Atom Nomenclature for 5X

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 5X

Atom Name (V3) Atom Name (V2)
S19 S19
O20 O20
O21 O21
N22 N22
C24 C24
C25 C25
C26 C26
C27 C27
C29 C29
C30 C30
C1 C1
C2 C2
N1 N1
C9 C9
C14 C14
C7 C7
S1 S1
S2 S2
O1 O1
C3 C3
C4 C4
C5 C5
C6 C6
C8 C8
C10 C10
C11 C11
C13 C13
H22 H22
H25 H25
H26 H26
H27 H27
H29 H29
H30 H30
H11A 1H1
H12 2H1
H14 H14
H3 H3
H41 1H4
H42 2H4
H43 3H4
H6 H6
H8 H8
H10 H10
H11 H11
H13 H13