Histidine phosphocarrier protein, mol. model

  • T.Blundell & N Campillo
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Molecular model of histidine phosphocarrier protein HPR (pdb code: 1pch)(ribbon diagram, cylinders are alpha-helices, His-15 as stick model, no labels). HPR is part of the phospho- enolpyruvate-dependent sugar phospho- transferase system (PTS), a major carbohydrate active- transport system moving certain hexoses across the cytoplasmic membrane of bacteria and mycoplasmas. The His-15 at the active site of HPR accepts a multi-enzyme system (Enzyme I) and transfers it to various sugar- specific PTS permeases.

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