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dc.creatorHalami,Prakash M
dc.creatorChandrashekar,Arun
dc.date2007-10-01
dc.date.accessioned2019-05-03T12:44:28Z
dc.date.available2019-05-03T12:44:28Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000400009
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/84978
dc.descriptionThe fusion protein, 6XHis-Xpress-PedA was constructed and expressed in Escherichia coli BL21 (DE3). The presence of a 12.8 kDa recombinant protein, localized in inclusion bodies (IBs) at high concentration, was confirmed by SDS-PAGE analysis and by western blotting using anti-His antibody. The rec-pediocin was purified by Nickel-nitrilotriacetic acid beads and refolded using 5 mM of β-mercaptoethanol along with 1 M glycine. Results indicated that the refolded rec-pediocin had an early elution profile in the RP-HPLC when compared to the unfolded protein and it exhibited biological activity against Listeria monocytogenes V7 which was approximately 25 times less active compared to native counterpart. The final yield of purified rec-pediocin was 3 mg/l of the culture and is estimated to be 8-10 times higher than the purification by conventional methods.
dc.formattext/html
dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso
dc.relation10.4067/S0717-34582007000400009
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceElectronic Journal of Biotechnology v.10 n.4 2007
dc.subjectfusion protein
dc.subjectinclusion bodies
dc.subjectin vitro refolding
dc.subjectpediocin PA-1
dc.subjectPediococcus acidilactici
dc.subjectRP-HPLC
dc.titleHeterologous expression, purification and refolding of an anti-listerial peptide produced by Pediococcus acidilactici K7


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