Cell-surface components or appendages of bacteria that facilitate adhesion to other cells or to inanimate surfaces. Most fimbriae of gram-negative bacteria function as adhesins, but in many cases it is a minor subunit protein at the tip of the fimbriae that is the actual adhesin. In gram-positive bacteria, a protein or polysaccharide surface layer serves as the specific adhesin.
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RDF/XMLCreated 2006-01-19, last modified 2016-06-30