Atom Nomenclature for 37X

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 37X

Atom Name (V3) Atom Name (V2)
OAL O1
OAN O2
C1 C1
O1 O3
C2 C2
O2 O4
C3 C3
O3 O5
C4 C4
O4 O6
C5 C5
O5 O7
C6 C6
O6 O8
OAP O9
CBC C7
CBD C8
CBE C9
CBF C10
CBG C11
CBH C12
CBI C13
CBJ C14
CBK C15
CBL C16
CBP C17
CBQ C18
CBR C19
CBS C20
CBT C21
OBV O10
OBX O11
OCB O12
CCF C22
CCH C23
CCJ C24
CCL C25
CCM C26
CCQ C27
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23
H24 H24
H25 H25
H26 H26
H27 H27
H28 H28
H29 H29
H30 H30
H31 H31
H32 H32
H33 H33
H34 H34
H35 H35
H36 H36
H37 H37
H38 H38
H39 H39
H40 H40
H41 H41
H42 H42
H43 H43
H44 H44
H45 H45
H46 H46
H47 H47
H48 H48
H49 H49
H50 H50
H51 H51
H52 H52