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1fka: Difference between revisions

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[[Image:1fka.gif|left|200px]]
[[Image:1fka.png|left|200px]]


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==Overview==
{{ABSTRACT_11007480}}
The small ribosomal subunit performs the decoding of genetic information during translation. The structure of that from Thermus thermophilus shows that the decoding center, which positions mRNA and three tRNAs, is constructed entirely of RNA. The entrance to the mRNA channel will encircle the message when a latch-like contact closes and contributes to processivity and fidelity. Extended RNA helical elements that run longitudinally through the body transmit structural changes, correlating events at the particle's far end with the cycle of mRNA translocation at the decoding region. 96% of the nucleotides were traced and the main fold of all proteins was determined. The latter are either peripheral or appear to serve as linkers. Some may assist the directionality of translocation.


==About this Structure==
==About this Structure==
1FKA is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. The following page contains interesting information on the relation of 1FKA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb10_1.html Ribosome]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FKA OCA].  
1FKA is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. The following page contains interesting information on the relation of 1FKA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb10_1.html Ribosome]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FKA OCA].  
==Reference==
Structure of functionally activated small ribosomal subunit at 3.3 angstroms resolution., Schluenzen F, Tocilj A, Zarivach R, Harms J, Gluehmann M, Janell D, Bashan A, Bartels H, Agmon I, Franceschi F, Yonath A, Cell. 2000 Sep 1;102(5):615-23. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11007480 11007480]
[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Ribosome]]
[[Category: Ribosome]]
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[[Category: 30s ribosomal subunit]]
[[Category: 30s ribosomal subunit]]
[[Category: Protein-rna complex]]
[[Category: Protein-rna complex]]
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