229d: Difference between revisions
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'''DNA ANALOG OF YEAST TRANSFER RNA PHE ANTICODON DOMAIN WITH MODIFIED BASES 5-METHYL CYTOSINE AND 1-METHYL GUANINE''' | '''DNA ANALOG OF YEAST TRANSFER RNA PHE ANTICODON DOMAIN WITH MODIFIED BASES 5-METHYL CYTOSINE AND 1-METHYL GUANINE''' | ||
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==About this Structure== | ==About this Structure== | ||
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=229D OCA]. | |||
==Reference== | ==Reference== | ||
Design, biological activity and NMR-solution structure of a DNA analogue of yeast tRNA(Phe) anticodon domain., Basti MM, Stuart JW, Lam AT, Guenther R, Agris PF, Nat Struct Biol. 1996 Jan;3(1):38-44. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8548453 8548453] | Design, biological activity and NMR-solution structure of a DNA analogue of yeast tRNA(Phe) anticodon domain., Basti MM, Stuart JW, Lam AT, Guenther R, Agris PF, Nat Struct Biol. 1996 Jan;3(1):38-44. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8548453 8548453] | ||
[[Category: Agris, P F.]] | [[Category: Agris, P F.]] | ||
[[Category: Basti, M M.]] | [[Category: Basti, M M.]] | ||
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[[Category: Lam, A T.]] | [[Category: Lam, A T.]] | ||
[[Category: Stuart, J W.]] | [[Category: Stuart, J W.]] | ||
[[Category: | [[Category: Anticodon]] | ||
[[Category: | [[Category: Dna]] | ||
[[Category: | [[Category: Hairpin loop]] | ||
[[Category: | [[Category: Transfer rna]] | ||
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | |||
Revision as of 15:20, 3 May 2008
DNA ANALOG OF YEAST TRANSFER RNA PHE ANTICODON DOMAIN WITH MODIFIED BASES 5-METHYL CYTOSINE AND 1-METHYL GUANINE
Overview
Design of biologically active DNA analogues of the yeast tRNA(Phe) anticodon domain, tDNAPheAC, required the introduction of a d(m5C)-dependent, Mg(2+)-induced structural transition and the d(m1G) disruption of an intra-loop dC.dG base pair. The modifications were introduced at residues corresponding to m5C-40 and wybutosine-37 in tRNA(Phe). Modified tDNAPheAC inhibited translation by 50% at a tDNAPheAC:ribosome ratio of 8:1. The molecule's structure has been determined by NMR spectroscopy and restrained molecular dynamics with an overall r.m.s.d. of 2.8 A and 1.7 A in the stem, and is similar to the tRNA(Phe) anticodon domain in conformation and dimensions. The tDNAPheAC structure may provide a guide for the design of translation inhibitors as potential therapeutic agents.
About this Structure
Full crystallographic information is available from OCA.
Reference
Design, biological activity and NMR-solution structure of a DNA analogue of yeast tRNA(Phe) anticodon domain., Basti MM, Stuart JW, Lam AT, Guenther R, Agris PF, Nat Struct Biol. 1996 Jan;3(1):38-44. PMID:8548453 Page seeded by OCA on Sat May 3 18:20:38 2008