Atom Nomenclature for XME

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 XME

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
CL7 CL7
C8 C8
C9 C9
C10 C10
C11 C11
S12 S12
O13 O13
C14 C14
O15 O15
C16 C16
N17 N17
C18 C18
C19 C19
N20 N20
O21 O21
C22 C22
C23 C23
N24 N24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
N32 N32
O33 O33
C34 C34
N35 N35
C36 C36
C37 C37
H1 H1
H4 H4
H5 H5
H8 H8
H9 H9
H10 H10
H161 1H16
H162 2H16
H181 1H18
H182 2H18
H191 1H19
H192 2H19
H221 1H22
H222 2H22
H23 H23
H26 H26
H271 1H27
H272 2H27
H28 H28
H291 1H29
H292 2H29
H31 H31
H33 H33
H341 1H34
H342 2H34
H36 H36
H371 1H37
H372 2H37