Atom Nomenclature for SPM

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 SPM

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C4 C4
N5 N5
C6 C6
C7 C7
C8 C8
C9 C9
N10 N10
C11 C11
C12 C12
C13 C13
N14 N14
HN11 1HN1
HN12 2HN1
H21 1H2
H22 2H2
H31 1H3
H32 2H3
H41 1H4
H42 2H4
HN5 HN5
H61 1H6
H62 2H6
H71 1H7
H72 2H7
H81 1H8
H82 2H8
H91 1H9
H92 2H9
HN0 HN0
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H131 1H13
H132 2H13
HN41 1HN4
HN42 2HN4