SPACI score report for 2j0n in ASTRAL 2.08:

WARNING! The SPACI score for this entry is 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: 2j0n
SPACI score: 0.27 (not valid)
AEROSPACI score: -1.73 (not valid) (truncat; see below)

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.25
PCK1 PROCHECK Ramachandran: N/A
PCK2 PROCHECK Chi-1 angle: N/A
WCK1 WHAT_CHECK Packing: -0.182
WCK2 WHAT_CHECK Ramachandran: -2.277
WCK3 WHAT_CHECK Chi angles: -4.994
WCK4 WHAT_CHECK Backbone: 3.014

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOPe contain the phrase truncat. The full comment is: "truncated, lacks two N-terminal helices; automatically matched to 2J0N A:144-314; automated match to d2j0na1"

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).