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RESEARCH PRODUCT

Echinostoma caproni: identification of enolase in excretory/secretory products, molecular cloning, and functional expression.

Carla Muñoz-antoliAntonio MarcillaAna EspertRafael ToledoDolores BernalAna Pérez-garcíaJosé Guillermo Esteban

subject

MaleImmunologyEnolaseBlotting WesternMolecular Sequence DataMolecular cloningBiologymedicine.disease_causeGene Expression Regulation Enzymologiclaw.inventionlawCricetinaeEchinostomamedicineAnimalsHumansElectrophoresis Gel Two-DimensionalAmino Acid SequenceCloning MolecularRats WistarEscherichia coliActinchemistry.chemical_classificationMesocricetusSequence Homology Amino AcidReverse Transcriptase Polymerase Chain ReactionPlasminogenGeneral MedicineMolecular biologyIn vitroRecombinant ProteinsAmino acidRatsInfectious DiseaseschemistryBiochemistryExcretory systemPhosphopyruvate HydrataseSpectrometry Mass Matrix-Assisted Laser Desorption-IonizationRecombinant DNAParasitologyElectrophoresis Polyacrylamide GelSequence Alignment

description

In order to investigate molecules that could be involved in host-trematode relationships, we have analysed the excretory/secretory products (ESP) of Echinostoma caproni following a proteomic approach. Actin, Gluthathione S-transferase (GST) and enolase have been identified in the ESP. Enolase, observed to be one of the most abundant proteins, was further characterized. The molecular cloning and in vitro expression in Escherichia coli of E. caproni enolase allowed us to determine that the protein contains 431 amino acids and a theoretical MW of 46272 Da. E. caproni enolase shows high homology to other trematode enolases. The recombinant protein binds specifically to human plasminogen in vitro, as observed for the native protein, confirming its properties as a host-interacting molecule.

10.1016/j.exppara.2007.03.011https://pubmed.ncbi.nlm.nih.gov/17462631