2hgl

<StructureSection load='2hgl' size='340' side='right' caption='[[2hgl]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>

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

</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hgm|2hgm]], [[2hgn|2hgn]]</td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HNRPF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=2hgl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hgl OCA], [http://pdbe.org/2hgl PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2hgl RCSB], [http://www.ebi.ac.uk/pdbsum/2hgl PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2hgl ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/HNRPF_HUMAN HNRPF_HUMAN]] Component of the heterogeneous nuclear ribonucleoprotein (hnRNP) complexes which provide the substrate for the processing events that pre-mRNAs undergo before becoming functional, translatable mRNAs in the cytoplasm. Plays a role in the regulation of alternative splicing events. Binds G-rich sequences in pre-mRNAs and keeps target RNA in an unfolded state.<ref>PMID:20526337</ref>

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== Publication Abstract from PubMed ==

The heterogeneous nuclear ribonucleoprotein (hnRNP) F belongs to the hnRNP H family involved in the regulation of alternative splicing and polyadenylation and specifically recognizes poly(G) sequences (G-tracts). In particular, hnRNP F binds a G-tract of the Bcl-x RNA and regulates its alternative splicing, leading to two isoforms, Bcl-x(S) and Bcl-x(L), with antagonist functions. In order to gain insight into G-tract recognition by hnRNP H members, we initiated an NMR study of human hnRNP F. We present the solution structure of the three quasi RNA recognition motifs (qRRMs) of hnRNP F and identify the residues that are important for the interaction with the Bcl-x RNA by NMR chemical shift perturbation and mutagenesis experiments. The three qRRMs exhibit the canonical betaalphabetabetaalphabeta RRM fold but additional secondary structure elements are present in the two N-terminal qRRMs of hnRNP F. We show that qRRM1 and qRRM2 but not qRRM3 are responsible for G-tract recognition and that the residues of qRRM1 and qRRM2 involved in G-tract interaction are not on the beta-sheet surface as observed for the classical RRM but are part of a short beta-hairpin and two adjacent loops. These regions define a novel interaction surface for RNA recognition by RRMs.

 

<div class="pdbe-citations 2hgl" style="background-color:#fffaf0;"></div>

[[Category: Human]]

[[Category: Allain, F H.T]]

[[Category: Dominguez, C]]

[[Category: G-quadruplex]]

[[Category: G-tract]]

[[Category: Splicing]]