Atom Nomenclature for NTP

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 NTP

Atom Name (V3) Atom Name (V2)
O4G O4G
C50 C50
C51 C51
O52 O52
C53 C53
O54 O54
S55 S55
O56 O56
O57 O57
O58 O58
C59 C59
O5A O5A
S5B S5B
O5C O5C
O5D O5D
O5E O5E
C5F C5F
O5G O5G
S5H S5H
O5I O5I
O5J O5J
O5K O5K
C5L C5L
O5M O5M
C5N C5N
O3M O3M
C40 C40
C41 C41
O42 O42
C43 C43
O44 O44
O45 O45
C46 C46
O47 O47
C48 C48
C49 C49
O4A O4A
S4B S4B
O4C O4C
O4D O4D
O4E O4E
C4F C4F
C3L C3L
C3F C3F
O3G O3G
S3H S3H
C39 C39
O3A O3A
S3B S3B
C30 C30
O2D O2D
C31 C31
O32 O32
C33 C33
O34 O34
S35 S35
O3I O3I
O3J O3J
O3K O3K
O3C O3C
O3E O3E
O3D O3D
O37 O37
O36 O36
O38 O38
C2C C2C
C29 C29
O2A O2A
C2B C2B
C26 C26
O27 O27
C28 C28
O22 O22
C21 C21
C23 C23
O25 O25
O24 O24
C20 C20
O1L O1L
O10 O10
C11 C11
C12 C12
C13 C13
O14 O14
C15 C15
O16 O16
S17 S17
O18 O18
O19 O19
O1A O1A
C1B C1B
O1C O1C
C1D C1D
C1E C1E
O1F O1F
S1G S1G
O1H O1H
O1I O1I
O1J O1J
C1K C1K
H50 H50
H51 H51
H531 1H53
H532 2H53
H58 H58
H59 H59
HO5D DHO5
H5F H5F
HO5I IHO5
H5L H5L
H5N1 1H5N
H5N2 2H5N
H5N3 3H5N
H40 H40
H41 H41
H45 H45
H46 H46
H481 1H48
H482 2H48
H483 3H48
H49 H49
HO4 HO4
H4F H4F
H3L H3L
H3F H3F
H39 H39
H30 H30
H31 H31
H331 1H33
H332 2H33
HO3I IHO3
HO3D DHO3
HO7 HO7
H2C H2C
H29 H29
H2B1 1H2B
H2B2 2H2B
H2B3 3H2B
H26 H26
H281 1H28
H282 2H28
H283 3H28
H21 H21
H25 H25
H20 H20
H111 1H11
H112 2H11
H113 3H11
H12 H12
H13 H13
H151 1H15
H152 2H15
HO8 HO8
H1B H1B
H1D1 1H1D
H1D3 3H1D
H1D2 2H1D
H1E H1E
HO1 HO1
H1K H1K