Protein
Biofilm-surface layer protein A
Organism
Bacillus subtilis (strain 168)
Function
Involved in biofilm formation (PubMed:18978066, PubMed:21742882). Self-polymerizes and forms a layer on the surface of biofilms that confers hydrophobicity to the biofilm (PubMed:22571672, PubMed:23904481). The layer is stable and capable of resistance to high mechanical force compression (PubMed:28701036). Required for complex colony architecture (PubMed:18978066). May function synergistically with exopolysaccharides and TasA amyloid fibers to facilitate the assembly of the biofilm matrix (PubMed:21742882).
Similarity
Belongs to the BslA/BslB family.
Sequence
MKRKLLSSLAISALSLGLLVSAPTASFAAESTSTKAHTESTMRTQSTASLFATITGASKTEWSFSDIELTYRPNTLLSLGVMEFTLPSGFTANTKDTLNGNALRTTQILNNGKTVRVPLALDLLGAGEFKLKLNNKTLPAAGTYTFRAENKSLSIGNKFYAEASIDVAKRSTPPTQPCGCN