abstract:In biology, LSm proteins are a family of RNA-binding proteins found in virtually every cellular organism. LSm is a contraction of 'like Sm', because the first identified members of the LSm protein family were the Sm proteins.
The maingenera are PterisL., Colysis Presl, WoodwardiaSm., Selaginella Spring and Asplenium L., among which Pteris L. and WoodwardiaSm. have relativelyintensivedistribution.