TABLE 2.

Growth phase-related differences in the levels of expression of proteins selected for N-terminal protein sequencing

Protein spotLevel of expression
Planktonic cells (2 h)PGW cells (2 h)Biofilm cells (2 h)Planktonic cells (18 h)PGW cells (18 h)Biofilm cells (18 h)
B5a0a00−2−1−1
B11b012020
D5h000−133
E1d000011
E7gAbA0A00
E7h003033
E9pAAAAAUc
G1b012233
  • a A value of 0 indicates a level of synthesis similar to that of the corresponding spot in the 2-h planktonic growth phase (reference spot intensity). A positive value indicates up-regulation, and a negative value indicates repression or down-regulation.

  • b A, protein spot is absent.

  • c U, protein spot is unique to the growth phase.