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4c4w
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
[[4c4w]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Arcfu Arcfu] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C4W OCA]. <br> | [[4c4w]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Arcfu Arcfu] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C4W OCA]. <br> | ||
| - | <b>Related:</b> [[4c40|4c40]]<br> | + | <b>[[Ligand|Ligands:]]</b> <scene name='pdbligand=2HP:DIHYDROGENPHOSPHATE+ION'>2HP</scene><br> |
| + | <b>[[Related_structure|Related:]]</b> [[4c40|4c40]]<br> | ||
<b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br> | <b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br> | ||
| + | <b>Resources:</b> <span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4c4w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c4w OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4c4w RCSB], [http://www.ebi.ac.uk/pdbsum/4c4w PDBsum]</span><br> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
Kt-23 from Thelohania solenopsae is a rare RNA kink turn (k-turn) where an adenine replaces the normal guanine at the 2n position. L7Ae is a member of a strongly conserved family of proteins that bind a range of k-turn structures in the ribosome, box C/D and H/ACA small nucleolar RNAs and U4 small nuclear RNA. We have solved the crystal structure of T. solenopsae Kt-23 RNA bound to Archeoglobus fulgidus L7Ae protein at a resolution of 2.95 A. The protein binds in the major groove displayed on the outer face of the k-turn, in a manner similar to complexes with standard k-turn structures. The k-turn adopts a standard N3 class conformation, with a single hydrogen bond from A2b N6 to A2n N3. This contrasts with the structure of the same sequence located in the SAM-I riboswitch, where it adopts an N1 structure, showing the inherent plasticity of k-turn structure. This potentially can affect any tertiary interactions in which the RNA participates. | Kt-23 from Thelohania solenopsae is a rare RNA kink turn (k-turn) where an adenine replaces the normal guanine at the 2n position. L7Ae is a member of a strongly conserved family of proteins that bind a range of k-turn structures in the ribosome, box C/D and H/ACA small nucleolar RNAs and U4 small nuclear RNA. We have solved the crystal structure of T. solenopsae Kt-23 RNA bound to Archeoglobus fulgidus L7Ae protein at a resolution of 2.95 A. The protein binds in the major groove displayed on the outer face of the k-turn, in a manner similar to complexes with standard k-turn structures. The k-turn adopts a standard N3 class conformation, with a single hydrogen bond from A2b N6 to A2n N3. This contrasts with the structure of the same sequence located in the SAM-I riboswitch, where it adopts an N1 structure, showing the inherent plasticity of k-turn structure. This potentially can affect any tertiary interactions in which the RNA participates. | ||
Revision as of 10:12, 30 April 2014
Structure of a rare, non-standard sequence k-turn bound by L7Ae protein
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