Atom Nomenclature for GUI

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 GUI

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
N3 N3
C4 C4
N5 N5
C6 C6
N7 N7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
O14 O14
C15 C15
N16 N16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
N22 N22
C23 C23
C24 C24
N25 N25
C26 C26
C27 C27
C28 C28
N29 N29
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
S36 S36
C37 C37
C38 C38
C39 C39
O40 O40
O41 O41
CL CL
H6 H6
H29 H29
H7 H7
H9 H9
H10 H10
H12 H12
H151 H151
H152 H152
H153 H153
H171 H171
H172 H172
H211 H211
H212 H212
H181 H181
H182 H182
H19 H19
H201 H201
H202 H202
H231 H231
H232 H232
H271 H271
H272 H272
H241 H241
H242 H242
H261 H261
H262 H262
H281 H281
H282 H282
H283 H283
H35 H35
H32 H32
H33 H33
H34 H34
H37 H37
H381 H381
H382 H382
H383 H383
H391 H391
H392 H392
H393 H393