Atom Nomenclature for EDS

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 EDS

Atom Name (V3) Atom Name (V2)
CAQ C1
CAR C2
CAS C3
CAT C4
CAU C5
CAV C6
CAW C7
CAX C8
CAY C9
CAZ C10
CBA C11
CBB C12
CBC C13
CBD C14
CBE C15
CBF C16
CBG C17
CBH C18
CBI C19
CBJ C20
CBK C21
CBL C22
CBM C23
CBN C24
CBO C25
NAK N1
NAL N2
NAM N3
NAN N4
NAO N5
NAP N6
OAA O1
OAB O2
OAC O3
OAD O4
OAE O5
OAF O6
OAG O7
OAH O8
OAI O9
OAJ O10
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23
H25 H25
H27 H27
H28 H28
H29 H29
H30 H30
H31 H31
H32 H32
H33 H33
H34 H34
H35 H35
H36 H36
H37 H37
H38 H38
H39 H39
H41 H41
H43 H43
H44 H44
H46 H46
H48 H48
H49 H49
H51 H51
H52 H52
H53 H53
H54 H54
H55 H55