Atom Nomenclature for 00Q

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 00Q

Atom Name (V3) Atom Name (V2)
N N
CA CA
C C
O O
CB CB
CG CG
CD1 CD1
CD2 CD2
CE1 CE1
CE2 CE2
CZ CZ
NX NX
CAX CAX
CX CX
OX OX
CBX CBX
CGX CGX
CDX CDX
CY CY
NY NY
OY OY
CAY CAY
CBY CBY
CDY CDY
NEY NEY
CGY CGY
NH1 NH1
NH2 NH2
CZY CZY
S1 S1
N11 N11
C17 C17
C21 C21
C31 C31
C41 C41
C51 C51
C61 C61
C71 C71
HN HN
HNA HNA
HA HA
HB HB
HBA HBA
HD1 HD1
HD2 HD2
HE1 HE1
HE2 HE2
HZ HZ
HAX HAX
HBX HBX
HBXA HBXA
HGX HGX
H17 H17
HDX HDX
H12 H12
HNH1 HNH1
HY HY
HNY HNY
HOY HOY
HAY HAY
HBY HBY
HBYA HBYA
HDY HDY
HDYA HDYA
HNEY HNEY
HGY HGY
HGYA HGYA
HNH2 HNH2
HNHA HNHA
H31 H31
H41 H41
H51 H51
H61 H61