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1qdt

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[[Image:1qdt.jpg|left|200px]]
[[Image:1qdt.jpg|left|200px]]
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{{Structure
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|PDB= 1qdt |SIZE=350|CAPTION= <scene name='initialview01'>1qdt</scene>, resolution 2.10&Aring;
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>
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{{STRUCTURE_1qdt| PDB=1qdt | SCENE= }}
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|RELATEDENTRY=[[1qus|1QUS]], [[1qut|1QUT]], [[1qdr|1QDR]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qdt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qdt OCA], [http://www.ebi.ac.uk/pdbsum/1qdt PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1qdt RCSB]</span>
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'''2.1 A RESOLUTION STRUCTURE OF ESCHERICHIA COLI LYTIC TRANSGLYCOYSLASE SLT35 IN COMPLEX WITH CALCIUM'''
'''2.1 A RESOLUTION STRUCTURE OF ESCHERICHIA COLI LYTIC TRANSGLYCOYSLASE SLT35 IN COMPLEX WITH CALCIUM'''
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[[Category: Asselt, E J.van.]]
[[Category: Asselt, E J.van.]]
[[Category: Dijkstra, A J.]]
[[Category: Dijkstra, A J.]]
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[[Category: alpha-helical protein with an five-stranded antiparallel beta-sheet]]
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[[Category: Alpha-helical protein with an five-stranded antiparallel beta-sheet]]
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[[Category: ef-hand]]
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[[Category: Ef-hand]]
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[[Category: glycosyl transferase]]
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[[Category: Glycosyl transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:10:12 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:12:22 2008''
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Revision as of 03:10, 3 May 2008

Image:1qdt.jpg

Template:STRUCTURE 1qdt

2.1 A RESOLUTION STRUCTURE OF ESCHERICHIA COLI LYTIC TRANSGLYCOYSLASE SLT35 IN COMPLEX WITH CALCIUM


Overview

The Escherichia coli lytic transglycosylase Slt35 contains a single metal ion-binding site that resembles EF-hand calcium-binding sites. The Slt35 EF-hand is only the second observation of such a domain in a prokaryotic protein. Two crystal structures at 2.1 A resolution show that both Ca2+ ions and Na+ ions can bind to the EF-hand domain, but in subtly different configurations. Heat-induced unfolding studies demonstrate that Ca2+ ions are preferentially bound, and that only Ca2+ ions significantly increase the melting temperature of Slt35. This shows that the EF-hand calcium-binding domain is important for the stability of Slt35.

About this Structure

1QDT is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Binding of calcium in the EF-hand of Escherichia coli lytic transglycosylase Slt35 is important for stability., van Asselt EJ, Dijkstra BW, FEBS Lett. 1999 Sep 24;458(3):429-35. PMID:10570954 Page seeded by OCA on Sat May 3 06:10:12 2008

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