SelB: Difference between revisions
Michal Harel (talk | contribs) No edit summary |
Michal Harel (talk | contribs) No edit summary |
||
| Line 1: | Line 1: | ||
{{STRUCTURE_1wsu| PDB=1wsu | SIZE=400| SCENE= |right|CAPTION=Elongation factor SelB C terminal complex with RNA [[1wsu]] }} | {{STRUCTURE_1wsu| PDB=1wsu | SIZE=400| SCENE= |right|CAPTION=Elongation factor SelB C terminal complex with RNA [[1wsu]] }} | ||
Revision as of 09:03, 14 February 2012
Elongation factor SelB uses several methods to recognize the selenocysteine insertion sequence found in messenger RNA. The insertion sequence forms a hairpin loop with an unstacked guanine base in the loop. This guanine forms specific hydrogen bonds with the protein and with two bridging water molecules (shown in cyan in the jmol). The planar base is also sandwiched between three amino acids in the protein, which form a tight hydrophobic pocket. This is best seen using a spacefilling diagram. The overall shape of the hairpin is recognized by contacts with several arginine and lysine amino acids. In particular, notice the intimate contact formed by both the charged nitrogen and hydrophobic carbon chain of arginine 606.
This page complements the article on Selenocysteine Synthase in the Molecule of the Month Series. See also Teaching Scenes, Tutorials, and Educators' Pages.
Additional Resources
For additional information, see: Translation
Proteopedia Page Contributors and Editors (what is this?)
David S. Goodsell, Michal Harel, Eric Martz, David Canner, Joel L. Sussman, Alexander Berchansky, Eran Hodis
