About Nullomers Database

Nullomers (a.k.a. minimal absent words) are minimal-length oligomers absent from a genome or proteome. The Nullomers Database is a web-based resource which aims to provide an intuitive interface for sharing statistically significant non-occurring sequences which are unexpectedly absent in several genomes and proteomes. The provided results are significant absent genomic and peptide sequences as they have been assessed by Nullomers Assessor. Read more about the evaluation method or follow the step-by-step user quide to learn how to use the interface.


If you use either Nullomers Assessor or data from Nullomers Database in your work, please cite the URL and the publication:

A manuscript is currently under consideration for publication, to cite currently please refer to the bioRxiv preprint.

Thank you!


For questions, suggestions, bug-reports, or feedback, please email us:

Grigorios Koulourasg {dot} koulouras {at} beatson {dot} gla {dot} ac {dot} uk
Martin Frithmcfrith {at} edu {dot} k {dot} u-tokyo {dot} ac {dot} jp


This work was supported by the Department of Information Technology and Human Factors, National Institute of Advanced Industrial Science and Technology.