Atom Nomenclature for LIA

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 LIA

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
N7 N7
C8 C8
N9 N9
C10 C10
C11 C11
C12 C12
N13 N13
C14 C14
O15 O15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
O22 O22
C23 C23
F24 F24
F25 F25
N26 N26
S27 S27
C28 C28
O29 O29
O30 O30
H21 1H2
H22 2H2
H31 1H3
H32 2H3
H4 H4
H51 1H5
H52 2H5
H61 1H6
H62 2H6
HN7 HN7
H10 H10
H19 H19
H20 H20
H231 1H23
H232 2H23
H233 3H23
H261 1H26
H262 2H26
H281 1H28
H282 2H28
H283 3H28