TABLE 1.

Kinetic parameters, Stiffness and Torque

	kon	kcat	Stiffness	Torque
	s−1 m−1	s−1	pN·nm	pN·nm
Wild typea	2.6 × 107	3.9 × 102	78	43
βE190A	4.9 × 106	1.3 × 10−1	38	25
βE190Q	1.6 × 106	9.3 × 10−3	NDb	ND
βK164A	5.2 × 101	2.8 × 10−2	21	10
αR364A	2.4 × 104	4.1 × 10−1	42	28

^a Data were measured previously (38, 44).

^b ND means not determined.