Atom Nomenclature for 5A3

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 5A3

Atom Name (V3) Atom Name (V2)
O31 O1
C2 C1
C1 C2
C4 C3
C5 C4
C6 C5
C3 C6
O11 O2
O75 O3
PB5 P1
O55 O4
O65 O5
CB5 C7
PA5 P2
O25 O6
O35 O7
O15 O8
O16 O9
PA6 P3
O46 O10
O36 O11
O26 O12
PA1 P4
O41 O13
O21 O14
O12 O15
PA2 P5
O42 O16
O22 O17
O32 O18
O13 O19
PA3 P6
O43 O20
O33 O21
O23 O22
O14 O23
PA4 P7
O24 O24
O44 O25
O34 O26
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21