Atom Nomenclature for LSS

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 LSS

Atom Name (V3) Atom Name (V2)
C1 C1
N1 N1
O1 O1
S1 S1
C2 C2
N2 N2
O2 O2
N3 N3
O3 O3
C4 C4
N4 N4
O4 O4
C5 C5
O5 O5
C6 C6
N6 N6
C7 C7
N7 N7
C8 C8
C9 C9
N9 N9
CA CA
C10 C10
C11 C11
O1A O1A
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
O2A O2A
H2 H2
HN2 HN2
HO2 HO2
HO3 HO3
HN4 HN4
HN4A HN4A
HN6 HN6
HN6A HN6A
H7 H7
H8 H8
H9 H9
H9A H9A
HA HA
H10 H10
H10A H10A
H10B H10B
H11 H11
H11A H11A
H11B H11B
H21 H21
H22 H22
H23 H23
H24 H24
H25 H25
H25A H25A