Atom Nomenclature for 023

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 023

Atom Name (V3) Atom Name (V2)
C25 C25
N18 N18
C14 C14
O19 O19
C10 C10
C15 C15
C22 C22
C21 C21
C20 C20
N5 N5
C2 C2
O6 O6
C1 C1
C3 C3
C8 C8
N7 N7
O12 O12
C11 C11
O16 O16
C4 C4
C9 C9
C13 C13
C17 C17
C23 C23
C26 C26
C28 C28
C27 C27
C24 C24
H251 H251
H252 H252
H253 H253
H18 H18
H10 H10
H5 H5
H221 H221
H222 H222
H223 H223
H211 H211
H212 H212
H213 H213
H201 H201
H202 H202
H203 H203
H1 H1
H3 H3
H41C H41C
H42C H42C
H81C H81C
H82C H82C
H83C H83C
H12 H12
H11 H11
H91C H91C
H92C H92C
H131 H131
H132 H132
H23 H23
H24 H24
H26 H26
H28 H28
H27 H27