wwPDB validation report of PDB entry 1I43

3-(PHOSPHONOMETHYL)PYRIDINE-2-CARBOXYLIC ACID

1qgn is cystathionine gamma-synthase from Nicotiana tabacum

CYSTATHIONINE GAMMA-SYNTHASE (E.C.4.2.99.9)
CYSTATHIONINE GAMMA-SYNTHASE IN COMPLEX WITH THE INHIBITOR PPCA
geometric validation package for ligand chemistry in protein x-ray structures
20191225.v01 (using entries in the PDB archive December 25th 2019)