Atom Nomenclature for SFP

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 SFP

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C2A C2A
N2B N2B
C2C C2C
CA CA
C4C C4C
C3 C3
C4 C4
C4A C4A
N4B N4B
CB CB
C6C C6C
C5 C5
C6 C6
C6A C6A
N6B N6B
CC CC
C8C C8C
C7 C7
C8 C8
C8A C8A
N8B N8B
CD CD
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
C32 C32
S1 S1
O2 O2
O3 O3
O4 O4
S2 S2
O5 O5
O6 O6
O7 O7
S3 S3
O8 O8
O9 O9
O10 O10
S4 S4
O11 O11
O12 O12
O13 O13
H1 H1
H2 H2
H2B H2B
H3 H3
H4 H4
H5 H5
H6 H6
H6B H6B
H7 H7
H8 H8
H12 H12
H15 H15
H9 H9
H14 H14
H17 H17
H16 H16
H18 H18
H19 H19
H22 H22
H23 H23
H25 H25
H26 H26
H27 H27
H29 H29
H30 H30
H32 H32
HO3 HO3
HO4 HO4
HO6 HO6
HO7 HO7
HO9 HO9
H10 H10
H11 H11
H13 H13