Atom Nomenclature for 2K2

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 2K2

Atom Name (V3) Atom Name (V2)
OAD OAD
CAX CAX
NAU NAU
CAS CAS
CBA CBA
CBB CBB
CBH CBH
CBC CBC
CAO CAO
CAI CAI
CAK CAK
CAQ CAQ
CBE CBE
NBM NBM
CBI CBI
CBJ CBJ
CBG CBG
CBD CBD
CAP CAP
CAJ CAJ
CAL CAL
CAR CAR
CBF CBF
NBN NBN
CBQ CBQ
CBP CBP
OAV OAV
CAA CAA
CAC CAC
OAW OAW
CBK CBK
CAT CAT
CAB CAB
CAY CAY
OAE OAE
CAZ CAZ
CAM CAM
CAG CAG
CAF CAF
CAH CAH
CAN CAN
NBO NBO
CBL CBL
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23
H24 H24
H25 H25
H26 H26
H27 H27
H28 H28
H29 H29
H30 H30