Atom Nomenclature for SRM

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 SRM

Atom Name (V3) Atom Name (V2)
FE FE
CHA CHA
CHB CHB
CHC CHC
CHD CHD
NA N A
C1A C1A
C2A C2A
CMA CMA
CDA CDA
CEA CEA
O3A O3A
O4A O4A
C3A C3A
CAA CAA
CBA CBA
CCA CCA
O1A O1A
O2A O2A
C4A C4A
NB N B
C1B C1B
C2B C2B
CMB CMB
CDB CDB
CEB CEB
O3B O3B
O4B O4B
C3B C3B
CAB CAB
CBB CBB
CCB CCB
O1B O1B
O2B O2B
C4B C4B
NC N C
C1C C1C
C2C C2C
CDC CDC
CEC CEC
O3C O3C
O4C O4C
C3C C3C
CAC CAC
CBC CBC
CCC CCC
O1C O1C
O2C O2C
C4C C4C
ND N D
C1D C1D
C2D C2D
CAD CAD
CBD CBD
CCD CCD
O1D O1D
O2D O2D
C3D C3D
CDD CDD
CED CED
O3D O3D
O4D O4D
C4D C4D
HHA HHA
HHB HHB
HHC HHC
HHD HHD
HMA1 HMA1
HMA2 HMA2
HMA3 HMA3
HDA1 HDA1
HDA2 HDA2
H4A H4A
HAA1 HAA1
HAA2 HAA2
HBA1 HBA1
HBA2 HBA2
H2A H2A
HMB1 HMB1
HMB2 HMB2
HMB3 HMB3
HDB1 HDB1
HDB2 HDB2
H4B H4B
HAB1 HAB1
HAB2 HAB2
HBB1 HBB1
HBB2 HBB2
H2B H2B
HCD1 HCD1
HCD2 HCD2
H4C H4C
HAC1 HAC1
HAC2 HAC2
HBC1 HBC1
HBC2 HBC2
H2C H2C
HAD1 HAD1
HAD2 HAD2
HBD1 HBD1
HBD2 HBD2
H2D H2D
HDD1 HDD1
HDD2 HDD2
H4D H4D
H1 H1
H2 H2