Atom Nomenclature for PO1

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 PO1

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
O2 O2
S1 S1
O1 O1
N1 N1
O3 O3
C3 C3
C4 C4
C5 C5
C6 C6
O4 O4
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
O5 O5
S2 S2
O6 O6
O7 O7
N2 N2
HN11 1HN1
HN12 2HN1
H3 H3
H6 H6
H71 1H7
H72 2H7
H73 3H7
H8 H8
H9 H9
H101 1H10
H102 2H10
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H131 1H13
H132 2H13
H15 H15
H161 1H16
H162 2H16
H163 3H16
H17 H17
H181 1H18
H182 2H18
H191 1H19
H192 2H19
HN21 1HN2
HN22 2HN2