Atom Nomenclature for D31

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 D31

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C6 C6
C7 C7
N8 N8
C9 C9
C10 C10
C20 C20
C21 C21
N24 N24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
C32 C32
C33 C33
N34 N34
C35 C35
C36 C36
C37 C37
C38 C38
C39 C39
C40 C40
C41 C41
O53 O53
O54 O54
N55 N55
HN11 1HN1
HN12 2HN1
H21 1H2
H22 2H2
H3 H3
H61 1H6
H62 2H6
H71 1H7
H72 2H7
H91 1H9
H92 2H9
H101 1H10
H102 2H10
H201 1H20
H202 2H20
H24 H24
H26 H26
H27 H27
H28 H28
H34 H34
H36 H36
H371 1H37
H372 2H37
H381 1H38
H382 2H38
H391 1H39
H392 2H39
H401 1H40
H402 2H40
H411 1H41
H412 2H41