Atom Nomenclature for 3SD

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 3SD

Atom Name (V3) Atom Name (V2)
C4 C4
C5 C5
C6 C6
O1 O1
N2 N2
C3 C3
C41 C41
O42 O42
C8 C8
C10 C10
N7 N7
C9 C9
C33 C33
O35 O35
N34 N34
C36 C36
C37 C37
C40 C40
C38 C38
C39 C39
O11 O11
N13 N13
C12 C12
C15 C15
O19 O19
C14 C14
C17 C17
C18 C18
C28 C28
C32 C32
C29 C29
C31 C31
C30 C30
C20 C20
C21 C21
C22 C22
C24 C24
C26 C26
N16 N16
C23 C23
C27 C27
C25 C25
H4 H4
H6 H6
H6A H6A
H6B H6B
H8 H8
HN7 HN7
H9 H9
H9A H9A
HN34 HN34
H36 H36
H36A H36A
H40 H40
H40A H40A
H40B H40B
H38 H38
H38A H38A
H38B H38B
H39 H39
H39A H39A
H39B H39B
HN13 HN13
H12 H12
H14 H14
H14A H14A
H17 H17
H17A H17A
H28 H28
H32 H32
H29 H29
H31 H31
H30 H30
H20 H20
H20A H20A
H22 H22
H26 H26
HN16 HN16
H23 H23
H27 H27
H27A H27A
H27B H27B
H25 H25