150l

<StructureSection load='150l' size='340' side='right' caption='[[150l]], [[Resolution|resolution]] 2.20&Aring;' scene=''>

<table><tr><td colspan='2'>[[150l]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=150L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=150L FirstGlance]. <br>

</td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr>

<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=150l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=150l OCA], [http://www.rcsb.org/pdb/explore.do?structureId=150l RCSB], [http://www.ebi.ac.uk/pdbsum/150l PDBsum]</span></td></tr>

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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/50/150l_consurf.spt"</scriptWhenChecked>

</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].

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== Publication Abstract from PubMed ==

Solvent-binding sites were compared in 10 different crystal forms of phage T4 lysozyme that were refined using data from 2.6 A to 1.7 A resolution. The sample included 18 crystallographically independent lysozyme molecules. Despite different crystallization conditions, variable crystal contacts, changes due to mutation, and varying attention to solvent during crystallographic refinement, 62% of the 20 most frequently occupied sites were conserved. Allowing for potential steric interference from neighboring molecules in the crystal lattice, this fraction increased to 79% of the sites. There was, however, no solvent-binding site that was occupied in all 18 lysozyme molecules. A buried double site was occupied in 17 instances and 2 other internal sites were occupied 15 times. Apart from these buried sites, the most frequently occupied sites were often at the amino-termini of alpha-helices. Solvent molecules at the most conserved sites tended to have crystallographic thermal factors lower than average, but atoms with low B-factors were not restricted to these sites. Although superficial inspection may suggest that only 50-60% (or less) of solvent-binding sites are conserved in different crystal forms of a protein, it appears that many sites appear to be empty either because of steric interference or because the apparent occupancy of a given site can vary from crystal to crystal. The X-ray method of identifying sites is somewhat subjective and tends to result in specification only of those solvent molecules that are well ordered and bound with high occupancy, even though there is clear evidence for solvent bound at many additional sites.(ABSTRACT TRUNCATED AT 250 WORDS)

Conservation of solvent-binding sites in 10 crystal forms of T4 lysozyme.,Zhang XJ, Matthews BW Protein Sci. 1994 Jul;3(7):1031-9. PMID:7920248<ref>PMID:7920248</ref>

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

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[[Category: Enterobacteria phage t4]]

[[Category: Lysozyme]]

[[Category: Faber, H R.]]

[[Category: Matthews, B W.]]