Atom Nomenclature for PYL

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 PYL

Atom Name (V3) Atom Name (V2)
CB2 CB2
CG2 CG2
CD2 CD2
CE2 CE2
N2 N2
CA2 CA2
C2 C2
O2 O2
NZ NZ
CE CE
CD CD
CG CG
CB CB
CA CA
C C
OXT OXT
O O
N N
HXT HXT
HA HA
H H
H2 HN2
HB3 HB3
HB2 HB2
HG3 HG3
HG2 HG2
HD3 HD3
HD2 HD2
HE3 HE3
HE2 HE2
HZ HZ
HA2 HA2
HE22 HE22
HD32 HD32
HD22 HD22
HG22 HG22
HB12 HB12
HB22 HB22
HB32 HB32