Atom Nomenclature for MR0

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 MR0

Atom Name (V3) Atom Name (V2)
N1 N1
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C10 C10
C13 C13
C15 C15
C17 C17
C20 C20
C21 C21
C22 C22
C24 C24
C26 C26
C28 C28
C C
C1 C1
C2 C2
C3 C3
O O
N N
C9 C9
C11 C11
C12 C12
C14 C14
O1 O1
C16 C16
C18 C18
N2 N2
C19 C19
C23 C23
C25 C25
O3 O3
C27 C27
C29 C29
C30 C30
C31 C31
O2 O2
CO CO
N7A N7A
O7B O7B
F30 F30
F26 F26
HN1 HN1
H5 H5
H101 1H10
H102 2H10
H131 1H13
H132 2H13
H15 H15
H171 1H17
H172 2H17
H21 H21
H22 H22
H1 H1
H3 H3
H91 1H9
H92 2H9
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H123 3H12
H141 1H14
H142 2H14
H143 3H14
H16 H16
H181 1H18
H182 2H18
HN2 HN2
H191 1H19
H192 2H19
H23 H23
H25 H25
H27 H27
H29 H29
H31 H31
HO2 HO2
HO1 1HO
HO2A 2HO
HO3 3HO
H7A1 1H7A
H7A2 2H7A