Atom Nomenclature for 12U

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 12U

Atom Name (V3) Atom Name (V2)
C14 C14
O32 O32
C5 C5
N21 N21
C49 C49
C48 C48
C47 C47
C46 C46
C52 C52
C51 C51
C50 C50
N1 N1
C1 C1
C7 C7
O22 O22
C2 C2
C3 C3
C4 C4
N23 N23
C24 C24
C25 C25
C30 C30
C29 C29
C28 C28
C9 C9
N10 N10
N11 N11
C27 C27
C26 C26
H5 H5
H5A H5A
HN21 HN21
H49 H49
H48 H48
H48A H48A
H47 H47
H47A H47A
H46 H46
H46A H46A
H52 H52
H52A H52A
H51 H51
H51A H51A
H50 H50
H50A H50A
H1 H1
H2 H2
H2A H2A
H3 H3
H3A H3A
H4 H4
H4A H4A
HN23 HN23
H24 H24
H24A H24A
H30 H30
H29 H29
HN10 HN10
HN11 HN11
HN1A HN1A
H27 H27
H26 H26