Atom Nomenclature for AS6

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 AS6

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
N1 N1
C4 C4
C5 C5
C6 C6
N2 N2
C7 C7
N3 N3
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
S1 S1
O1 O1
O2 O2
C14 C14
N4 N4
C15 C15
C16 C16
O3 O3
C17 C17
C18 C18
N5 N5
C19 C19
C20 C20
C21 C21
C22 C22
O4 O4
C23 C23
C24 C24
C25 C25
C26 C26
H11C H11C
H12C H12C
H13C H13C
H2 H2
H31C H31C
H32C H32C
H33C H33C
H5 H5
H6 H6
H3 H3
H9 H9
H13 H13
H11 H11
H141 H141
H142 H142
H143 H143
H151 H151
H152 H152
H181 H181
H182 H182
H161 H161
H162 H162
H171 H171
H172 H172
H20 H20
H221 H221
H222 H222
H23 H23
H4 H4
H24 H24
H261 H261
H262 H262
H263 H263