THHL1 is an alias for the gene, Trichohyalin like 1, in humans. Other names include: Trichohyalin-like protein 1; Protein S100-A17; S100 calcium-binding protein A17; Basalin; S100A17; trichohyalin-like 1. The encoded protein has an amino acid length of 904 and a mass of 99.3 kDa. THHL1 is a member of the S-100 family. This gene shares homology with other species, including: Mouse.