Atom Nomenclature for MDE

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 MDE

Atom Name (V3) Atom Name (V2)
P1A AP1
O1A AO1
O2A AO2
O5B AO5*
C5B AC5*
C4B AC4*
O4B AO4*
C1B AC1*
N9A AN9
C4A AC4
N3A AN3
C2A AC2
N1A AN1
C6A AC6
N6A AN6
C5A AC5
N7A AN7
C8A AC8
C2B AC2*
O2B AO2*
C3B AC3*
O3B AO3*
P3B AP3*
O7B AO7*
O8B AO8*
O9B AO9*
O3A AO3
P2A AP2
O4A AO4
O5A AO5
O6A AO6
CCP PC12
CBP PC11
CDP PC13
CEP PC14
CAP PC10
OAP PO10
C9P PC9
O9P PO9
N8P PN8
C7P PC7
C6P PC6
C5P PC5
O5P PO5
N4P PN4
C3P PC3
C2P PC2
S1P PS1
C1' C1*
O1' O1*
C2' C2*
C3' C3*
C4' C4*
C5' C5*
SG SG
CB CB
CB1 CB1
OB1 OB1
C6' C6*
C7' C7*
C8' C8*
C9' C9*
C10 C10
HO2 HO2
H5'1 1H5*
H5'2 2H5*
H4' H4*
H1' H1*
H4 H4
HN61 1HN6
HN62 2HN6
HN7 HN7
H8 H8
H1 H1
H2 H2
H3 H3
H7' H7*
H8' H8*
HO5 HO5
H121 1H12
H122 2H12
H131 1H13
H132 2H13
H133 3H13
H141 1H14
H142 2H14
H143 3H14
H9 H9
HO9 HO9
HN8 HN8
H71 1H7
H72 2H7
H61 1H6
H62 2H6
HN4 HN4
H31 1H3
H32 2H3
H21 1H2
H22 2H2
H2' H2*
H3' H3*
H4'1 1H4*
H4'2 2H4*
H5' H5*
HB1 1HB
HB2 2HB
HB11 HB1
H6'1 1H6*
H6'2 2H6*
H7'1 1H7*
H7'2 2H7*
H8'1 1H8*
H8'2 2H8*
H9'1 1H9*
H9'2 2H9*
H101 1H10
H102 2H10
H103 3H10