Atom Nomenclature for 318

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 318

Atom Name (V3) Atom Name (V2)
F1 F1
F2 F2
N1 N1
C1 C1
C2 C2
O1 O1
C3 C3
N2 N2
C4 C4
N3 N3
C5 C5
C6 C6
C7 C7
O2 O2
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
O3 O3
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
O4 O4
N4 N4
C29 C29
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
HN1 HN1
H1 H1
H2 H2
HO1 HO1
H3 H3
HN2 HN2
H4 H4
H4A H4A
H6 H6
H6A H6A
H8 H8
H8A H8A
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H16 H16
H18 H18
H20 H20
H22 H22
H24 H24
H26 H26
H27 H27
H27A H27A
H27B H27B
H29 H29
H29A H29A
H30 H30
H30A H30A
H31 H31
H31A H31A
H31B H31B
H32 H32
H32A H32A
H33 H33
H33A H33A
H34 H34
H34A H34A
H34B H34B