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[[Image:1ofx.jpg|left|200px]]


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==CRYSTAL STRUCTURE OF AN OKAZAKI FRAGMENT AT 2 ANGSTROMS RESOLUTION==
The line below this paragraph, containing "STRUCTURE_1ofx", creates the "Structure Box" on the page.
<StructureSection load='1ofx' size='340' side='right'caption='[[1ofx]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1ofx]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OFX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OFX FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</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&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SPM:SPERMINE'>SPM</scene></td></tr>
{{STRUCTURE_1ofx|  PDB=1ofx  |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ofx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ofx OCA], [https://pdbe.org/1ofx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ofx RCSB], [https://www.ebi.ac.uk/pdbsum/1ofx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ofx ProSAT]</span></td></tr>
 
</table>
'''CRYSTAL STRUCTURE OF AN OKAZAKI FRAGMENT AT 2 ANGSTROMS RESOLUTION'''
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</StructureSection>
 
[[Category: Large Structures]]
==Overview==
[[Category: Egli M]]
In DNA replication, Okazaki fragments are formed as double-stranded intermediates during synthesis of the lagging strand. They are composed of the growing DNA strand primed by RNA and the template strand. The DNA oligonucleotide d(GGGTATACGC) and the chimeric RNA-DNA oligonucleotide r(GCG)d(TATACCC) were combined to form a synthetic Okazaki fragment and its three-dimensional structure was determined by x-ray crystallography. The fragment adopts an overall A-type conformation with 11 residues per turn. Although the base-pair geometry, particularly in the central TATA part, is distorted, there is no evidence for a transition from the A- to the B-type conformation at the junction between RNA.DNA hybrid and DNA duplex. The RNA trimer may, therefore, lock the complete fragment in an A-type conformation.
[[Category: Rich A]]
 
[[Category: Usman N]]
==About this Structure==
[[Category: Zhang S]]
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OFX OCA].  
 
==Reference==
Crystal structure of an Okazaki fragment at 2-A resolution., Egli M, Usman N, Zhang SG, Rich A, Proc Natl Acad Sci U S A. 1992 Jan 15;89(2):534-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1370582 1370582]
[[Category: Egli, M.]]
[[Category: Rich, A.]]
[[Category: Usman, N.]]
[[Category: Zhang, S.]]
[[Category: A-dna/rna]]
[[Category: Double helix]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 03:47:57 2008''