1esg

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[[Image:1esg.gif|left|200px]]
 
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==RESTRICTION ENDONUCLEASE BAMHI BOUND TO A NON-SPECIFIC DNA.==
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The line below this paragraph, containing "STRUCTURE_1esg", creates the "Structure Box" on the page.
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<StructureSection load='1esg' size='340' side='right'caption='[[1esg]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1esg]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ESG FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1esg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1esg OCA], [https://pdbe.org/1esg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1esg RCSB], [https://www.ebi.ac.uk/pdbsum/1esg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1esg ProSAT]</span></td></tr>
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{{STRUCTURE_1esg| PDB=1esg | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/T2BA_BACAM T2BA_BACAM] Recognizes the double-stranded sequence GGATCC and cleaves after G-1.
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'''RESTRICTION ENDONUCLEASE BAMHI BOUND TO A NON-SPECIFIC DNA.'''
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==See Also==
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*[[BamHI|BamHI]]
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*[[Endonuclease 3D structures|Endonuclease 3D structures]]
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==Overview==
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__TOC__
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The central problem faced by DNA binding proteins is how to select the correct DNA sequence from the sea of nonspecific sequences in a cell. The problem is particularly acute for bacterial restriction enzymes because cleavage at an incorrect DNA site could be lethal. To understand the basis of this selectivity, we report here the crystal structure of endonuclease BamHI bound to noncognate DNA. We show that, despite only a single base pair change in the recognition sequence, the enzyme adopts an open configuration that is on the pathway between free and specifically bound forms of the enzyme. Surprisingly, the DNA drops out of the binding cleft with a total loss of base-specific and backbone contacts. Taken together, the structure provides a remarkable snapshot of an enzyme poised for linear diffusion (rather than cleavage) along the DNA.
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</StructureSection>
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==About this Structure==
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1ESG is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESG OCA].
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==Reference==
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Structure of BamHI bound to nonspecific DNA: a model for DNA sliding., Viadiu H, Aggarwal AK, Mol Cell. 2000 May;5(5):889-95. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10882125 10882125]
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[[Category: Bacillus amyloliquefaciens]]
[[Category: Bacillus amyloliquefaciens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Type II site-specific deoxyribonuclease]]
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[[Category: Aggarwal AK]]
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[[Category: Aggarwal, A K.]]
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[[Category: Viadiu H]]
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[[Category: Viadiu, H.]]
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[[Category: Non-specific dna-protein complex.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:28:03 2008''
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Current revision

RESTRICTION ENDONUCLEASE BAMHI BOUND TO A NON-SPECIFIC DNA.

PDB ID 1esg

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