Atom Nomenclature for CTO

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 CTO

Atom Name (V3) Atom Name (V2)
C13 C17
C23 C18
C33 C21
C43 C22
C53 C23
C63 C24
C73 C19
C83 C20
N23 N3
O13 O11
O33 O13
O43 O14
O53 O15
O63 O16
O73 O12
C12 C9
C22 C10
C32 C13
C42 C14
C52 C15
C62 C16
C72 C11
C82 C12
N22 N2
O32 O7
O42 O8
O52 O9
O62 O10
O72 O6
C11 C1
C21 C2
C31 C5
C41 C6
C51 C7
C61 C8
C71 C3
C81 C4
N21 N1
O31 O2
O41 O3
O51 O4
O61 O5
O71 O1
H13 H28
H23 H30
H33 H35
H43 H37
H53 H38
H631 H39
H632 H40
H831 H32
H832 H33
H833 H34
HNN H31
HOD H29
HOX H36
HO3 H41
H12 H15
H22 H16
H32 H21
H42 H23
H52 H24
H621 H25
H622 H26
H821 H19
H822 H20
H823 H18
HNM H17
HOW H22
HO2 H27
H11 H1
H21 H2
H31 H7
H41 H9
H51 H11
H611 H12
H612 H13
H811 H6
H812 H4
H813 H5
HNL H3
HOV H8
HO4 H10
HO6 H14