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402d
From Proteopedia
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| - | [[Image:402d.gif|left|200px]] | + | [[Image:402d.gif|left|200px]] |
| - | + | ||
| - | '''5'-R(*CP*GP*CP*CP*AP*GP*CP*G)-3'''' | + | {{Structure |
| + | |PDB= 402d |SIZE=350|CAPTION= <scene name='initialview01'>402d</scene>, resolution 2.300Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''5'-R(*CP*GP*CP*CP*AP*GP*CP*G)-3'''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 402D is a [ | + | 402D 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=402D OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of an RNA internal loop consisting of tandem C-A+ base pairs., Jang SB, Hung LW, Chi YI, Holbrook EL, Carter RJ, Holbrook SR, Biochemistry. 1998 Aug 25;37(34):11726-31. PMID:[http:// | + | Structure of an RNA internal loop consisting of tandem C-A+ base pairs., Jang SB, Hung LW, Chi YI, Holbrook EL, Carter RJ, Holbrook SR, Biochemistry. 1998 Aug 25;37(34):11726-31. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9718295 9718295] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Carter, R.]] | [[Category: Carter, R.]] | ||
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[[Category: rna with tandem c-a+ base pair]] | [[Category: rna with tandem c-a+ base pair]] | ||
| - | ''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 19:07:52 2008'' |
Revision as of 17:07, 20 March 2008
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| , resolution 2.300Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
5'-R(*CP*GP*CP*CP*AP*GP*CP*G)-3'
Overview
The crystal structure of the RNA octamer 5'-CGC(CA)GCG-3' has been determined from X-ray diffraction data to 2.3 A resolution. In the crystal, this oligomer forms a self-complementary double helix in the asymmetric unit. Tandem non-Watson-Crick C-A and A-C base pairs comprise an internal loop in the middle of the duplex, which is incorporated with little distortion of the A-form double helix. From the geometry of the C-A base pairs, it is inferred that the adenosine imino group is protonated and donates a hydrogen bond to the carbonyl group of the cytosine. The wobble geometry of the C-A+ base pairs is very similar to that of the common U-G non-Watson-Crick pair.
About this Structure
402D is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Structure of an RNA internal loop consisting of tandem C-A+ base pairs., Jang SB, Hung LW, Chi YI, Holbrook EL, Carter RJ, Holbrook SR, Biochemistry. 1998 Aug 25;37(34):11726-31. PMID:9718295
Page seeded by OCA on Thu Mar 20 19:07:52 2008
