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Biological Magnetic Resonance Data Bank


A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules

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This page is meant to be a tool for mass spectrometry. The monoisotopic masses for nearly 11 000 biologically relevant organic molecules have been calculated and inserted into a database to be searched against.

Mass distribution:
ppm dalton
MonoIsotopic composition:
Natural composition (12C 14N)
13C labeled 15N labeled 13C and 15N labeled
Ionization:
+1 (additional H+) neutral -1 (one less H+)
+1 (one less e-) neutral -1 (additional e-)
Query by:
uploading a file with a list of query values:


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email address
Query by:
Entering one or more values to query: