Atom Nomenclature for IHP

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 IHP

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
O11 O11
P1 P1
O21 O21
O31 O31
O41 O41
O12 O12
P2 P2
O22 O22
O32 O32
O42 O42
O13 O13
P3 P3
O23 O23
O33 O33
O43 O43
O14 O14
P4 P4
O24 O24
O34 O34
O44 O44
O15 O15
P5 P5
O25 O25
O35 O35
O45 O45
O16 O16
P6 P6
O26 O26
O36 O36
O46 O46
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H31 H31
H41 H41
H32 H32
H42 H42
H33 H33
H43 H43
H34 H34
H44 H44
H35 H35
H45 H45
H36 H36
H46 H46