Curli nucleation outer membrane protein; May be involved in the biogenesis of curli organelles.

csgBAC operon transcriptional regulator; The master regulator for adhesive curli fimbriae expression; necessary for transcription of the csgBAC/ymdA operon. Plays a positive role in biofilm formation. May have the capability to respond to starvation and/or high cell density by activating csgBA transcription. Low-level constitutive expression confers an adherent curli fimbriae- expressing phenotype, up-regulates 10 genes and down-regulates 14 others.

Curlin subunit, amyloid curli fibers, cryptic; Curlin is the structural subunit of the curli fimbriae. Curli are coiled surface structures that assemble preferentially at growth temperatures below 37 degrees Celsius. Curli can bind to fibronectin; Belongs to the CsgA/CsgB family.

Curlin nucleator protein, minor subunit in curli complex; Curlin is the structural subunit of the curli fimbriae. Curli are coiled surface structures that assemble preferentially at growth temperatures below 37 degrees Celsius. Curli can bind to fibronectin. The minor subunit is the nucleation component of curlin monomers. Coexpression of cellulose and thin aggregative fimbriae (curli fimbrae or fibers) leads to a hydrophobic network with tightly packed cells embedded in a highly inert matrix that confers cohesion, elasticity and tissue-like properties to colonies. Belongs to the CsgA/ [...]

Curli assembly protein; Plays a role in the extracellular assembly of CsgA into thin aggregative fimbriae (Tafi) fibers. Assembly may also require CsgE. Tafi are thought to be assembled via an extracellular nucleation- precipitation (ENP) pathway, and possibly also via an intracellular non-CsgC-dependent pathway (By similarity).

Inner membrane protein.

Diguanylate cyclase, cellulose regualtor; A probable diguanylate cyclase. The last member of a cascade of expressed proteins, its expression requires DgcM. DgcC production induces biosynthesis of cellulose in some E.coli isolates, but not in K12 strains. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria.

Transcriptional activator of csgD and csgBA; Activates transcription of csgD, the master regulator of biofilm formation, by binding to its promoter region. Also controls the transcription of cadC and ibaG. Part of a signaling cascade that regulates curli biosynthesis. The cascade is composed of two c-di-GMP control modules, in which c-di-GMP controlled by the DgcE/PdeH pair (module I) regulates the activity of the DgcM/PdeR pair (module II), which in turn regulates activity of the transcription factor MlrA.