Table II.

Summary of R1 Dihedral Angles

T4L Mutant	Rotamer	Temp. (K)	X1	X2	X3	X4	X5	Occupancy (%)
82R1	{m,m}	100	–68°	–56°	101°			100
131R1	{m,m}	100	–69°	–60°				50
131R1	{t,p}	100	175°	80°				50
131R1	{m,m}	291	–75°	–57°				50
131R1	{t,p}	291	175°	83°				50
151R1	{m,m}	100	–83°	–72°				50
151R1	{m,m}	291	–82°	–72°				70