Glucan-binding Proteins of Streptococcus mutatis Serotype c

Three glucan-binding proteins have been isolated from the extracellular fluid of cultures of Streptococcus mutansserotype c.These proteins were adsorbed to glucans containing 1,3-α or 1,6-α bonds and linked to various chromatographic supports: they were eluted from columns by a dextran solution. Glucosyltransferase activity was associated with two of the glucan-binding proteins.