Atom Nomenclature for MGD

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 MGD

Atom Name (V3) Atom Name (V2)
PB PB
O1B O1B
O2B O2B
O3B O3B
O3A O3A
PA PA
O1A O1A
O2A O2A
O5' O5'
C5' C5'
C4' C4'
O4' O4'
C3' C3'
O3' O3'
C2' C2'
O2' O2'
C1' C1'
N9 N9
C8 C8
N7 N7
C5 C5
C6 C6
O6 O6
N1 N1
C2 C2
N2 N2
N3 N3
C4 C4
C10 C10
C11 C11
O11 O11
C12 C12
S12 S12
C13 C13
S13 S13
C14 C14
N15 N15
C16 C16
C17 C17
O17 O17
N18 N18
C19 C19
N19 N19
N20 N20
C21 C21
N22 N22
C23 C23
HOB2 2HOB
HOA2 2HOA
H5'1 1H5'
H5'2 2H5'
H4' H4'
H3' H3'
HO3' 'HO3
H2' H2'
HO2' 'HO2
H1' H1'
H8 H8
HN1 HN1
HN21 1HN2
HN22 2HN2
H101 1H10
H102 2H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H18 H18
H191 1H19
H192 2H19
H22 H22
H23 H23