{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T04:37:10Z","timestamp":1785472630373,"version":"3.56.0"},"reference-count":42,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2009,11,24]],"date-time":"2009-11-24T00:00:00Z","timestamp":1259020800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001537","name":"University of Auckland","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100001537","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Foundation for Research Science and Technology, NZ"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proteins"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The release of polysaccharide from the plant cell wall is a key process to release the stored energy from plant biomass. Within the ruminant digestive system, a host of commensal microorganisms speed the breakdown of plant cell matter releasing fermentable sugars. The presence of phenolic compounds, most notably ferulic acid (FA), esterified within the cell wall is thought to pose a significant impediment to the degradation of the plant cell wall. The structure of a FA esterase from the ruminant bacterium <jats:italic>Butyrivibrio proteoclasticus<\/jats:italic> has been determined in two different space groups, in both the apo\u2010form, and the ligand bound form with FA located in the active site. The structure reveals a new lid domain that has no structural homologues in the PDB. The flexibility of the lid domain is evident by the presence of three different conformations adopted by different molecules in the crystals. In the FA\u2010bound structures, these conformations show sequential binding and closing of the lid domain over the substrate. Enzymatic activity assays demonstrate a broad activity against plant\u2010derived hemicellulose, releasing at least four aromatic compounds including FA, coumaric acid, coumarin\u20103\u2010carboxylic acid, and cinnamic acid. The rumen is a complex ecosystem that efficiently degrades plant biomass and the genome of <jats:italic>B. proteoclasticus<\/jats:italic> contains greater than 130 enzymes, which are potentially involved in this process of which Est1E is the first to be well characterized. Proteins 2010. \u00a9 2009 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/prot.22662","type":"journal-article","created":{"date-parts":[[2009,11,24]],"date-time":"2009-11-24T19:39:35Z","timestamp":1259091575000},"page":"1457-1469","source":"Crossref","is-referenced-by-count":67,"title":["Structural and functional characterization of a promiscuous feruloyl esterase (Est1E) from the rumen bacterium <i>Butyrivibrio proteoclasticus<\/i>"],"prefix":"10.1002","volume":"78","author":[{"given":"David C.","family":"Goldstone","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silas G.","family":"Villas\u2010B\u00f4as","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marisa","family":"Till","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William 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