Atom Nomenclature for 9NF

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 9NF

Atom Name (V3) Atom Name (V2)
N N
CA CA
C C
CB CB
CG CG
CD1 CD1
CD2 CD2
CE1 CE1
CE2 CE2
CZ CZ
O O
OXT OXT
S1 S1
O2 O2
O3 O3
N1 N1
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
H H
HA HA
HB1C HB1C
HB2C HB2C
HD1 HD1
HD2 HD2
HE1 HE1
HE2 HE2
HZ HZ
H111 H111
H112 H112
H113 H113
H121 H121
H122 H122
H123 H123
H2 H2
H3 H3
H4 H4
H7 H7
H8 H8
H9 H9
HXT HXT