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Composition of rubber particles of Hevea brasiliensis, Parthenium argentatum, Ficus elastica, and Euphorbia lactiflua indicates unconventional surface structure
Natural rubber (cis-1,4-polyisoprene) is formed inside plant cells from allylic diphosphate initiators and isopentenyl diphosphate, and packaged in subcellular rubber particles. In addition toExpand
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Characterization of cis-prenyl transferase activity localised in a buoyant fraction of rubber particles from Ficus elastica latex
We investigated rubber biosynthesis in Ficus elastica, a latex-producing plant species. Rubber particles were purified and enzyme activity was assayed by following the incorporation of radiolabel,Expand
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A protein from Ficus elastica rubber particles is related to proteins from Hevea brasiliensis and Parthenium argentatum
Abstract Rubber particles, having high rubber transferase (RuT) activity, were isolated from Ficus elastica latex. The predominant protein in these rubber particles is a large hydrophobicExpand
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Hypoallergenicity of guayule rubber particle proteins compared to Hevea latex proteins
Abstract Hevea brasiliensis Muell. Arg. is currently the sole commercial source of natural rubber. However, products made from Hevea latex are responsible for causing allergies affecting anExpand
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Effect of Different Allylic Diphosphates on the Initiation of New Rubber Molecules and on Cis-1,4-polyisoprene Biosynthesis in Guayule (Parthenium argentatum Gray)
Summary Natural rubber biosynthesis is the rubber-particle-bound rubber-transferase-catalyzed cis-1,4-polymerization of isoprene monomers derived from isopentenyl diphosphate (IPP). In addition toExpand
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Identification of Parthenium argentatum rubber particle proteins immunoprecipitated by an antibody that specifically inhibits rubber transferase activity
Abstract We have shown that an antibody raised to LPR ( M , 367 000) the predominant protein on Ficus elastica rubber particles, recognized three proteins from Parthenium argentatum (guayule) rubberExpand
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Characterization and Performance Testing of Guayule Latex
Abstract Physical and biological properties were determined for a preliminary production run of low-ammonia latex from guayule (GR latex). GR latex, and dipped films produced from compounded GRExpand
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Immunoinhibition of rubber particle-bound cis-prenyl transferases in Ficus elastica and Parthenium argentatum
Abstract A cis -prenyl transferase (‘rubber transferase’) catalyses the polymerization of isoprene units, derived from isopentenyl diphosphate, into natural rubber ( cis -1,4-polyisoprene). CisExpand
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Alternative natural rubber
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