Atom Nomenclature for 23E

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 23E

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
N4 N4
C5 C5
O6 O6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
O15 O15
C16 C16
C17 C17
C18 C18
C19 C19
O20 O20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
N26 N26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
O38 O38
C39 C39
C40 C40
C41 C41
C42 C42
C43 C43
C44 C44
N45 N45
C46 C46
O47 O47
HN1 HN1
HN4 HN4
H7 H7
H8 H8
H10 H10
H11 H11
H12 H12
H13 H13
H16 H16
H16A H16A
H17 H17
H17A H17A
H18 H18
H18A H18A
H19 H19
H19A H19A
HO20 HO20
H23 H23
H24 H24
H25 H25
H31 H31
H33 H33
H33A H33A
H34 H34
H34A H34A
H35 H35
H35A H35A
H36 H36
H36A H36A
H37 H37
H37A H37A
H39 H39
H40 H40
H41 H41
H42 H42
H44 H44
H44A H44A
HN45 HN45