Atom Nomenclature for L20

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 L20

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
N3 N3
N4 N4
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
N14 N14
C15 C15
C16 C16
O17 O17
C18 C18
C19 C19
N21 N21
C25 C25
C26 C26
C27 C27
N28 N28
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
H1C1 1H1C
H1C2 2H1C
H1C3 3H1C
H4 H4
H7 H7
H8 H8
H10 H10
H13 H13
H36 H36
H15 H15
H181 1H18
H182 2H18
H19 H19
H211 1H21
H212 2H21
H251 1H25
H252 2H25
H27 H27
H28 H28
H31 H31
H32 H32
H33 H33
H34 H34