Atom Nomenclature for TR1

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 TR1

Atom Name (V3) Atom Name (V2)
N N
CA CA
C C
O O
C41 C41
C42 C42
C43 C43
C44 C44
C45 C45
C46 C46
C47 C47
C48 C48
C49 C49
C50 C50
C51 C51
C52 C52
CM2 CM2
CB CB
SG SG
N2 N2
CA2 CA2
C2 C2
O2 O2
N3 N3
CA3 CA3
CB3 CB3
CG1 CG1
CG2 CG2
C3 C3
O3 O3
OE OE
CM3 CM3
HN HN
HA HA
H42 H42
H43 H43
H44 H44
H45 H45
H46 H46
H48 H48
H49 H49
H50 H50
H51 H51
HM21 HM21
HM22 HM22
HB1 HB1
HB2 HB2
HSG HSG
HN2 HN2
HA21 HA21
HA22 HA22
HN3 HN3
HA3 HA3
HB3 HB3
HG11 HG11
HG12 HG12
HG13 HG13
HG21 HG21
HG22 HG22
HG23 HG23
HM31 HM31
HM32 HM32
HM33 HM33