Afficher la notice abrégée

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorBERTHELOT, Karine
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorLECOMTE, Sophie
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorESTEVEZ, Yannick
hal.structure.identifierInstitut de biochimie et génétique cellulaires [IBGC]
dc.contributor.authorCOULARY-SALIN, Bénédicte
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorPERUCH, Frédéric
IDREF: 152900748
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2014
dc.identifier.issn1570-9639
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20229
dc.description.abstractEnHbREF and HbSRPP are two Hevea brasiliensis proteins present on rubber particles, and probably involved in the coagulation of latex. Their function is unclear, but we previously discovered that REF had amyloid properties, which could be of particular interest during the coagulation process. First, we confirmed that REF and SRPP, homologous and principal proteins in hevea latex, are not glycoproteins. In this work, we investigated various aspects of protein interactions: aggregation, auto-assembling, yeast and erythrocyte agglutination, co-interactions by various biochemical (PAGE, spectroscopy, microscopy), biophysical (DLS, ellipsometry) and structural (TEM, ATR-FTIR, PM-IRRAS) approaches. We demonstrated that both proteins are auto-assembling into different aggregative states: REF polymerizes as an amyloid rich in β-sheets and forms quickly large aggregates (> μm), whereas SRPP auto-assembles in solution into stable nanomultimers of a more globular nature. Both proteins are however able to interact together, and SRPP may inhibit the amyloidogenesis of REF. REF is also able to interact with the membranes of yeasts and erythrocytes, leading to their agglutination. In addition, we also showed that both REF and SRPP did not have antimicrobial activity, whereas their activity on membranes has been clearly evidenced. We may suspect that these aggregative properties, even though they are clearly different, may occur during coagulation, when the membrane is destabilized. The interaction of proteins with membranes could help in the colloidal stability of latex, whereas the protein-protein interactions would contribute to the coagulation process, by bringing rubber particles together or eventually disrupting the particle monomembranes.
dc.language.isoen
dc.publisherElsevier
dc.subject.enSRPP
dc.subject.ensmall rubber article protein
dc.subject.enSRP
dc.subject.ensmall rubber particle protein
dc.subject.enunclassified drug
dc.subject.enantigen antibody reaction
dc.subject.enantimicrobial activity
dc.subject.enarticle
dc.subject.enerythrocyte
dc.subject.enhemagglutination
dc.subject.enHevea brasiliensis
dc.subject.enlipid monolayer
dc.subject.enpriority journal
dc.subject.enprotein interaction
dc.subject.enprotein protein interaction
dc.subject.enAmyloid
dc.subject.enATR-FTIR
dc.subject.enattenuated-total reflectance Fourier-transform infra-red
dc.subject.enAuto-assembly
dc.subject.enDLS
dc.subject.endynamic light scattering
dc.subject.enGHS
dc.subject.enguayule homologue of SRPP
dc.subject.enHb
dc.subject.enHevea brasiliensis (hevea)
dc.subject.enPa
dc.subject.enParthenium argentatum (guayule)
dc.subject.enPM-IRRAS
dc.subject.enpolarization-modulation-infrared reflection-adsorption spectroscopy
dc.subject.enProtein aggregation
dc.subject.enREF
dc.subject.enrubber elongation factor
dc.subject.enrubber elongation factor protein
dc.subject.enrubber
dc.subject.enprotein
dc.subject.enlatex
dc.subject.englycoprotein
dc.subject.enstress-related protein
dc.subject.enTaraxacum brevicorniculatum (dandelion)
dc.subject.enTb
dc.subject.enTEM
dc.subject.entransmission electronic microcopy
dc.subject.enAgglutination
dc.subject.enAmino Acid Sequence
dc.subject.enAntigens
dc.subject.enPlant
dc.subject.enHevea
dc.subject.enMolecular Sequence Data
dc.subject.enPhylogeny
dc.subject.enPlant Proteins
dc.subject.enProtein Binding
dc.subject.enProtein Multimerization
dc.subject.enProtein Structure
dc.subject.enTertiary
dc.subject.enSequence Homology
dc.subject.enAmino Acid
dc.title.enHomologous Hevea brasiliensis REF (Hevb1) and SRPP (Hevb3) present different auto-assembling
dc.typeArticle de revue
dc.identifier.doi10.1016/j.bbapap.2013.10.017
dc.subject.halChimie/Polymères
bordeaux.journalBiochimica et Biophysica Acta Proteins and Proteomics
bordeaux.page473-485
bordeaux.volume1844
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue2
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-01368944
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01368944v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Biochimica%20et%20Biophysica%20Acta%20%20Proteins%20and%20Proteomics&rft.date=2014&rft.volume=1844&rft.issue=2&rft.spage=473-485&rft.epage=473-485&rft.eissn=1570-9639&rft.issn=1570-9639&rft.au=BERTHELOT,%20Karine&LECOMTE,%20Sophie&ESTEVEZ,%20Yannick&COULARY-SALIN,%20B%C3%A9n%C3%A9dicte&PERUCH,%20Fr%C3%A9d%C3%A9ric&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée