Atom Nomenclature for 50L

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 50L

Atom Name (V3) Atom Name (V2)
P1 P
N1 N9
C1 C8
C2 C6
O1 O6
N2 N1
C3 C2
N3 N2
N4 N3
C4 C4
C5 C5*
O2 O5*
C6 C4*
O3 O4*
C7 C3*
O4 O3*
C8 C2*
O5 O2*
C9 C1*
N5 N5
C10 C7
O6 OP1
O7 OP2
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
H15 HOP2
O8 OP3
H17 HOP3