Atom Nomenclature for JAS

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 JAS

Atom Name (V3) Atom Name (V2)
O13 O13
C40 C40
N4 N4
C41 C41
C35 C35
C34 C34
C33 C33
C32 C32
O12 O12
C42 C42
C31 C31
C39 C39
C30 C30
O11 O11
C29 C29
C28 C28
C27 C27
C38 C38
C26 C26
O10 O10
C43 C43
C25 C25
C24 C24
O2 O2
C1 C1
O1 O1
C2 C2
C3 C3
O3 O3
C4 C4
C5 C5
O4 O4
C6 C6
C23 C23
C37 C37
C22 C22
C21 C21
C20 C20
C19 C19
C18 C18
O9 O9
C17 C17
N3 N3
C16 C16
C15 C15
N2 N2
O8 O8
C14 C14
C13 C13
C12 C12
N1 N1
O7 O7
C11 C11
C10 C10
C9 C9
O6 O6
C44 C44
C8 C8
C36 C36
C7 C7
O5 O5
H401 1H40
H402 2H40
H411 1H41
H412 2H41
H413 3H41
H35 H35
H34 H34
H331 1H33
H332 2H33
H32 H32
H421 1H42
H422 2H42
H423 3H42
H31 H31
H391 1H39
H392 2H39
H393 3H39
H291 1H29
H292 2H29
H281 1H28
H282 2H28
H27 H27
H381 1H38
H382 2H38
H383 3H38
H26 H26
H431 1H43
H432 2H43
H433 3H43
H251 1H25
H252 2H25
H24 H24
H21 1H2
H22 2H2
H3 H3
H41 1H4
H42 2H4
H5 H5
HO4 HO4
H61 1H6
H62 2H6
H23 H23
H371 1H37
H372 2H37
H373 3H37
H221 1H22
H222 2H22
H211 1H21
H212 2H21
H20 H20
H19 H19
H17 H17
H14 H14
H11 H11
H9 H9
H441 1H44
H442 2H44
H443 3H44
H8 H8
H361 1H36
H362 2H36
H363 3H36
HO1 HO1
HO2 HO2