SPACI score report for 2nxt in ASTRAL 2.03:

PDB Entry: 2nxt
SPACI score: 0.85
AEROSPACI score: 0.85

Experiment type: XRAY
Resolution: 1.15
R-factor: 0.161
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.719
WCK2 WHAT_CHECK Ramachandran: -1.65
WCK3 WHAT_CHECK Chi angles: 0.619
WCK4 WHAT_CHECK Backbone: -0.485

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).