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Protein Catalog >> Recombinant Proteins >> Vimentin >> Vimentin Human
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Vimentin Human Recombinant
 
Catalogue Number PRO-309
Synonyms Vimentin, Vim, FLJ36605.
Introduction Vimentin expression in human malignant glioma cells depends on cellular density, algorithms of drug delivery and chemo/radio treatment. Vimentin and detyrosinated microtubules provide structural support for the extensive microtentacles observed in detached tumor cells and a mechanism to promote successful metastatic spread. Primary colorectal carcinomas display aberrant expression of vimentin, and have activated Notch and TGFbeta signaling pathways. Vimentin is a strong arterial substrate for transglutaminases. Transglutaminase-mediated vimentin dimerization results in a novel unifying pathway by which vasodilatory and remodeling responses may be regulated. Ablation of vimentin expression inhibits migration and invasion of colon and breast cancer cell lines. Vimentin is the main intermediate filament protein in mesenchymal cells and is therefore of value in the differential diagnosis of undifferentiated neoplasms.
Description Vimentin Human Recombinant is produced in E.Coli, having a molecular weight of 53,685 Dalton (calculated from sequence), 57,000 Dalton (determined by SDS gelelctrophoresis).
Source Escherichia Coli.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation The protein (1mg/ml) was lyophilized with 30mM Tris/HCl, pH 8, 9.5M urea, 2mM EDTA, 2mM DTT 10mM methylammonium chloride.
Solubility It is recommended to reconstitute the Vimentin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability Lyophilized Vimentin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Vimentin should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
Reconstitution to filaments After vimentin is dissolved in 9.5M urea buffer (see above), protofilaments and filament complexes are obtained by dialyzing the resulting polypeptide solution stepwise to a concentration of 4M urea and then to low salt condition (50mM NaCl, 2mM dithiothreitol, 10mM Tris-HCl, pH 7.4). For immunization purposes, the solution can be further dialyzed against PBS (phosphate buffered saline, e.g. Dulbecco's PBS).
- Hatzfeld M. and Franke W.W. (1985). J. Cell Biol. 101, 1826-1841
- Hatzfeld M. et al. (1987). J. Mol. Biol. 197, 237-255.
Purity Greater than 95.0% as determined by SDS-gelelctrophoresis.
Amino Acid Sequence mstrsvssss yrrmfggpgt asrpsssrsy vttstrtysl gsalrpstsr slyasspggv yatrssavrl rssvpgvrll qdsvdfslad aintefkntr tnekvelqel ndrfanyidk vrfleqqnki llaeleqlkg qgksrlgdly eeemrelrrq vdqltndkar veverdnlae dimrlreklq eemlqreeae ntlqsfrqdv dnaslarldl erkveslqee iaflkklhee eiqelqaqiq eqhvqidvdv skpdltaalr dvrqqyesva aknlqeaeew ykskfadlse aanrnndalr qakqesteyr rqvqsltcev dalkgtnesl erqmremeen faveaanyqd tigrlqdeiq nmkeemarhl reyqdllnvk maldieiaty rkllegeesr islplpnfss lnlretnlds lplvdthskr tlliktvetr dgqvinetsq hhddle.
Usage Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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