Atom Nomenclature for U75

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 U75

Atom Name (V3) Atom Name (V2)
C4 C1
C5 C2
C6 C3
N1 N1
N3 N2
CAI C4
CAH C5
C2 C6
NAJ N3
NAG N4
CAK C7
CAL C8
CAM C9
CAN C10
CAO C11
CAS C12
CAR C13
OBB O1
CBC C14
CAQ C15
CAP C16
CAT C17
CAU C18
CAV C19
CAW C20
CAZ C21
OBD O2
OBA O3
CAX C22
CAY C23
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
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22