SPACI score report for 2crk in ASTRAL 2.03:

PDB Entry: 2crk
SPACI score: 0.32
AEROSPACI score: 0.32

Experiment type: XRAY
Resolution: 2.35
R-factor: 0.195
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.797
WCK2 WHAT_CHECK Ramachandran: -2.685
WCK3 WHAT_CHECK Chi angles: -3.932
WCK4 WHAT_CHECK Backbone: -0.625

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).