Atom Nomenclature for INP

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 INP

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
O8 O8
C9 C9
O10 O10
N11 N11
C12 C12
C13 C13
N14 N14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
N23 N23
C24 C24
O25 O25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
N31 N31
C32 C32
O33 O33
O34 O34
C35 C35
C36 C36
C37 C37
C38 C38
N39 N39
C40 C40
C41 C41
O42 O42
H1 H1
H2 H2
H4 H4
H5 H5
H6 H6
H71 1H7
H72 2H7
HN1 HN1
H12 H12
H131 1H13
H132 2H13
H151 1H15
H152 2H15
H161 1H16
H162 2H16
H18 H18
H191 1H19
H192 2H19
H20 H20
H211 1H21
H212 2H21
H213 3H21
H221 1H22
H222 2H22
H223 3H22
HN2 HN2
H26 H26
H271 1H27
H272 2H27
H28 H28
H291 1H29
H292 2H29
H293 3H29
H301 1H30
H302 2H30
H303 3H30
HN3 HN3
H351 1H35
H352 2H35
H37 H37
H38 H38
H40 H40
H41 H41