wwPDB validation report of PDB entry 7B4N

Antigen NY-CO-13,Phosphoprotein p53,Tumor suppressor p53

Two enantiomers, QNN and QN8 are produced by addition reaction of the michael acceptor compound "2-methylenequinuclidin-3-one" with cysteine or lysine. As such, QNN and QN8 bind covalently to the thiol group of cysteine or amino group of lysine. The chiral definitions of QNN and QN8 bound to cysteines are reversed to that of the pseudo free ligands.

Structural basis of reactivation of oncogenic p53 mutants by a small molecule: methylene quinuclidinone (MQ). Human wild-type p53DBD bound to DNA and MQ: wt-DNA-MQ (II)

The largest off-origin peak in the Patterson function is 8.52% of the height of the origin peak. No significant pseudotranslation is detected.

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)