View source for 5aza


==Crystal structure of MBP-sAglB fusion protein with a 20-residue spacer in the connector helix==
<StructureSection load='5aza' size='340' side='right'caption='[[5aza]], [[Resolution|resolution]] 2.08&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5aza]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12] and [https://en.wikipedia.org/wiki/Pyrococcus_furiosus_COM1 Pyrococcus furiosus COM1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5AZA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5AZA FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.08&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900001:alpha-maltose'>PRD_900001</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5aza FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5aza OCA], [https://pdbe.org/5aza PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5aza RCSB], [https://www.ebi.ac.uk/pdbsum/5aza PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5aza ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/MALE_ECOLI MALE_ECOLI] Involved in the high-affinity maltose membrane transport system MalEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides.[https://www.uniprot.org/uniprot/I6V0B8_9EURY I6V0B8_9EURY] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Contacts with neighboring molecules in protein crystals inevitably restrict the internal motions of intrinsically flexible proteins. The resultant clear electron densities permit model building, as crystallographic snapshot structures. Although these still images are informative, they could provide biased pictures of the protein motions. If the mobile parts are located at a site lacking direct contacts in rationally designed crystals, then the amplitude of the movements can be experimentally analyzed. We propose a fusion protein method, to create crystal contact-free space (CCFS) in protein crystals and to place the mobile parts in the CCFS. Conventional model building fails when large amplitude motions exist. In this study, the mobile parts appear as smeared electron densities in the CCFS, by suitable processing of the X-ray diffraction data. We applied the CCFS method to a highly mobile presequence peptide bound to the mitochondrial import receptor, Tom20, and a catalytically relevant flexible segment in the oligosaccharyltransferase, AglB. These two examples demonstrated the general applicability of the CCFS method to the analysis of the spatial distribution of motions within protein molecules. This article is protected by copyright. All rights reserved.

Rational design of crystal contact-free space in protein crystals for analyzing spatial distribution of motions within protein molecules.,Matsuoka R, Shimada A, Komuro Y, Sugita Y, Kohda D Protein Sci. 2015 Dec 22. doi: 10.1002/pro.2867. PMID:26694222<ref>PMID:26694222</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5aza" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Pyrococcus furiosus COM1]]
[[Category: Kohda D]]
[[Category: Matsuoka R]]