Atom Nomenclature for CN5

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 CN5

Atom Name (V3) Atom Name (V2)
P P
O11 O11
O12 O12
O13 O13
O14 O14
C1 C1
C2 C2
C3 C3
O31 O31
O32 O32
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
C38 C38
C39 C39
C3A C3A
C3B C3B
C3C C3C
C3D C3D
C3E C3E
C3F C3F
P' P'
O1' O1'
O2' O2'
O3' O3'
O4' O4'
C1' C1'
C2' C2'
C3' C3'
O41 O41
O42 O42
C41 C41
C42 C42
CA CA
CB CB
OA OA
CC CC
HO12 HO12
H1 H1
H1A H1A
H2 H2
H2A H2A
H3 H3
H3A H3A
H32 H32
H32A H32A
H33 H33
H33A H33A
H34 H34
H34A H34A
H35 H35
H35A H35A
H36 H36
H36A H36A
H37 H37
H37A H37A
H38 H38
H38A H38A
H39 H39
H39A H39A
H3AA H3AA
H3AB H3AB
H3B H3B
H3BA H3BA
H3C H3C
H3CA H3CA
H3D H3D
H3DA H3DA
H3E H3E
H3EA H3EA
H3F H3F
H3FA H3FA
H3FB H3FB
HO4' HO4'
H1' H1'
H1'A H1'A
H2' H2'
H2'A H2'A
H3' H3'
H3'A H3'A
H42 H42
H42A H42A
H42B H42B
HA HA
HAA HAA
HB HB
HOA HOA
HC HC
HCA HCA