9F1F

Remorin protein StREM13_160-198

Summary for 9F1F

• Entry DOI: 10.2210/pdb9f1f/pdb
• NMR Information: BMRB: 52390
• Descriptor: Remorin (1 entity in total)
• Functional Keywords: remorin, membrane anchor, peptide binding protein
• Biological source: Nicotiana benthamiana
• Total number of polymer chains: 1
• Total formula weight: 4356.11

Authors

Xu, Z.,Habenstein, B. (deposition date: 2024-04-18, release date: 2024-09-11, Last modification date: 2024-12-18)

Primary citation

Xu, Z.,Schahl, A.,Jolivet, M.D.,Legrand, A.,Grelard, A.,Berbon, M.,Morvan, E.,Lagardere, L.,Piquemal, J.P.,Loquet, A.,Germain, V.,Chavent, M.,Mongrand, S.,Habenstein, B.
Dynamic pre-structuration of lipid nanodomain-segregating remorin proteins.
Commun Biol, 7:1620-1620, 2024

PubMed Abstract: Remorins are multifunctional proteins, regulating immunity, development and symbiosis in plants. When associating to the membrane, remorins sequester specific lipids into functional membrane nanodomains. The multigenic protein family contains six groups, classified upon their protein-domain composition. Membrane targeting of remorins occurs independently from the secretory pathway. Instead, they are directed into different nanodomains depending on their phylogenetic group. All family members contain a C-terminal membrane anchor and a homo-oligomerization domain, flanked by an intrinsically disordered region of variable length at the N-terminal end. We here combined molecular imaging, NMR spectroscopy, protein structure calculations and advanced molecular dynamics simulation to unveil a stable pre-structuration of coiled-coil dimers as nanodomain-targeting units, containing a tunable fuzzy coat and a bar code-like positive surface charge before membrane association. Our data suggest that remorins fold in the cytosol with the N-terminal disordered region as a structural ensemble around a dimeric anti-parallel coiled-coil core containing a symmetric interface motif reminiscent of a hydrophobic Leucine zipper. The domain geometry, the charge distribution in the coiled-coil remorins and the differences in structures and dynamics between C-terminal lipid anchors of the remorin groups provide a selective platform for phospholipid binding when encountering the membrane surface.

PubMed: 39639105
DOI: 10.1038/s42003-024-07330-y

Experimental method

SOLUTION NMR