Atom Nomenclature for PLW

The atom nomenclature in PDB data files was revised with the release of data in the PDB Format Version 3.0. These changes make the PDB atom names used by PDB compliant with existing IUPAC nomenclature for standard amino acid and nucleotides (Pure & Appl. Chem., 70, 117-142, 1998) with the exception of the well established convention for C-terminal atoms OXT and HXT. A small number of additional changes were introduced in Version 3 to make atom labeling more conventional. The following chemical diagrams and tables provide the correspondences between atom names used in Version 3 and Version 2 PDB formats.

Labeled Chemical Diagrams

Chemical diagram with format V3 atom labels (heavy atoms)
Chemical diagram with format V3 atom labels (all atoms)
Chemical diagram with format V2 atom labels (heavy atoms)
Chemical diagram with format V2 atom labels (all atoms)

Atom Name Correspondences for PLW

Atom Name (V3) Atom Name (V2)
O O
C C
C1 C1
C2 C2
N3 N
C4 C4
C3 C3
N2 N2
N1 N1
CA C5
N N3
C6 C6
C7 C7
C8 C8
C9 C9
OXT OXT
H1 H1
HXT HXT
H21C H21C
H22C H22C
H23C H23C
H3 H3
HA H5
H H31N
H2 H32N
H6 H6
H71C H71C
H72C H72C
H73C H73C
H81C H81C
H82C H82C
H91C H91C
H92C H92C
H93C H93C