Atom Nomenclature for M54

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 M54

Atom Name (V3) Atom Name (V2)
C C
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
N N
C12 C12
O O
C13 C13
C14 C14
N15 N15
N16 N16
C17 C17
C18 C18
C19 C19
C20 C20
N21 N21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
O28 O28
H1 H1
H2 H2
H3 H3
H7 H7
H11 H11
HN HN
H14 H14
HN15 HN15
H17 H17
H181 1H18
H182 2H18
H191 1H19
H192 2H19
H201 1H20
H202 2H20
H211 1H21
H212 2H21
H23 H23
H24 H24
H26 H26
H27 H27
HO28 HO28