Atom Nomenclature for SNA

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 SNA

Atom Name (V3) Atom Name (V2)
P1 P1
O2 O2
O3 O3
O4 O4
C5 C5
F6 F6
F7 F7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
N16 N16
C17 C17
N18 N18
O19 O19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
N25 N25
C26 C26
C27 C27
C28 C28
O29 O29
O30 O30
C31 C31
O32 O32
C33 C33
O34 O34
P35 P35
O36 O36
O37 O37
O38 O38
C39 C39
F40 F40
F41 F41
C42 C42
C43 C43
C44 C44
C45 C45
C46 C46
C47 C47
C48 C48
C49 C49
O50 O50
N51 N51
C52 C52
C53 C53
S54 S54
C55 C55
O56 O56
N57 N57
HO3 HO3
HO4 HO4
H9 H9
H10 H10
H12 H12
H13 H13
H141 1H14
H142 2H14
H15 H15
H16 H16
H18 H18
H201 1H20
H202 2H20
H211 1H21
H212 2H21
H221 1H22
H222 2H22
H231 1H23
H232 2H23
H241 1H24
H242 2H24
H25 H25
H26 H26
H271 1H27
H272 2H27
H30 H30
H37 H37
H38 H38
H42 H42
H44 H44
H45 H45
H461 1H46
H462 2H46
H47 H47
H51 H51
H52 H52
H531 1H53
H532 2H53
H54 H54
H571 1H57
H572 2H57