Atom Nomenclature for RAL

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 RAL

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
O3 O3
C4 C4
C5 C5
S6 S6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
O11 O11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
O16 O16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
O23 O23
C24 C24
C25 C25
N26 N26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
H1 H1
H2 H2
HO3 HO3
H4 H4
H9 H9
H10 H10
HO1 HO1
H12 H12
H13 H13
H18 H18
H19 H19
H21 H21
H22 H22
H241 1H24
H242 2H24
H251 1H25
H252 2H25
H271 1H27
H272 2H27
H281 1H28
H282 2H28
H291 1H29
H292 2H29
H301 1H30
H302 2H30
H311 1H31
H312 2H31