Atom Nomenclature for SEI

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 SEI

Atom Name (V3) Atom Name (V2)
C2 C2
C3 C3
C15 C15
C19 C19
C20 C20
C21 C21
C22 C22
C27 C27
C30 C30
C31 C31
C35 C35
O1 O1
N4 N4
C5 C5
C6 C6
O16 O16
C17 C17
C18 C18
N28 N28
C29 C29
C40 C40
O42 O42
C44 C44
C45 C45
C46 C46
C47 C47
C52 C52
N53 N53
N54 N54
O58 O58
C59 C59
C61 C61
C62 C62
C66 C66
C71 C71
C73 C73
O74 O74
F75 F75
F76 F76
C77 C77
F78 F78
F79 F79
F80 F80
O81 O81
H21 1H2
H22 2H2
H31 1H3
H32 2H3
H201 1H20
H211 1H21
H301 1H30
H311 1H31
H312 2H31
H313 3H31
H351 1H35
H352 2H35
H353 3H35
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H171 1H17
H182 2H18
H281 1H28
H291 1H29
H441 1H44
H451 1H45
H452 2H45
H461 1H46
H462 2H46
H471 1H47
H472 2H47
H531 1H53
H591 1H59
H611 1H61
H621 1H62
H622 2H62
H623 3H62
H661 1H66
H662 2H66
H663 3H66