5NB9

Structure of the N-terminal domain of the Escherichia Coli ProQ RNA binding protein

5NB9 の概要

• エントリーDOI: 10.2210/pdb5nb9/pdb
• NMR情報: BMRB: 34110
• 分子名称: RNA chaperone ProQ (1 entity in total)
• 機能のキーワード: fino, proq, rna, chaperone
• 由来する生物種: Escherichia coli O45:K1 (strain S88 / ExPEC)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 15107.91

構造登録者

Gonzales, G.,Hardwick, S.,Maslen, S.,Skehel, M.,Holmqvist, E.,Vogel, J.,Bateman, A.,Luisi, B.,Broadhurst, R. (登録日: 2017-03-01, 公開日: 2017-05-03, 最終更新日: 2024-06-19)

主引用文献

Gonzalez, G.M.,Hardwick, S.W.,Maslen, S.L.,Skehel, J.M.,Holmqvist, E.,Vogel, J.,Bateman, A.,Luisi, B.F.,Broadhurst, R.W.
Structure of the Escherichia coli ProQ RNA-binding protein.
RNA, 23:696-711, 2017

PubMed Abstract: The protein ProQ has recently been identified as a global small noncoding RNA-binding protein in , and a similar role is anticipated for its numerous homologs in divergent bacterial species. We report the solution structure of ProQ, revealing an N-terminal FinO-like domain, a C-terminal domain that unexpectedly has a Tudor domain fold commonly found in eukaryotes, and an elongated bridging intradomain linker that is flexible but nonetheless incompressible. Structure-based sequence analysis suggests that the Tudor domain was acquired through horizontal gene transfer and gene fusion to the ancestral FinO-like domain. Through a combination of biochemical and biophysical approaches, we have mapped putative RNA-binding surfaces on all three domains of ProQ and modeled the protein's conformation in the and RNA-bound forms. Taken together, these data suggest how the FinO, Tudor, and linker domains of ProQ cooperate to recognize complex RNA structures and serve to promote RNA-mediated regulation.

PubMed: 28193673
DOI: 10.1261/rna.060343.116

実験手法

SOLUTION NMR