Atom Nomenclature for P4C

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 P4C

Atom Name (V3) Atom Name (V2)
O1 O1
C2 C2
C3 C3
O4 O4
C5 C5
C6 C6
O7 O7
C8 C8
C9 C9
O10 O10
C11 C11
C12 C12
O13 O13
C14 C14
C15 C15
O16 O16
C17 C17
C18 C18
O19 O19
C20 C20
C21 C21
O22 O22
HO1 HO1
H21A 1H2
H22 2H2
H31 1H3
H32 2H3
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H81 1H8
H82 2H8
H91 1H9
H92 2H9
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H141 1H14
H142 2H14
H151 1H15
H152 2H15
H171 1H17
H172 2H17
H181 1H18
H182 2H18
H201 1H20
H202 2H20
H21 H21