TABLE 1.

Effect of proteolytic enzymes and iodination on the adhesion of E. faecium to the porcine intestinal mucus receptor

Treatment	Relative adhesion (%)a
Proteolytic enzymesb
Control	100
Trypsin	57.6 ± 5.5*
Protease	162.3 ± 5.8*
Proteinase K	130.0 ± 6.3*
Iodate
Acetate buffer (pH 4.5)	100.7 ± 4.3
Sodium iodate	78.3 ± 3.8*
Metaperiodate	39.0 ± 4.8*

^aAdhesion is expressed as the percentage of radioactivity in the treatment relative to the control (treated with PBS buffer [pH 7.0]). Values are mean ± standard error of three separate experiments. *, Significantly different from the control (P < 0.01). 

^bProteinase K (EC 3.4.21.64) from Tritirachium album; trypsin (EC 3.4.21.4) from bovine pancreas; protease (pronase; EC 3.4.24.31) from Streptomyces griseus.