– Involved in biofilm formation. Self-polymerizes and forms a layer on the surface of biofilms that confers hydrophobicity to the biofilm. The layer is stable and capable of resistance to high mechanical force compression. Required for complex colony architecture. May function synergistically with exopolysaccharides and TasA amyloid fibers to facilitate the assembly of the biofilm matrix. YuaB Protein, Bacillus subtilis, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 35.3 kDa and the accession number is P71014.