1a63

<StructureSection load='1a63' size='340' side='right'caption='[[1a63]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>

<table><tr><td colspan='2'>[[1a63]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecobd Ecobd]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A63 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1A63 FirstGlance]. <br>

</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a63 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a63 OCA], [http://pdbe.org/1a63 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1a63 RCSB], [http://www.ebi.ac.uk/pdbsum/1a63 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1a63 ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/RHO_ECOLI RHO_ECOLI]] Facilitates transcription termination by a mechanism that involves rho binding to the nascent RNA, activation of rho's RNA-dependent ATPase activity, and release of the mRNA from the DNA template. RNA-dependent NTPAse which utilizes all four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01884]

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== Publication Abstract from PubMed ==

Rho protein is an essential hexameric RNA-DNA helicase that binds nascent mRNA transcripts and terminates transcription in a wide variety of eubacterial species. The NMR solution structure of the RNA binding domain of rho, rho130, is presented. This structure consists of two sub-domains, an N-terminal three-helix bundle and a C-terminal beta-barrel that is structurally similar to the oligosaccharide/oligonucleotide binding (OB) fold. Chemical shift changes of rho130 upon RNA binding and previous mutagenetic analyses of intact rho suggest that residues Asp 60, Phe 62, Phe 64, and Arg 66 are critical for binding and support the hypothesis that ssRNA/ssDNA binding is localized in the beta-barrel sub-domain. On the basis of these studies and the tertiary structure of rho130, we propose that residues Asp 60, Phe 62, Phe 64, Arg 66, Tyr 80, Lys 105, and Arg 109 participate in RNA-protein interactions.

The NMR structure of the RNA binding domain of E. coli rho factor suggests possible RNA-protein interactions.,Briercheck DM, Wood TC, Allison TJ, Richardson JP, Rule GS Nat Struct Biol. 1998 May;5(5):393-9. PMID:9587002<ref>PMID:9587002</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1a63" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Ecobd]]

[[Category: Allison, T J]]

[[Category: Briercheck, D M]]

[[Category: Richardson, J P]]

[[Category: Rule, G S]]

[[Category: Wood, T C]]

[[Category: Transcription termination]]