title: The Remorin C-terminal Anchor was shaped by convergent evolution among membrane binding domains.
abstract: StREM1.3 Remorin is a well-established plant raftophilic protein, predominantly associated with sterol- and sphingolipid-rich membrane rafts. We recently identified a C-terminal domain (RemCA) required and sufficient for StREM1.3 anchoring to the plasma membrane. Here, we report a search for homologs and analogs of RemCA domain in publicly available protein sequence and structure databases. We could not identify RemCA homologous domains outside the Remorin family but we identified domains sharing bias in amino-acid composition and predicted structural fold with RemCA in bacterial, viral and animal proteins. These results suggest that RemCA emerged by convergent evolution among unrelated membrane binding domain.
authors.affiliation: Laboratoire des Interactions Plantes-Microorganismes (LIPM); UMR441 INRA-CNRS; Castanet-Tolosan, France.
authors.forename: Sylvain
authors.initials: S
authors.lastname: Raffaele
authors.forename: Artemis
authors.initials: A
authors.lastname: Perraki
authors.forename: Sébastien
authors.initials: S
authors.lastname: Mongrand
mesh_terms: D000595:Amino Acid Sequence; D001419:Bacteria / Q000235:genetics; D002352:Carrier Proteins / Q000235:genetics* / Q000378:metabolism; D019143:Evolution, Molecular; D021962:Membrane Microdomains / Q000235:genetics* / Q000378:metabolism; D010750:Phosphoproteins / Q000235:genetics* / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D017434:Protein Structure, Tertiary; D011198:Solanum tuberosum / Q000235:genetics*; D014780:Viruses / Q000235:genetics
chemical_list: D002352:Carrier Proteins; D010750:Phosphoproteins; D010940:Plant Proteins; C103794:remorin
keywords: convergent evolution; lipid rafts; membrane anchor; remorin