Atom Nomenclature for Q50

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 Q50

Atom Name (V3) Atom Name (V2)
O49 O49
C48 C48
N50 N50
C40 C40
C41 C41
C42 C42
C43 C43
C44 C44
C45 C45
C46 C46
C47 C47
N39 N39
C37 C37
O38 O38
C31 C31
C32 C32
C33 C33
C34 C34
O35 O35
N36 N36
N30 N30
C28 C28
O29 O29
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C19 C19
C17 C17
O18 O18
C9 C9
N8 N8
C6 C6
O7 O7
O5 O5
C1 C1
C4 C4
C3 C3
C2 C2
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
H501 1H50
H502 2H50
H40 H40
H411 1H41
H412 2H41
H43 H43
H44 H44
H45 H45
H46 H46
H47 H47
H39 H39
H31 H31
H321 1H32
H322 2H32
H331 1H33
H332 2H33
H361 1H36
H362 2H36
H30 H30
H20 H20
H211 1H21
H212 2H21
H23 H23
H24 H24
H25 H25
H26 H26
H27 H27
H191 1H19
H192 2H19
H9 H9
HN8 HN8
H41 1H4
H42 2H4
H43A 3H4
H31A 1H3
H32 2H3
H33 3H3
H21 1H2
H22 2H2
H23A 3H2
H101 1H10
H102 2H10
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16