Atom Nomenclature for R24

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 R24

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C8 C8
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
N38 N38
O40 O40
O39 O39
N7 N7
N9 N9
C17 C17
C16 C16
N18 N18
C19 C19
O20 O20
N21 N21
C22 C22
C26 C26
C25 C25
C27 C27
C29 C29
C30 C30
C28 C28
N24 N24
N23 N23
C31 C31
C32 C32
C33 C33
C34 C34
C37 C37
C35 C35
C36 C36
H2 H2
H3 H3
H4 H4
H10 H10
H11 H11
H13 H13
H15 H15
HN9 HN9
H17 H17
H16 H16
HN18 HN18
HN21 HN21
H26 H26
H29 H29
H29A H29A
H29B H29B
H30 H30
H30A H30A
H30B H30B
H28 H28
H28A H28A
H28B H28B
H32 H32
H33 H33
H37 H37
H37A H37A
H37B H37B
H35 H35
H36 H36