SPACI score report for 2gtp in ASTRAL 2.08:

PDB Entry: 2gtp
SPACI score: 0.29
AEROSPACI score: 0.29

Experiment type: XRAY
Resolution: 2.55
R-factor: 0.228
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.263
WCK2 WHAT_CHECK Ramachandran: -1.233
WCK3 WHAT_CHECK Chi angles: -1.503
WCK4 WHAT_CHECK Backbone: 0.487

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).