Atom Nomenclature for MER

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 MER

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
O6 O6
C7 C7
O8 O8
C9 C9
N10 N10
C11 C11
O12 O12
O13 O13
S14 S14
C15 C15
C16 C16
C17 C17
C18 C18
N19 N19
C20 C20
C21 C21
C22 C22
N23 N23
O24 O24
C25 C25
C26 C26
H1 H1
H3 H3
H4 H4
H7 H7
HO8 HO8
H9 H9
H9A H9A
H9B H9B
HN10 HN10
HO12 HO12
H15 H15
H16 H16
H16A H16A
H17 H17
H18 H18
HN19 HN19
H20 H20
H20A H20A
H20B H20B
H21 H21
H21A H21A
H25 H25
H25A H25A
H25B H25B
H26 H26
H26A H26A
H26B H26B