Atom Nomenclature for FDE

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 FDE

Atom Name (V3) Atom Name (V2)
CHA CHA
C1A C1A
C2A C2A
CAA CAA
CBA CBA
CGA CGA
O1A O1A
O2A O2A
C3A C3A
CMA CMA
C4A C4A
NA N A
CHB CHB
C1B C1B
C2B C2B
C3B C3B
CME CME
C4B C4B
NB N B
CHC CHC
C1C C1C
C2C C2C
C3C C3C
CMF CMF
C4C C4C
NC N C
CHD CHD
C1D C1D
C2D C2D
CMD CMD
C3D C3D
CAD CAD
CBD CBD
CGD CGD
O1D O1D
O2D O2D
C4D C4D
ND N D
FE FE
HHA HHA
HAA1 HAA1
HAA2 HAA2
HBA1 HBA1
HBA2 HBA2
H1A H1A
HMA1 HMA1
HMA2 HMA2
HMA3 HMA3
HHB HHB
H2B H2B
HME1 HME1
HME2 HME2
HME3 HME3
HHC HHC
H2C H2C
HMF1 HMF1
HMF2 HMF2
HMF3 HMF3
HHD HHD
HMD1 HMD1
HMD2 HMD2
HMD3 HMD3
HAD1 HAD1
HAD2 HAD2
HBD1 HBD1
HBD2 HBD2
H1D H1D