Atom Nomenclature for EUI

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 EUI

Atom Name (V3) Atom Name (V2)
O20 O20
C18 C18
C15 C15
C14 C14
C13 C13
C12 C12
F17 F17
C11 C11
F16 F16
C10 C10
N9 N9
C5 C5
C4 C4
C3 C3
C2 C2
I8 I8
C6 C6
F7 F7
C1 C1
N19 N19
C23 C23
C22 C22
C21 C21
O24 O24
C25 C25
C30 C30
C29 C29
C28 C28
C27 C27
N26 N26
H14 H14
H13 H13
H9 H9
H4 H4
H3 H3
H1 H1
H231 H231
H232 H232
H211 H211
H212 H212
H24 H24
H25 H25
H301 H301
H302 H302
H26 H26
H291 H291
H292 H292
H281 H281
H282 H282
H271 H271
H272 H272