SPACI score report for 3tzv in ASTRAL 2.04:

PDB Entry: 3tzv
SPACI score: 0.2
AEROSPACI score: 0.2

Experiment type: XRAY
Resolution: 3.06
R-factor: 0.239
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.577
WCK2 WHAT_CHECK Ramachandran: -3.384
WCK3 WHAT_CHECK Chi angles: -3.176
WCK4 WHAT_CHECK Backbone: 2.159

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).