Atom Nomenclature for CPQ

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 CPQ

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
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
C21 C21
C22 C22
C23 C23
O2 O2
O4 O4
C57 C57
N59 N59
C74 C74
C75 C75
C76 C76
N77 N77
C78 C78
C80 C80
O86 O86
C81 C81
O87 O87
C82 C82
O88 O88
C83 C83
O89 O89
C84 C84
O85 O85
O79 O79
C68 C68
C69 C69
C70 C70
N71 N71
C72 C72
C90 C90
O96 O96
C91 C91
O97 O97
C92 C92
O98 O98
C93 C93
O99 O99
C94 C94
O95 O95
O73 O73
O58 O58
H11 1H1
H12 2H1
H31 1H3
H32 2H3
H4 H4
H6 H6
H71 1H7
H72 2H7
H81 1H8
H82 2H8
H9 H9
H101 1H10
H102 2H10
H103 3H10
H111 1H11
H112 2H11
H113 3H11
H121 1H12
H122 2H12
H13 H13
H141 1H14
H142 2H14
H151 1H15
H161 1H16
H162 2H16
H171 1H17
H172 2H17
H18 H18
H19 H19
H20 H20
H211 1H21
H212 2H21
H213 3H21
H221 1H22
H222 2H22
H231 1H23
H232 2H23
HO2 HO2
HO4 HO4
H741 1H74
H742 2H74
H751 1H75
H752 2H75
H761 1H76
H762 2H76
H771 1H77
H801 1H80
H861 1H86
H811 1H81
H871 1H87
H821 1H82
H881 1H88
H831 1H83
H891 1H89
H841 1H84
H842 2H84
H851 1H85
H681 1H68
H682 2H68
H691 1H69
H692 2H69
H701 1H70
H702 2H70
H711 1H71
H901 1H90
H961 1H96
H911 1H91
H971 1H97
H921 1H92
H981 1H98
H931 1H93
H991 1H99
H941 1H94
H942 2H94
H951 1H95