Atom Nomenclature for SXC

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 SXC

Atom Name (V3) Atom Name (V2)
BR1 BR1
PD1 PD1
S1 S1
S2 S2
P1 P1
O1 O1
O2 O2
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C9 C9
C10 C10
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
O3 O3
H3 H3
H5 H5
H17 H17
H27 H27
H19 H19
H29 H29
H39 H39
H110 H110
H210 H210
H112 H112
H212 H212
H312 H312
H113 H113
H213 H213
H114 H114
H214 H214
H115 H115
H215 H215
H116 H116
H216 H216
H117 H117
H217 H217
H317 H317
C161 C161
C171 C171
C18 C18
C19 C19
C20 C20
C21 C21
N1 N1
O4 O4
O5 O5
H24 H24
H25 H25
H26 H26
H271 H271