Biological Magnetic Resonance Data Bank

A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules
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DescriptionA code indicating the presence of ambiguity in the assignment of the atom to the coupling constant value. This type of ambiguity can arise for geminal groups like the glycine alpha protons and other methylene groups.
Parent saveframecoupling_constants
Data typecode
DB tableCoupling_constant
DB columnAmbiguity_code_2
NULL allowedyes