Atom Nomenclature for CMC

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 CMC

Atom Name (V3) Atom Name (V2)
N1A N1A
C2A C2A
N3A N3A
C4A C4A
C5A C5A
C6A C6A
N6A N6A
N7A N7A
C8A C8A
N9A N9A
C1B C1'A
C2B C2'A
O2B O2'A
C3B C3'A
O3B O3'A
P3B P3'A
O7A O7A
O8A O8A
O9A O9A
C4B C4'A
O4B O4'A
C5B C5'A
O5B O5'A
P1A P1A
O1A O1A
O2A O2A
O3A O3A
P2A P2A
O4A O4A
O5A O5A
O6A O6A
CBP C11P
CCP C12P
CDP C13P
CEP C14P
CAP C10P
OAP O10P
C9P C9P
O9P O9P
N8P N8P
C7P C7P
C6P C6P
C5P C5P
O5P O5P
N4P N4P
C3P C3P
C2P C2P
S1P S1P
C1 C1
C2 C2
O21 O21
O22 O22
H2A H2A
H61A H61A
H62A H62A
H8A H8A
H1B H1'A
H2B H2'A
HO2A HO2A
H3B H3'A
HOA8 HOA8
HOA9 HOA9
H4B H4'A
H51A H51A
H52A H52A
HOA2 HOA2
HOA5 HOA5
H121 H121
H122 H122
H131 H131
H132 H132
H133 H133
H141 H141
H142 H142
H143 H143
H10 H10
HO1 HO1
HN8 HN8
H71 H71
H72 H72
H61 H61
H62 H62
HN4 HN4
H31 H31
H32 H32
H21 H21
H22 H22
H11 H11
H12 H12
HO22 HO22