wwPDB validation report of PDB entry 1GPA

RESIDUES 282 - 285 AND 837 - 839 ARE DISORDERED IN R STATE PHOSPHORYLASES. IN THE R STATE GLYCOGEN PHOSPHORYLASE A STRUCTURE (THIS ENTRY) THERE WAS SOME DENSITY TO SUPPORT A TENTATIVE TRACE FOR THESE RESIDUES. IN THIS ENTRY COORDINATES FOR THESE RESIDUES ARE GIVEN WITH AN OCCUPANCY OF 0.00 BECAUSE THE EVIDENCE WAS NOT SUFFICIENT TO INCLUDE THEM IN THE REFINEMENT.
RESIDUE 380 IS LEU IN THE SEQUENCE (K.NAKANO,P.K.HWANG, R.J.FLETTERICK, FEBS LETT., V. 204, P. 283, 1986) BUT IT HAS BEEN PRESENTED AS ILE IN THIS ENTRY. THIS ASSIGNMENT WAS MADE IN THE ORIGINAL STRUCTURE DETERMINATION AT 1.9 ANGSTROMS (PRESENTED IN PROTEIN DATA BANK ENTRY 1GPB) AND CARRIED THROUGH TO THE OTHER ENTRIES. ILE IS MORE CONSISTENT WITH THE ELECTRON DENSITY. HOWEVER, THE RESOLUTION AT 1.9 ANGSTROMS DOES NOT ALLOW A DEFINITIVE ASSIGNMENT.

GLYCOGEN PHOSPHORYLASE A (E.C.2.4.1.1) (R STATE)
STRUCTURAL MECHANISM FOR GLYCOGEN PHOSPHORYLASE CONTROL BY PHOSPHORYLATION AND AMP

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