Atom Nomenclature for MS3

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 MS3

Atom Name (V3) Atom Name (V2)
C01 C01
C02 C02
C03 C03
C04 C04
C05 C05
C06 C06
C07 C07
C08 C08
C09 C09
C10 C10
C11 C11
C12 C12
C13 C13
O14 O14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
O20 O20
N21 N21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
O27 O27
N28 N28
C29 C29
O30 O30
C31 C31
O32 O32
O33 O33
C34 C34
O35 O35
N36 N36
C37 C37
C38 C38
C39 C39
C40 C40
C41 C41
O42 O42
N43 N43
C44 C44
C45 C45
C46 C46
C47 C47
C48 C48
C49 C49
N50 N50
C51 C51
C52 C52
C53 C53
C54 C54
C55 C55
N56 N56
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H131 1H13
H132 2H13
H15 H15
H16 H16
H17 H17
H18 H18
H21 H21
H22 H22
H23 H23
H241 1H24
H242 2H24
H243 3H24
H251 1H25
H252 2H25
H253 3H25
H28 H28
H291 1H29
H292 2H29
H311 1H31
H312 2H31
H32 H32
H33 H33
H36 H36
H37 H37
H38 H38
H391 1H39
H392 2H39
H393 3H39
H401 1H40
H402 2H40
H403 3H40
H43 H43
H441 1H44
H442 2H44
H46 H46
H47 H47
H48 H48
H49 H49
H52 H52
H53 H53
H54 H54
H55 H55