. 2012 Sep 6;7(9):e44309. doi: 10.1371/journal.pone.0044309

Table 2. L-tryptophan binding constants (K_d) of three wild type and three mutant TRAP.

TRAP oligomer	Number of subunits	K_d/µM
B. halodurans wild type	12	4.5
B. stearothermophilus wild type	11	3.2
B. stearothermophilus E71stop	12	3.9
B. subtilis wild type	11	6.9
B. subtilis K71stop	12	6.5
B. subtilis S72N	12	2.8

Table 2. L-tryptophan binding constants (Kd) of three wild type and three mutant TRAP.