Atom Nomenclature for PP2

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 PP2

Atom Name (V3) Atom Name (V2)
C1 C1
N2 N2
C3 C3
N4 N4
C5 C5
C6 C6
C8 C8
N9 N9
N10 N10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C22 C22
C23 C23
C24 C24
C25 C25
N25 N25
CL CL
H11 H11
H1 H1
H12 H12
H13 H13
H15 H15
H16 H16
H31 H31
H32 H32
H33 H33
H41 H41
H42 H42
H43 H43
H51 H51
H52 H52
H53 H53
H2 H2
H3 H3