Atom Nomenclature for PFA

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 PFA

Atom Name (V3) Atom Name (V2)
O9 O9
C14 C14
N6 N6
C10 C10
O8 O8
N5 N5
N3 N3
C17 C17
C4 C4
C5 C5
C6 C6
C7 C7
C3 C3
C2 C2
C19 C19
C1 C1
O20 O20
C21 C21
C31 C31
C22 C22
C24 C24
C25 C25
C8 C8
C9 C9
C26 C26
C29 C29
O27 O27
HN6 HN6
H17C CH17
HC5 HC5
HC71 1HC7
HC72 2HC7
HC73 3HC7
HC3 HC3
H191 1H19
H192 2H19
H193 3H19
H31C CH31
H22C CH22
H25C CH25
HC81 1HC8
HC82 2HC8
HC83 3HC8
HC91 1HC9
HC92 2HC9
HC93 3HC9
H29C CH29
H27O OH27