wwPDB validation report of PDB entry 4P4K

HLA class II histocompatibility antigen, DP alpha 1 chain

mim2 peptide,HLA class II histocompatibility antigen, DP beta 1 chain

DP(W3),DP(W4),HLA-SB alpha chain,MHC class II DP3-alpha,MHC class II DPA1

HLA class II histocompatibility antigen,DP(W4) beta chain,MHC class II antigen DPB1

HLA-DP2 alpha chain, HLA-DP2 beta chain, hTCRav22 alpha chain, hTCRav22 beta chain, water
Structural Basis of Chronic Beryllium Disease: Bridging the Gap Between allergic hypersensitivity and auto immunity

The analyses of the Patterson function reveals a significant off-origin peak that is 26.41 % of the origin peak, indicating pseudo-translational symmetry. The chance of finding a peak of this or larger height by random in a structure without pseudo-translational symmetry is equal to 2.6495e-03. The detected translational NCS is most likely also responsible for the elevated intensity ratio. See the relevant section of the logfile for more details.

structure factor analysis and validation
geometric validation package for ligand chemistry in protein x-ray structures
20191225.v01 (using entries in the PDB archive December 25th 2019)