Atom Nomenclature for R64

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 R64

Atom Name (V3) Atom Name (V2)
O1 O1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
O30 O30
C31 C31
N32 N32
C30 C30
C33 C33
C34 C34
N35 N35
C11 C11
O12 O12
C13 C13
C14 C14
C15 C15
N16 N16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
N22 N22
C23 C23
HC6 HC6
HC7 HC7
HC8 HC8
H301 1H30
H302 2H30
H303 3H30
HC33 HC33
HC34 HC34
H111 1H11
H112 2H11
H113 3H11
H131 1H13
H132 2H13
H141 1H14
H142 2H14
H151 1H15
H152 2H15
HN16 HN16
H171 1H17
H172 2H17
HC19 HC19
HC20 HC20
HC21 HC21
HC23 HC23