Data Item _pdbx_nmr_exptl_sample.isotopic_labeling

General

Item name
_pdbx_nmr_exptl_sample.isotopic_labeling
Category name
pdbx_nmr_exptl_sample
Attribute name
isotopic_labeling
Required in PDB entries
no
Used in current PDB entries
Yes, in about 3.0 % of entries

Item Description

The isotopic composition of each component, including the % labeling level, if known. For example: 1. Uniform (random) labeling with 15N: U-15N 2. Uniform (random) labeling with 13C, 15N at known labeling levels: U-95% 13C;U-98% 15N 3. Residue selective labeling: U-95% 15N-Thymine 4. Site specific labeling: 95% 13C-Ala18, 5. Natural abundance labeling in an otherwise uniformly labled biomolecule is designated by NA: U-13C; NA-K,H
 U-13C,15N
 U-2H

Data Type

Data type code
line
Data type detail
char item types / multi-word items ...
Primitive data type code
char
Regular expression
[][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*

Aliases

Alias Item Name Dictionary Name Dictionary Version
_rcsb_nmr_exptl_sample.isotopic_labeling cif_rcsb.dic 1.1