Atom Nomenclature for 006

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 006

Atom Name (V3) Atom Name (V2)
N2 N2
C20 C20
O20 O20
C21 C21
O21 O21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
N30 N30
O30 O30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
C38 C38
C39 C39
C40 C40
O40 O40
C41 C41
O41 O41
C42 C42
C43 C43
C44 C44
C45 C45
C46 C46
C47 C47
C48 C48
C49 C49
C50 C50
N50 N50
O50 O50
S50 S50
C51 C51
C52 C52
C53 C53
C54 C54
C55 C55
HN2 HN2
H20 H20
HO20 HO20
H21 H21
H21A H21A
H23 H23
H24 H24
H25 H25
H26 H26
H27 H27
H28 H28
HN30 HN30
HO30 HO30
H31 H31
H33 H33
H34 H34
H35 H35
H37 H37
H38 H38
H39 H39
H39A H39A
H40 H40
H41 H41
H43 H43
H43A H43A
H43B H43B
H44 H44
H44A H44A
H44B H44B
H47 H47
H49 H49
H49A H49A
H50 H50
H50A H50A
H52 H52
H52A H52A
H52B H52B
H53 H53
H53A H53A
H53B H53B
H54 H54