Atom Nomenclature for CY0

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 CY0

Atom Name (V3) Atom Name (V2)
CAI CAI
CAF CAF
CAE CAE
CAG CAG
CAJ CAJ
CAX CAX
NAT NAT
C6 C6
C5 C5
CAM CAM
N1 N1
C2 C2
N3 N3
C4 C4
CAL CAL
CAK CAK
CAY CAY
NAS NAS
CAW CAW
OAC OAC
CAO CAO
CAN CAN
SAU SAU
CB CB
CA CA
C C
O O
N N
OXT OXT
HAI HAI
HAF HAF
HAE HAE
HAG HAG
HAJ HAJ
HAT HAT
HAM HAM
H2 H2
HAL HAL
HAK HAK
HAS HAS
HAO1 1HAO
HAO2 2HAO
HAN1 1HAN
HAN2 2HAN
HBC1 1HBC
HBC2 2HBC
HA HA
HN1 1HN
HN2 2HN
HOT HOT