2KN4

The structure of the RRM domain of SC35

2KN4 の概要

• エントリーDOI: 10.2210/pdb2kn4/pdb
• 分子名称: Immunoglobulin G-binding protein G,Serine/arginine-rich splicing factor 2 (1 entity in total)
• 機能のキーワード: rrm domain, cell wall, igg-binding protein, peptidoglycan-anchor, secreted, mrna processing, mrna splicing, nucleus, phosphoprotein, rna-binding, rna binding protein
• 由来する生物種: Streptococcus sp. group G; 詳細
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 18133.10

構造登録者

Clayton, J.C.,Goult, B.T.,Lian, L.-Y. (登録日: 2009-08-14, 公開日: 2010-08-18, 最終更新日: 2024-05-01)

主引用文献

Phelan, M.M.,Goult, B.T.,Clayton, J.C.,Hautbergue, G.M.,Wilson, S.A.,Lian, L.-Y.
The structure and selectivity of the SR protein SRSF2 RRM domain with RNA
Nucleic Acids Res., 2011

PubMed Abstract: SRSF2 is a prototypical SR protein which plays important roles in the alternative splicing of pre-mRNA. It has been shown to be involved in regulatory pathways for maintaining genomic stability and play important roles in regulating key receptors in the heart. We report here the solution structure of the RNA recognition motifs (RRM) domain of free human SRSF2 (residues 9-101). Compared with other members of the SR protein family, SRSF2 structure has a longer L3 loop region. The conserved aromatic residue in the RNP2 motif is absent in SRSF2. Calorimetric titration shows that the RNA sequence 5'AGCAGAGUA3' binds SRSF2 with a K(d) of 61 ± 1 nM and a 1:1 stoichiometry. NMR and mutagenesis experiments reveal that for SFSF2, the canonical β1 and β3 interactions are themselves not sufficient for effective RNA binding; the additional loop L3 is crucial for RNA complex formation. A comparison is made between the structures of SRSF2-RNA complex with other known RNA complexes of SR proteins. We conclude that interactions involving the L3 loop, N- and C-termini of the RRM domain are collectively important for determining selectivity between the protein and RNA.

PubMed: 22140111
DOI: 10.1093/nar/gkr1164

実験手法

SOLUTION NMR