Atom Nomenclature for E6C

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 E6C

Atom Name (V3) Atom Name (V2)
O1 O1
C2 C2
C3 C3
C4 C4
O5 O5
N6 N6
C7 C7
C8 C8
O9 O9
N10 N10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
O17 O17
O18 O18
C19 C19
C20 C20
C21 C21
C22 C22
HO1 HO1
H21 1H2
H22 2H2
H3 H3
HN6 HN6
H7 H7
HN1 HN1
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H13 H13
H141 1H14
H142 2H14
H143 3H14
H151 1H15
H152 2H15
H153 3H15
HO8 HO8
H191 1H19
H192 2H19
H20 H20
H211 1H21
H212 2H21
H213 3H21
H221 1H22
H222 2H22
H223 3H22