SNL, or Fascin actin-bundling protein 1, is a human gene encoded by FSCN1. It may also be known as: Fascin; 55 kDa actin-bundling protein; Singed-like protein; Singed, drosophila, homolog-like; actin bundling protein; HSN. The encoded protein has an amino acid length of 493 and a mass of 54.5 kDa. Other isoforms may exist. SNL is a member of the Fascin family. Homologs of this gene exist in other organisms, including: Rat.