Atom Nomenclature for 126

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 126

Atom Name (V3) Atom Name (V2)
P P
OP1 O1P
OP2 O2P
OP3 O3P
O5' O5*
C5' C5*
C4' C4*
O4' O4*
C3' C3*
O3' O3*
C2' C2*
O2' O2*
C1' C1*
N1 N1
C2 C2
O2 O2
N3 N3
C4 C4
O4 O4
C5 C5
C5M C5M
C6 C6
CA' CA*
CB' CB*
OC' OC*
CD' CD*
CE' CE*
OF' OF*
CG' CG*
CH' CH*
OI' OI*
CK' CK*
HOP2 2HOP
HOP3 3HOP
H5' 1H5*
H5'' 2H5*
H4' H4*
H3' H3*
HO3' H3T
H2' H2*
H1' H1*
H3 H3
H71 1H5M
H72 2H5M
H73 3H5M
H6 H6
HA'1 1HA*
HA'2 2HA*
HB'1 1HB*
HB'2 2HB*
HD'1 1HD*
HD'2 2HD*
HE'1 1HE*
HE'2 2HE*
HG'1 1HG*
HG'2 2HG*
HH'1 1HH*
HH'2 2HH*
HK'1 1HK*
HK'2 2HK*
HK'3 3HK*