Atom Nomenclature for AB1

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 AB1

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
N1 N1
C3 C3
N2 N2
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
O1 O1
C10 C10
C11 C11
N3 N3
C12 C12
C13 C13
C14 C14
C15 C15
O2 O2
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
N4 N4
C26 C26
C27 C27
O3 O3
C28 C28
O4 O4
C29 C29
O5 O5
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
H2 H2
H3 H3
H4 H4
H5 H5
H8 H8
H30 H30
H31 H31
H32 H32
H33 H33
H34 H34
H9 H9
H15 H15
H16 H16
H10 H10
H11 H11
H12 H12
H47 H47
H13 H13
H14 H14
H48 H48
H20 H20
H21 H21
H22 H22
H23 H23
H19 H19
H17 H17
H18 H18
H24 H24
H25 H25
H26 H26
H27 H27
H35 H35
H36 H36
H37 H37
H1 H1
H28 H28
H29 H29
H41 H41
H42 H42
H43 H43
H44 H44
H45 H45
H46 H46
H38 H38
H39 H39
H40 H40
H6 H6
H7 H7