Atom Nomenclature for XNC

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 XNC

Atom Name (V3) Atom Name (V2)
O35 O35
C16 C16
C17 C17
C43 C43
C42 C42
C41 C41
C40 C40
C44 C44
N39 N39
N7 N7
C4 C4
C3 C3
C2 C2
C8 C8
C9 C9
S12 S12
O32 O32
O33 O33
C13 C13
C14 C14
C37 C37
C38 C38
C15 C15
C10 C10
N11 N11
C5 C5
C6 C6
O36 O36
C1 C1
C18 C18
C23 C23
F34 F34
C22 C22
C21 C21
C20 C20
C19 C19
O24 O24
C25 C25
C26 C26
C31 C31
C30 C30
C29 C29
C28 C28
C27 C27
H43 H43
H42 H42
H41 H41
H44 H44
H44A H44A
H44B H44B
H3 H3
H2 H2
H8 H8
H13 H13
H13A H13A
H37 H37
H37A H37A
H37B H37B
H38 H38
H38A H38A
H38B H38B
H15 H15
H15A H15A
HN11 HN11
HO36 HO36
H1 H1
H22 H22
H20 H20
H19 H19
H25 H25
H25A H25A
H31 H31
H30 H30
H29 H29
H28 H28
H27 H27