1l1w

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|PDB= 1l1w |SIZE=350|CAPTION= <scene name='initialview01'>1l1w</scene>
|PDB= 1l1w |SIZE=350|CAPTION= <scene name='initialview01'>1l1w</scene>
|SITE=
|SITE=
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|LIGAND=
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|LIGAND= <scene name='pdbligand=A:ADENOSINE-5&#39;-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5&#39;-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5&#39;-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=U:URIDINE-5&#39;-MONOPHOSPHATE'>U</scene>
|ACTIVITY=
|ACTIVITY=
|GENE=
|GENE=
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|DOMAIN=
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1l1w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l1w OCA], [http://www.ebi.ac.uk/pdbsum/1l1w PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1l1w RCSB]</span>
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[[Category: tetraloop]]
[[Category: tetraloop]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:25:15 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:56:49 2008''

Revision as of 18:56, 30 March 2008

Image:1l1w.gif


PDB ID 1l1w

Drag the structure with the mouse to rotate
Ligands: , , ,
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



NMR structure of a SRP19 binding domain in human SRP RNA


Overview

Assembly of the human signal recognition particle (SRP) requires SRP19 protein to bind to helices 6 and 8 of SRP RNA. In the present study, structure of a 29-mer RNA composing the SRP19 binding site in helix 6 was determined by NMR spectroscopy. The two A:C mismatches were continuously stacked to each other and formed wobble type A:C base pairs. The GGAG tetraloop in helix 6 was found to adopt a similar conformation to that of GNRA tetraloop, suggesting that these tetraloops are included in an extensive new motif GNRR. Compared with the crystal structure of helix 6 in complex with SRP19 determined previously, the GGAG tetraloop in the complex was found to adopt a similar conformation to the free form, although the loop structure becomes more open upon SRP19 binding. Thus, SRP19 is thought to recognize the overall fold of the GGAG loop.

About this Structure

1L1W is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.

Reference

Solution structure of a SRP19 binding domain in human SRP RNA., Sakamoto T, Morita S, Tabata K, Nakamura K, Kawai G, J Biochem. 2002 Aug;132(2):177-82. PMID:12153712

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