CsgA is the major structural subunit of the curli fimbriae. Curli are coiled surface structures that assemble preferentially at growth temperatures below 37 degrees Celsius. Curli are the major proteinaceous component of a complex extracellular matrix produced by many ''Enterobacteriaceae''. Curli were first discovered in the late 1980s on ''Escherichia coli'' strains that caused bovine mastitis, and have since been implicated in many physiological and pathogenic processes of ''E. coli'' and ''Salmonella'' spp. Curli fibers are involved in adhesion to surfaces, cell aggregation, and biofilm formation. Curli also mediate host cell adhesion and invasion, and they are potent inducers of the host inflammatory response. The biobrick contains a strong promotor.

CsgA is the major structural subunit of the curli fimbriae. Curli are coiled surface structures that assemble preferentially at growth temperatures below 37 degrees Celsius. Curli are the major proteinaceous component of a complex extracellular matrix produced by many ''Enterobacteriaceae''. Curli were first discovered in the late 1980s on ''Escherichia coli'' strains that caused bovine mastitis, and have since been implicated in many physiological and pathogenic processes of ''E. coli'' and ''Salmonella'' spp. Curli fibers are involved in adhesion to surfaces, cell aggregation, and biofilm formation. Curli also mediate host cell adhesion and invasion, and they are potent inducers of the host inflammatory response. The biobrick contains a strong promotor.

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