SPACI score report for 1am4 in ASTRAL 1.57:

PDB Entry: 1am4
SPACI score: 0.21
AEROSPACI score: 0.21

Experiment type: XRAY
Resolution: 2.7
R-factor: 0.23
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -3.578
WCK2 WHAT_CHECK Ramachandran: -4.563
WCK3 WHAT_CHECK Chi angles: -3.479
WCK4 WHAT_CHECK Backbone: -1.321

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).