SPACI score report for 4k7w in ASTRAL 2.06:

PDB Entry: 4k7w
SPACI score: 0.5
AEROSPACI score: 0.5

Experiment type: XRAY
Resolution: 1.76
R-factor: 0.203
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.612
WCK2 WHAT_CHECK Ramachandran: 0.083
WCK3 WHAT_CHECK Chi angles: -1.052
WCK4 WHAT_CHECK Backbone: 4.603

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).