Atom Nomenclature for TCG

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 TCG

Atom Name (V3) Atom Name (V2)
C13 C8
C23 C3
C33 C4
C43 C5
C53 C6
C63 C7
C73 C1
C83 C2
N23 N1
O13 O5
O33 O2
O43 O6
O53 O4
O63 O3
O73 O1
C12 C9
C22 C14
C32 C13
C42 C12
C52 C10
C62 C11
C72 C15
C82 C16
N22 N2
O32 O9
O42 O11
O52 O7
O62 O8
O72 O10
C11 C17
C21 C22
C31 C21
C41 C20
C51 C18
C61 C19
C71 C23
C81 C24
N21 N3
O31 O14
O41 O16
O51 O12
O61 O13
O71 O15
C1 C25
C2 C26
N2 N4
C3 C30
O3 O17
C4 C31
O4 O18
C5 C32
O5 O19
C6 C33
O6 O20
C7 C29
C8 C28
C9 C27
H13 H13
H5 H5
H6 H6
H8 H8
H9 H9
H10 H10
H11 H11
H1 H1
H2 H2
H3 H3
H4 H4
H14 H14
H7 H7
H12 H12
H15 H15
H23 H23
H21 H21
H20 H20
H16 H16
H17 H17
H18 H18
H25 H25
H26 H26
H27 H27
H24 H24
H22 H22
H19 H19
H28 H28
H36 H36
H34 H34
H33 H33
H29 H29
H30 H30
H31 H31
H38 H38
H39 H39
H40 H40
H37 H37
H35 H35
H32 H32
H41 H41
H42 H42
H52 H52
H53 H53
H54 H54
H55 H55
H56 H56
H57 H57
H58 H58
H59 H59
H49 H49
H50 H50
H51 H51
H46 H46
H47 H47
H48 H48
H43 H43
H44 H44
H45 H45