Table 5. Structure-refinement statistics.

Data	EGFRK	ThiT	YetJ
Space group	I23	P3121	P6522
Resolution (Å)	3.2	3.0	2.8
No. of reflections	16644	25496	15009
R work/R free	0.189/0.209	0.198/0.234	0.221/0.260
No. of atoms
Total	2459	3172	1636
Protein	2459	2830	1632
Ligand/ion/detergent	—	342	4
Average B (Å2)
Overall	94.9	56.5	49.6
Protein	94.9	54.2	49.6
Ligand/ion	—	77.6	66.4
R.m.s. deviations
Bond lengths (Å)	0.002	0.002	0.002
Bond angles (°)	0.494	0.660	0604
PDB code	4tks	4tkr	4tkq