Atom Nomenclature for MPX

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 MPX

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
N10 N10
C16 C16
S25 S25
N17 N17
N18 N18
C23 C23
C22 C22
N21 N21
C24 C24
C20 C20
C19 C19
S7 S7
N15 N15
O14 O14
O13 O13
H2 H2
H3 H3
H5 H5
H6 H6
H10 H10
H17 H17
H231 1H23
H232 2H23
H221 1H22
H222 2H22
H241 1H24
H242 2H24
H243 3H24
H201 1H20
H202 2H20
H191 1H19
H192 2H19
H151 1H15
H152 2H15