l-glycero-d-mannoheptose ( heptose ) , a constituent of the inner core region of almost all lps , is a potent inhibitor of the specific binding of 125i-labeled rb2 lps , whereas other monosaccharides , including 3-deoxy-d-manno-2-octulosonic acid ( kdo ) , have weak or negligible inhibitor activity .
C0019229
heptose
C0026492
monosaccharides