Atom Nomenclature for F21

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 F21

Atom Name (V3) Atom Name (V2)
C12 C12
C13 C13
S2 S2
C15 C15
C14 C14
N1 N1
S1 S1
O2 O2
O1 O1
C7 C7
C8 C8
C9 C9
C1 C1
N2 N2
C3 C3
C11 C11
F1 F1
C4 C4
C10 C10
C5 C5
C6 C6
H121 1H12
H122 2H12
H131 1H13
H132 2H13
H151 1H15
H152 2H15
H141 1H14
H142 2H14
H8 H8
H11 1H1
H12 2H1
HN2 HN2
H3 H3
H111 1H11
H112 2H11
H41 1H4
H42 2H4
H5 H5
H6 H6