1l3z
From Proteopedia
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- | [[Image:1l3z.gif|left|200px]] | + | [[Image:1l3z.gif|left|200px]] |
- | + | ||
- | '''Crystal Structure Analysis of an RNA Heptamer''' | + | {{Structure |
+ | |PDB= 1l3z |SIZE=350|CAPTION= <scene name='initialview01'>1l3z</scene>, resolution 2.01Å | ||
+ | |SITE= | ||
+ | |LIGAND= <scene name='pdbligand=NA:SODIUM ION'>NA</scene> | ||
+ | |ACTIVITY= | ||
+ | |GENE= | ||
+ | }} | ||
+ | |||
+ | '''Crystal Structure Analysis of an RNA Heptamer''' | ||
+ | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
- | 1L3Z is a [ | + | 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== | ||
- | 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:// | + | 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]] | ||
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''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
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, resolution 2.01Å | |||||||
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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
Categories: Protein complex | Pan, B. | Shi, K. | Sundaralingam, M. | NA | Rna