6bri

Publication Abstract from PubMed

Coiled coils are well described as powerful oligomerization motifs and exhibit a large diversity of functions, including gene regulation, cell division, membrane fusion and drug extrusion. The archaea S-layer originated right-handed coiled coil -RHCC-NT- is characterized by extreme stability and is free of cysteine and histidine moieties. In the current study, we have followed a multidisciplinary approach to investigate the capacity of RHCC-NT to bind a variety of ionic complex metal ions. At the outside of the RHCC-NT, one mercury ion forms an electrostatic interaction with the S-methyl moiety of the single methionine residue present in each coil. We demonstrate that RHCC-NT is reducing and incorporating metallic mercury in the large-sized interior cavities which are lined up along the tetrameric channel.

Reductive power of the archaea right-handed coiled coil nanotube (RHCC-NT) and incorporation of mercury clusters inside protein cages.,McDougall M, McEleney K, Francisco O, Trieu B, Ogbomo EK, Tomy G, Stetefeld J J Struct Biol. 2018 Jun 5. pii: S1047-8477(18)30137-0. doi:, 10.1016/j.jsb.2018.05.013. PMID:29879486^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.