Atom Nomenclature for CDH

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 CDH

Atom Name (V3) Atom Name (V2)
O43 O43
C31 C31
O42 O42
C30 C30
C32 C32
C37 C37
C33 C33
N29 N29
C13 C13
O18 O18
C12 C12
C16 C16
S S
N30 N30
C25 C25
O25 O25
C24 C24
C23 C23
C22 C22
C21 C21
N31 N31
C20 C20
O20 O20
O21 O21
H42 H42
H30 H30
H371 1H37
H372 2H37
H331 1H33
H332 2H33
H333 3H33
H29 H29
H121 1H12
H161 1H16
H162 2H16
HS HS
H30N NH30
H241 1H24
H242 2H24
H231 1H23
H232 2H23
H221 1H22
H222 2H22
H211 1H21
H311 1H31
H312 2H31
H21 H21