Atom Nomenclature for C4A

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 C4A

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C4 C4
C5 C5
C6 C6
C3 C3
C8 C8
O9 O9
N7 N7
O10 O10
C11 C11
C12 C12
O14 O14
C15 C15
N16 N16
O17 O17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
O27 O27
N28 N28
C29 C29
C30 C30
C31 C31
C32 C32
C33 C33
C34 C34
C35 C35
C36 C36
C37 C37
N38 N38
C13 C13
HN11 1HN1
HN12 2HN1
H21A 1H2
H22A 2H2
H41 1H4
H42 2H4
H51 1H5
H52 2H5
H6 H6
H31 1H3
H32 2H3
HN7 HN7
H111 1H11
H112 2H11
H121 1H12
H122 2H12
H123 3H12
H191 1H19
H192 2H19
H21 H21
H22 H22
H24 H24
H25 H25
H28 H28
H29 H29
H301 1H30
H302 2H30
H331 1H33
H332 2H33
H34 H34
H35 H35
H36 H36
H37 H37