SPACI score report for 2cav in ASTRAL 1.55:

PDB Entry: 2cav
SPACI score: 0.38
AEROSPACI score: 0.38

Experiment type: XRAY
Resolution: 2
R-factor: 0.208
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -0.493
WCK2 WHAT_CHECK Ramachandran: -1.435
WCK3 WHAT_CHECK Chi angles: -2.377
WCK4 WHAT_CHECK Backbone: 0.871

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).