1nof

<table><tr><td colspan='2'>[[1nof]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"erwinia_carotovora_var._chrysanthemi"_(burkholder_et_al._1953)_dye_1969 "erwinia carotovora var. chrysanthemi" (burkholder et al. 1953) dye 1969]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NOF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1NOF FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene></td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">xynA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=556 "Erwinia carotovora var. chrysanthemi" (Burkholder et al. 1953) Dye 1969])</td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Endo-1,4-beta-xylanase Endo-1,4-beta-xylanase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.8 3.2.1.8] </span></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1nof FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nof OCA], [http://pdbe.org/1nof PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nof RCSB], [http://www.ebi.ac.uk/pdbsum/1nof PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1nof ProSAT]</span></td></tr>

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== Publication Abstract from PubMed ==

The room-temperature structure of xylanase (EC 3.2.1.8) from the bacterial plant pathogen Erwinia chrysanthemi expressed in Escherichia coli, a 45 kDa, 413-amino acid protein belonging to glycoside hydrolase family 5, has been determined by multiple isomorphous replacement and refined to a resolution of 1.42 A. This represents the first structure of a xylanase not belonging to either glycoside hydrolase family 10 or family 11. The enzyme is composed of two domains similar to most family 10 xylanases and the alpha-amylases. The catalytic domain (residues 46-315) has a (beta/alpha)(8)-barrel motif with a binding cleft along the C-terminal side of the beta-barrel. The catalytic residues, Glu165 and Glu253, determined by correspondence to other family 5 and family 10 glycoside hydrolases, lie inside this cleft on the C-terminal ends of beta-strands 4 and 7, respectively, with an O(epsilon)2...O(epsilon)1 distance of 4.22 A. The smaller domain (residues 31-43 and 323-413) has a beta(9)-barrel motif with five of the strands interfacing with alpha-helices 7 and 8 of the catalytic domain. The first 13 N-terminal residues form one beta-strand of this domain. Residues 44, 45, and 316-322 form the linkers between this domain and the catalytic domain.

First crystallographic structure of a xylanase from glycoside hydrolase family 5: implications for catalysis.,Larson SB, Day J, Barba de la Rosa AP, Keen NT, McPherson A Biochemistry. 2003 Jul 22;42(28):8411-22. PMID:12859186<ref>PMID:12859186</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1nof" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Endo-1,4-beta-xylanase]]

[[Category: Day, J]]

[[Category: Rosa, A P.Barba De La]]

[[Category: Carbohydrate-binding module]]

[[Category: Catalytic domain]]

[[Category: Glycohydrolase family 5]]

[[Category: Hydrolase]]

[[Category: Xylanase]]