SPACI score report for 6cv4 in ASTRAL 2.08:

WARNING! The SPACI score for this entry is not valid. This is not an X-ray structure, so the resolution and R-factor listed may be arbitrary and not valid. The R-factor is not available and an abitrary R-factor has been used. The PROCHECK parameters for this entry could not be obtained, and poor results have been arbitrarily assumed.

PDB Entry: 6cv4
SPACI score: 0.15 (not valid)
AEROSPACI score: 0.15 (not valid)

Experiment type: EM
Resolution: 3.03
R-factor: 0.25
PCK1 PROCHECK Ramachandran: N/A
PCK2 PROCHECK Chi-1 angle: N/A
PCK3 PROCHECK H-bonds: N/A
WCK1 WHAT_CHECK Packing: -1.926
WCK2 WHAT_CHECK Ramachandran: -2.888
WCK3 WHAT_CHECK Chi angles: 3.1870000000000003
WCK4 WHAT_CHECK Backbone: 1.2289999999999999

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).