Atom Nomenclature for CCI

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 CCI

Atom Name (V3) Atom Name (V2)
C1D C1D
C2D C2D
C3D C3D
C4D C4D
C5D C5D
C6D C6D
OCD OCD
O2D O2D
O3D O3D
O4D O4D
OD OD
C7D C7D
C3C C3C
C4C C4C
C5C C5C
C6C C6C
C1C C1C
C2C C2C
I I
O5C O5C
C8C C8C
O6C O6C
C9C C9C
C7C C7C
CBC CBC
OBC OBC
SBC SBC
C1B C1B
C2B C2B
C3B C3B
C4B C4B
C5B C5B
C6B C6B
OAB OAB
O3B O3B
OB OB
C1A C1A
C2A C2A
C3A C3A
C4A C4A
C5A C5A
C6A C6A
ORA ORA
OEA OEA
O3A O3A
NAB NAB
OA OA
CAN CAN
C1E C1E
C2E C2E
C3E C3E
C4E C4E
C5E C5E
O3E O3E
C6E C6E
N4E N4E
C7E C7E
C8E C8E
OE OE
H1D H1D
H2D H2D
H3D H3D
H4D H4D
H5D H5D
H6D1 H6D1
H6D2 H6D2
H6D3 H6D3
HOD2 HOD2
HOD4 HOD4
H7D1 H7D1
H7D2 H7D2
H7D3 H7D3
H8C1 H8C1
H8C2 H8C2
H8C3 H8C3
H9C1 H9C1
H9C2 H9C2
H9C3 H9C3
H7C1 H7C1
H7C2 H7C2
H7C3 H7C3
H1B H1B
H2B1 H2B1
H2B2 H2B2
H3B H3B
H4B H4B
H5B H5B
H6B1 H6B1
H6B2 H6B2
H6B3 H6B3
HOB3 HOB3
H1A H1A
H2A H2A
H3A H3A
H4A H4A
H5A H5A
H6A1 H6A1
H6A2 H6A2
H6A3 H6A3
HOA3 HOA3
HAB HAB
HAN1 HAN1
HAN2 HAN2
HAN3 HAN3
H1E H1E
H2E1 H2E1
H2E2 H2E2
H3E H3E
H4E H4E
H5E1 H5E1
H5E2 H5E2
H6E1 H6E1
H6E2 H6E2
H6E3 H6E3
HNE2 HNE2
H7E1 H7E1
H7E2 H7E2
H8E1 H8E1
H8E2 H8E2
H8E3 H8E3