Atom Nomenclature for 26B

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 26B

Atom Name (V3) Atom Name (V2)
N N
CA CA
C C
O O
OXT OXT
C1 C1
C2 C2
O3 O3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
O9 O9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
N20 N20
C21 C21
O22 O22
N23 N23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
C32 C32
HN HN
HA HA
HOXT HOXT
H1 H1
H1A H1A
H1B H1B
H2 H2
H5 H5
H5A H5A
H5B H5B
H6 H6
H6A H6A
H6B H6B
H7 H7
H7A H7A
H7B H7B
H11 H11
H13 H13
H14 H14
H15 H15
H16 H16
H18 H18
HN20 HN20
HN23 HN23
H26 H26
H26A H26A
H26B H26B
H27 H27
H29 H29
H29A H29A
H29B H29B
H30 H30
H32 H32
H32A H32A
H32B H32B