Crystal structure of E. coli YhbY: a representative of a novel class of RNA binding proteinsOstheimer, G.J., Barkan, A., Matthews, B.W.
(2002) Structure 10: 1593-1601
- PubMed: 12429100
- DOI: https://doi.org/10.1016/s0969-2126(02)00886-9
- Primary Citation of Related Structures:
- PubMed Abstract:
E. coli YhbY belongs to a conserved family of hypothetical proteins represented in eubacteria, archaea, and plants (Pfam code UPF0044). Three maize proteins harboring UPF0044-like domains are required for chloroplast group II intron splicing, and bioinformatic data suggest a role for prokaryotic UPF0044 members in translation. The crystal structure of YhbY has been determined. YhbY has a fold similar to that of the C-terminal domain of translation initiation factor 3 (IF3C), which binds to 16S rRNA in the 30S ribosome. Modeling studies indicate that the same surface is highly basic in all members of UPF0044, suggesting a conserved RNA binding surface. Taken together, the evidence suggests that members of UPF0044 constitute a previously unrecognized class of RNA binding domain.
Institute of Molecular Biology, 1229 University of Oregon, Eugene, OR 97403, USA.