Atom Nomenclature for MMI

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 MMI

Atom Name (V3) Atom Name (V2)
C11 C11
C12 C12
C13 C13
C14 C14
N1 N1
C16 C16
O12 O12
O13 O13
C17 C17
C15 C15
O11 O11
N21 N21
C21 C21
C22 C22
C23 C23
O22 O22
N22 N22
C29 C29
O21 O21
C28 C28
C27 C27
C26 C26
C25 C25
C24 C24
N3 N3
C31 C31
C32 C32
O31 O31
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
C38 C38
C39 C39
C30 C30
O32 O32
N4 N4
C41 C41
C42 C42
C45 C45
O4 O4
C44 C44
C43 C43
N5 N5
C51 C51
C52 C52
C57 C57
C56 C56
C55 C55
C54 C54
C53 C53
H11 H11
H12 H12
H131 1H13
H132 2H13
H133 3H13
H141 1H14
H142 2H14
H143 3H14
HN1 HN1
H171 1H17
H172 2H17
H2 H2
H21 H21
H221 1H22
H222 2H22
H22 H22
H281 1H28
H282 2H28
H271 1H27
H272 2H27
H261 1H26
H262 2H26
H251 1H25
H252 2H25
H241 1H24
H242 2H24
HN3 HN3
H1 H1
H32 H32
H31 H31
H331 1H33
H332 2H33
H34 H34
H351 1H35
H352 2H35
H353 3H35
H361 1H36
H362 2H36
H363 3H36
H371 1H37
H372 2H37
H38 H38
H391 1H39
H392 2H39
H393 3H39
HN4 HN4
H41 H41
H42 H42
H441 1H44
H442 2H44
H443 3H44
H431 1H43
H432 2H43
H433 3H43
HN5 HN5
H511 1H51
H512 2H51
H57 H57
H56 H56
H55 H55
H54 H54
H53 H53