SPACI score report for 3ph4 in ASTRAL 2.08:

PDB Entry: 3ph4
SPACI score: 0.43
AEROSPACI score: 0.43

Experiment type: XRAY
Resolution: 2.07
R-factor: 0.186
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.571
WCK2 WHAT_CHECK Ramachandran: -1.207
WCK3 WHAT_CHECK Chi angles: -0.064
WCK4 WHAT_CHECK Backbone: 3.817

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).