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. 1997 Apr 15;94(8):3691–3696. doi: 10.1073/pnas.94.8.3691

Table 3.

Kinetic parameters of open complex formation at PRM

Activator Wild-type RNA polymerase
Mutant RNA polymerase
KB × 10−6, M−1 kf × 103, s−1 KB × 10−6, M−1 kf × 103, s−1
None 13 5.0 7.3 5.6
cI wild type 11 86 63 13
cI-pc2 25 5.0 4.3 150