Atom Nomenclature for GCG

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 GCG

Atom Name (V3) Atom Name (V2)
C1 C1
CA1 CA1
O11 O11
O21 O21
CB1 CB1
N1 N1
CG1 CG1
CD1 CD1
OD1 OD1
N2 N2
CA2 CA2
C2 C2
O2 O2
CB2 CB2
SG2 SG2
N3 N3
CA3 CA3
C3 C3
O3 O3
N1S N1S
C2S C2S
C3S C3S
C4S C4S
C5S C5S
C7S C7S
N6S N6S
C8S C8S
C9S C9S
N11 N10S
C5 C5
N5 N5
CA5 CA5
O5 O5
C6 C6
N6 N6
CA6 CA6
O6 O6
CB6 CB6
SG6 SG6
CD7 CD7
C7 C7
CA7 CA7
O17 O17
O27 O27
CB7 CB7
N7 N7
CG7 CG7
OD7 OD7
HA1 HA1
HO11 HO11
HB11 1HB1
HB12 2HB1
HN11 1HN1
HN12 2HN1
HG11 1HG1
HG12 2HG1
H2 H2
HA2 HA2
HB21 1HB2
HB22 2HB2
HG2 HG2
H3 H3
HA31 1HA3
HA32 2HA3
HNS1 1HNS
H2S1 1H2S
H2S2 2H2S
H3S1 1H3S
H3S2 2H3S
H4S1 1H4S
H4S2 2H4S
H5S1 1H5S
H5S2 2H5S
H7S1 1H7S
H7S2 2H7S
HNS6 6HNS
H8S1 1H8S
H8S2 2H8S
H9S1 1H9S
H9S2 2H9S
H10S H10S
H5 H5
HA51 1HA5
HA52 2HA5
H6 H6
HA6 HA6
HB61 1HB6
HB62 2HB6
HG6 HG6
HA7 HA7
HO17 HO17
HB71 1HB7
HB72 2HB7
HN71 1HN7
HN72 2HN7
HG71 1HG7
HG72 2HG7