1l3z

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[[Image:1l3z.gif|left|200px]]<br /><applet load="1l3z" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1l3z.gif|left|200px]]
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caption="1l3z, resolution 2.01&Aring;" />
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'''Crystal Structure Analysis of an RNA Heptamer'''<br />
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{{Structure
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|PDB= 1l3z |SIZE=350|CAPTION= <scene name='initialview01'>1l3z</scene>, resolution 2.01&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=NA:SODIUM ION'>NA</scene>
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|ACTIVITY=
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|GENE=
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}}
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'''Crystal Structure Analysis of an RNA Heptamer'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1L3Z is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with <scene name='pdbligand=NA:'>NA</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L3Z OCA].
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1L3Z is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L3Z OCA].
==Reference==
==Reference==
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The crystal structure of an alternating RNA heptamer r(GUAUACA) forming a six base-paired duplex with 3'-end adenine overhangs., Shi K, Pan B, Sundaralingam M, Nucleic Acids Res. 2003 Mar 1;31(5):1392-7. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12595546 12595546]
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The crystal structure of an alternating RNA heptamer r(GUAUACA) forming a six base-paired duplex with 3'-end adenine overhangs., Shi K, Pan B, Sundaralingam M, Nucleic Acids Res. 2003 Mar 1;31(5):1392-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12595546 12595546]
[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Pan, B.]]
[[Category: Pan, B.]]
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[[Category: rna]]
[[Category: rna]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:41:04 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:26:03 2008''

Revision as of 10:26, 20 March 2008

Image:1l3z.gif


PDB ID 1l3z

Drag the structure with the mouse to rotate
, resolution 2.01Å
Ligands:
Coordinates: save as pdb, mmCIF, xml



Crystal Structure Analysis of an RNA Heptamer


Overview

The crystal structure of an alternating RNA heptamer r(GUAUACA) has been determined to 2.0 A resolution and refined to an R(work) of 17.1% and R(free) of 18.5% using 2797 reflections. The heptamer crystallized in the space group C222 with a unit cell of a = 25.74, b = 106.58, c = 30.26 A and two independent strands in the asymmetric unit. Each heptamer forms a duplex with its symmetry-related strand and each duplex contains six Watson-Crick base pairs and 3'-end adenosine overhangs. Therefore, two kinds of duplex (duplex 1 and duplex 2) are formed. Duplexes 1 stack on each other forming a pseudo-continuous column, which is typical of the RNA packing mode, while duplex 2 is typical of A-DNA packing with its termini in abutting interactions. Overhang adenine residues stack within the duplexes with C3'-endo sugar pucker and C2'-endo sugar pucker in duplexes 1 and 2, respectively. A Na+ ion in the crystal lattice is water bridged to two N1 atoms of symmetry-related A7 bases.

About this Structure

1L3Z is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.

Reference

The crystal structure of an alternating RNA heptamer r(GUAUACA) forming a six base-paired duplex with 3'-end adenine overhangs., Shi K, Pan B, Sundaralingam M, Nucleic Acids Res. 2003 Mar 1;31(5):1392-7. PMID:12595546

Page seeded by OCA on Thu Mar 20 12:26:03 2008

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