SPACI score report for 2pua in ASTRAL 1.73:

PDB Entry: 2pua
SPACI score: 0.24
AEROSPACI score: 0.24 (mutant; see below)

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.166
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.713
WCK2 WHAT_CHECK Ramachandran: -3.927
WCK3 WHAT_CHECK Chi angles: -4.982
WCK4 WHAT_CHECK Backbone: -5.198

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOP contain the phrase mutant. The full comment is: "protein/DNA complex; complexed with 6mp; mutant"

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).