Atom Nomenclature for H2B

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 H2B

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
N2 N2
N3 N3
C4 C4
O4 O4
C4A C4A
C8A C8A
N5 N5
N8 N8
C6 C6
C7 C7
C9 C9
O9 O9
C10 C10
C11 C11
O10 O10
H22 2H2
H21 1H2
H8 H8
H6 H6
H71 1H7
H72 2H7
H9 H9
H9O1 1H9O
H10 H10
H113 3H11
H112 2H11
H111 1H11
H1O1 1H1O