Atom Nomenclature for 3MS

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 3MS

Atom Name (V3) Atom Name (V2)
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C10 C10
C13 C13
C15 C15
C17 C17
C20 C20
O30 O30
S33 S33
O29 O29
N25 N25
C3 C3
C9 C9
S32 S32
O27 O27
O28 O28
N23 N23
N21 N21
C2 C2
C12 C12
C11 C11
O31 O31
C14 C14
O26 O26
N24 N24
N22 N22
C1 C1
C19 C19
C18 C18
C16 C16
H4 H4
H5 H5
H6 H6
H15 H15
H15A H15A
H15B H15B
H17 H17
H17A H17A
H17B H17B
H20 H20
HN25 HN25
H3 H3
HN23 HN23
H2 H2
HO31 HO31
H1 H1
H19 H19
H19A H19A
H18 H18
H18A H18A
H16 H16
H16A H16A
H16B H16B