Atom Nomenclature for MLR

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 MLR

Atom Name (V3) Atom Name (V2)
C1A C1
C2A C2
C3A C3
C4A C4
C5A C5
C6A C6
O1X O1
O2A O2
O3A O3
O4A O4
O5A O5
O6A O6
C1B C7
C2B C8
C3B C9
C4B C10
C5B C11
C6B C12
O2B O7
O3B O8
O4B O9
O5B O10
O6B O11
C1C C13
C2C C14
C3C C15
C4C C16
C5C C17
C6C C18
O2C O12
O3C O13
O4C O14
O5C O15
O6C O16
H1A H1
H2A H2
H3A H3
H4A H4
H5A H5
H6A1 H6
H6A2 H7
H1X H8
HOA2 H9
HOA3 H10
HOA6 H11
H1B H12
H2B H13
H3B H14
H4B H15
H5B H16
H6B1 H17
H6B2 H18
HOB2 H19
HOB3 H20
HOB6 H21
H1C H22
H2C H23
H3C H24
H4C H25
H5C H26
H6C1 H27
H6C2 H28
HOC2 H29
HOC3 H30
HOC4 H31
HOC6 H32