Search results for "5'-Oligoadenylate Synthetase"

showing 2 items of 12 documents

Superparamagnetic γ-Fe2O3 nanoparticles with tailored functionality for protein separation

2007

Polymer coated superparamagnetic gamma-Fe(2)O(3) nanoparticles were derivatized with a synthetic double-stranded RNA [poly(IC)], a known allosteric activator of the latent (2-5)A synthetase, to separate a single 35 kDa protein from a crude extract which cross reacted with antibodies raised against the sponge enzyme.

Surface PropertiesAllosteric regulationNanoparticleLigandsFerric CompoundsCatalysisMagneticsProtein purification2'5'-Oligoadenylate SynthetaseMaterials ChemistryAnimalsParticle Sizechemistry.chemical_classificationBinding SitesMolecular StructurebiologyImmunomagnetic SeparationMetals and AlloysRNADNA-Directed RNA PolymerasesGeneral ChemistryPolymerbiology.organism_classificationPoriferaSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSpongeEnzymeBiochemistrychemistryCeramics and CompositesNanoparticlesPeptidesSuperparamagnetismChemical Communications
researchProduct

Identification of the reaction products of (2'-5')oligoadenylate synthetase in the marine sponge.

1998

Previously we reported on the presence of a high (2'-5')oligoadenylate synthetase activity in the marine sponge Geodia cydonium [Kuusksalu, A., Pihlak, A., Muller, W. E. G. & Kelve, M. (1995) Eur. J. Biochem. 232, 351-357]. The presence of (2'-5')oligoadenylates [(2'-5')A] in crude sponge extract was shown by radioimmunoassay and by their HPLC comigration with authentic (2'-5')A oligomers. In addition, the sponge (2'-5')oligoadenylates displayed biological activity, as determined by inhibition studies of protein biosynthesis in rabbit reticulocyte lysate. In the present study individual (2'-5')oligoadenylates synthesized by sponge enzyme were separated by HPLC. The exact composition of ever…

chemistry.chemical_classificationMagnetic Resonance Spectroscopy2'-5'-OligoadenylateOligonucleotideBiological activityNuclear magnetic resonance spectroscopyBiologyBiochemistryPoriferaEnzymemedicine.anatomical_structureBiochemistrychemistryReticulocyteSpectrometry Mass Matrix-Assisted Laser Desorption-IonizationPhosphodiester bondProtein biosynthesismedicine2'5'-Oligoadenylate SynthetaseAnimalsChromatography High Pressure LiquidEuropean journal of biochemistry
researchProduct