SPACI score report for 2rdf in ASTRAL 2.05:

PDB Entry: 2rdf
SPACI score: 0.41
AEROSPACI score: 0.41

Experiment type: XRAY
Resolution: 2.01
R-factor: 0.218
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.674
WCK2 WHAT_CHECK Ramachandran: -0.464
WCK3 WHAT_CHECK Chi angles: 0.003
WCK4 WHAT_CHECK Backbone: 0.341

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).