488d
From Proteopedia
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| - | [[Image:488d.gif|left|200px]] | + | [[Image:488d.gif|left|200px]] |
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| - | '''CATALYTIC RNA ENZYME-PRODUCT COMPLEX''' | + | {{Structure |
| + | |PDB= 488d |SIZE=350|CAPTION= <scene name='initialview01'>488d</scene>, resolution 3.10Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CD:CADMIUM ION'>CD</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CATALYTIC RNA ENZYME-PRODUCT COMPLEX''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 488D is a [ | + | 488D 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=488D OCA]. |
==Reference== | ==Reference== | ||
| - | Capture and visualization of a catalytic RNA enzyme-product complex using crystal lattice trapping and X-ray holographic reconstruction., Murray JB, Szoke H, Szoke A, Scott WG, Mol Cell. 2000 Feb;5(2):279-87. PMID:[http:// | + | Capture and visualization of a catalytic RNA enzyme-product complex using crystal lattice trapping and X-ray holographic reconstruction., Murray JB, Szoke H, Szoke A, Scott WG, Mol Cell. 2000 Feb;5(2):279-87. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10882069 10882069] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Murray, J B.]] | [[Category: Murray, J B.]] | ||
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[[Category: ribozyme]] | [[Category: ribozyme]] | ||
| - | ''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 19:08:52 2008'' |
Revision as of 17:08, 20 March 2008
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| , resolution 3.10Å | |||||||
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| Ligands: | |||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CATALYTIC RNA ENZYME-PRODUCT COMPLEX
Overview
We have determined the crystal structure of the enzyme-product complex of the hammerhead ribozyme by using a reinforced crystal lattice to trap the complex prior to dissociation and by employing X-ray holographic image reconstruction, a real-space electron density imaging and refinement procedure. Subsequent to catalysis, the cleavage site residue (C-17), together with its 2',3'-cyclic phosphate, adopts a conformation close to and approximately perpendicular to the Watson-Crick base-pairing faces of two highly conserved purines in the ribozyme's catalytic pocket (G-5 and A-6). We observe several interactions with functional groups on these residues that have been identified as critical for ribozyme activity by biochemical analyses but whose role has defied explanation in terms of previous structural analyses. These interactions may therefore be relevant to the hammerhead ribozyme reaction mechanism.
About this Structure
488D is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Capture and visualization of a catalytic RNA enzyme-product complex using crystal lattice trapping and X-ray holographic reconstruction., Murray JB, Szoke H, Szoke A, Scott WG, Mol Cell. 2000 Feb;5(2):279-87. PMID:10882069
Page seeded by OCA on Thu Mar 20 19:08:52 2008
