Atom Nomenclature for SAJ

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 SAJ

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
N3 N3
C4 C4
C5 C5
C6 C6
O2 O2
O4 O4
C1C C1C
C2C C2C
O2C O2C
C3C C3C
C4C C4C
O4C O4C
O3C O3C
C5C C5C
O5C O5C
PA PA
O1A O1A
O2A O2A
O3A O3A
PB PB
O1B O1B
O2B O2B
O1' O1'
C1' C1'
C2' C2'
N2' N2'
C7' C7'
O7' O7'
C8' C8'
C3' C3'
O3' O3'
C4' C4'
O4' O4'
C5' C5'
O5' O5'
C6' C6'
O6A O6A
O6B O6B
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
H22 H22
H23 H23
H24 H24
H25 H25