The solution structure of the ribosome-associated cold shock response protein Yfia of Escherichia coli was determined by nuclear magnetic resonance with a RMSD of 0.6A. Yfia shows a global beta-alpha-beta-beta-beta-alpha folding topology similar to its homologue HI0257 of Haemophilus influenzae and the double-strand-binding domain of Drosophila Staufen protein ...
The solution structure of the ribosome-associated cold shock response protein Yfia of Escherichia coli was determined by nuclear magnetic resonance with a RMSD of 0.6A. Yfia shows a global beta-alpha-beta-beta-beta-alpha folding topology similar to its homologue HI0257 of Haemophilus influenzae and the double-strand-binding domain of Drosophila Staufen protein. Yfia and HI0257 differ in their surface charges and in the composition of their flexible C-termini, indicating their specificity to different target molecules. Both proteins exhibit a hydrophobic and polar region, which probably functions as interaction site for protein complex formation. Despite their similarity to the dsRBD fold, Yfia does not bind to model fragments of 16S ribosomal RNA as determined by NMR titration and gel shift experiments.
Related Citations:
A protein residing at the subunit interface of the bacterial ribosome Agafonov, D.E., Kolb, V.A., Nazimov, I.V., Spirin, A.S. (1999) Proc Natl Acad Sci U S A 96: 12345
1H, 13C and 15N resonance assignments of the ribosome-associated cold shock response protein Yfia of Escherichia coli Kalinin, A., Rak, A., Shcherbakov, D., Bayer, P. (2002) J Biomol NMR 23: 335
Organizational Affiliation:
Department of Physical Biochemistry, Max-Planck-Institute for Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany.
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