Atom Nomenclature for 998

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 998

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
N5 N5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
O14 O14
N15 N15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
O21 O21
N22 N22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
O29 O29
N30 N30
C31 C31
CNM CNM
H43 H43
H35 H35
H44 H44
HS1 HS1
HS2 HS2
HW1 HW1
HW2 HW2
H36 H36
H34 H34
HV1 HV1
HV2 HV2
H33 H33
HPA HPA
HP1 HP1
HP2 HP2
HR1 HR1
HR2 HR2
HQ1 HQ1
HQ2 HQ2
HTA HTA
H53 H53
HT11 HT11
HT12 HT12
HT13 HT13
HT21 HT21
HT22 HT22
HT23 HT23
HT31 HT31
HT32 HT32
HT33 HT33
HAA HAA
H67 H67
HB1 HB1
HB2 HB2
HB3 HB3
HM1 HM1
HM2 HM2
HM3 HM3