. The gene encompasses the common fragile site FRA3B on chromosome 3, where carcinogen-induced damage can lead to translocations and aberrant transcripts of this gene. In fact, aberrant transcripts from this gene have been found in about half of all esophageal, stomach, and colon carcinomas.
FUNCTION: SwissProt: P49789 # Cleaves A-5'-PPP-5'A to yield AMP and ADP. Possible tumor suppressor for specific tissues. COFACTOR: Divalent cations. Magnesium, but manganese and to a lesser extent calcium or cobalt can be substituted; but not zinc, cadmium or nickel. SIZE: 147 amino acids; 16858 Da SUBUNIT: Homodimer. SUBCELLULAR LOCATION: Cytoplasm. TISSUE SPECIFICITY: Low levels expressed in all tissues tested. Phospho-FHIT observed in liver and kidney, but not in brain and lung. Phospho-FHIT undetected in all tested human tumor cell lines. DISEASE: SwissProt: P49789 # A chromosomal aberration involving FHIT is observed in early onset bilateral and multifocal clear cell renal carcinoma [MIM:144700]. Translocation t(3;8) (3p14.2). & Associated with digestive tract cancers. Numerous tumor types are found to have aberrant forms of FHIT protein due to deletions in a coding region of chromosome 3p14.2 including the fragile site locus FRA3B. SIMILARITY: SwissProt: P49789 ## Contains 1 HIT domain.
Molecular Weight
17kDa
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality Assurance
routinely evaluated by immunoblot on RIPA lysates from COS-1 cells transiently transfected with FHIT cDNA (wild type) in pUSEamp (21-186)
Usage Statement
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Fragile histidine triad (FHIT) gene deletions are among the earliest and most frequent events in carcinogenesis, particularly in carcinogen-exposed tissues. Though FHIT has been established as an authentic tumor suppressor, the mechanism underlying tumor suppression remains opaque. Most experiments designed to clarify FHIT function have analyzed the consequence of re-expressing FHIT in FHIT-negative cells. However, carcinogenesis occurs in cells that transition from FHIT-positive to FHIT-negative. To better understand cancer development, we induced FHIT loss in human bronchial epithelial cells with RNA interference. Because FHIT is a demonstrated target of carcinogens in cigarette smoke, we combined FHIT silencing with cigarette smoke extract (CSE) exposure and measured gene expression consequences by RNA microarray. The data indicate that FHIT loss enhances the expression of a set of oxidative stress response genes after exposure to CSE, including the cytoprotective enzyme heme oxygenase 1 (HMOX1) at the RNA and protein levels. Data are consistent with a mechanism in which Fhit protein is required for accumulation of the transcriptional repressor of HMOX1, Bach1 protein. We posit that by allowing superinduction of oxidative stress response genes, loss of FHIT creates a survival advantage that promotes carcinogenesis.
The fragile histidine triad (Fhit) protein is a homodimeric protein with diadenosine 5',5"'-P(1),P(3)-triphosphate (Ap(3)A) asymmetrical hydrolase activity. We have cloned the human cDNA Fhit in the pPROEX-1 vector and expressed with high yield in Escherichia coli with the sequence Met-Gly-His(6)-Asp-Tyr-Asp-Ile-Pro-Thr-Thr followed by a rTEV protease cleavage site, denoted as "H6TV," fused to the N-terminus of Fhit. Expression of H6TV-Fhit in BL21(DE3) cells for 3 h at 37 degrees C produced 30 mg of H6TV-Fhit from 1 L of cell culture ( approximately 4 g of cells). The H6TV-Fhit protein was purified to homogeneity in a single step, with a yield of 80%, using nickel-nitrilotriacetate resin and imidazole buffer as eluting agent. Incubation of H6TV-Fhit with rTEV protease at 4 degrees C for 24 h resulted in complete cleavage of the H6TV peptide. There were no unspecific cleavage products. The purified Fhit protein could be stored for 3 weeks at 4 degrees C without loss of activity. The pure protein was stable at -20 degrees C for at least 18 months when stored in buffer containing 25% glycerol. Purified Fhit was highly active, with a K(m) value for Ap(3)A of 0.9 microM and a k(cat)(monomer) value of 7.2 +/- 1.6 s(-1) (n = 5). The catalytic properties of unconjugated Fhit protein and the H6TV-Fhit fusion protein were essentially identical. This indicates that the 24-amino-acid peptide containing the six histidines fused to the N-terminus of Fhit does not interfere in forming the active homodimers or in the binding of Ap(3)A.