SPACI score report for 1an2 in ASTRAL 1.55:

PDB Entry: 1an2
SPACI score: 0.15
AEROSPACI score: 0.15

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.232
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -6.247
WCK2 WHAT_CHECK Ramachandran: -7.254
WCK3 WHAT_CHECK Chi angles: -4.04
WCK4 WHAT_CHECK Backbone: -3.076

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).