Please try the demo file in the sidebar (Demo File Sets).


The 'Signature Dist' visualization shows the fraction of signatures within individual samples. It can also be used to show the fraction of signatures within several cancer types.

Signature Dist Data (CSV file)

The input is mutation signature compositions in batch of samples using NMF algorithm, e.g., decipherMutationalSignatures.
Check the official demo input here.

The uploaded CSV file must match the required format as specified below.

Observations T01 T02 T03 T04 T05 T06 T07
signature 1 5.364 21.102 13.466 3.781 17.510 10.632 25.913
signature 2 ... ... ... ... ... ... ...
signature .. ... ... ... ... ... ... ...
signature N ... ... ... ... ... ... ...
  • the first line should be the header as specified above.
  • Observations takes the values of the names of signatures.
  • keys like T01 is the name of an individual sample. The number of keys is not limited.
  • each row in the file is the measure of a specified signature in each individual sample. All measures will be normalized to 100% in each sample during visualization.

Display Interactions

There are three types of interactions: Highlights, Scrolling and Download.

  • Highlights
    The bin being pointed to will be highlighted.
  • Scrolling
    When the samples cannot be fitted on one page, a scroller will appear in the bottom and users can drag the scroller to view different samples.
  • Download
    One SVG file will be generated when the 'Download' button is clicked. The SVG file only captures the current view determined by the scroller.

Sidebar Functions

The sidebar provides options to manage files and reorder samples.

  • Files
    • Manage Files: checklist of CSV files uploaded previously, delete or download the CSV files.
    • Upload: upload Signature Dist CSV file. Note that the duplicated file name will be alerted and given a random postfix.
    • Choose: choose files uploaded previously. Note that this function is ONLY available to registered users (each account has certain storage).
    • File Sets: NOT available to this page.
  • Settings
    In settings, users can reorder samples by ascending or descending order of the sample name or the fraction of a certain signature.

Manual version=1.2, written by Miss. LI Shiying and Dr. JIA Wenlong on 2020-04-02.

  1. SZPIECH, Z. A., STRAULI, N. B., WHITE, K. A., RUIZ, D. G., JACOBSON, M. P., BARBER, D. L. and HERNANDEZ, R. D. (2017). Prominent features of the amino acid mutation landscape in cancer. PLoS One, 12(8):e0183273. (PMID: 28837668, See Figure 2)
  2. Zhang, L., Zhou, Y., Cheng, C., Cui, H., Cheng, L., Kong, P., ... & Wang, F. (2015). Genomic analyses reveal mutational signatures and frequently altered genes in esophageal squamous cell carcinoma. The American Journal of Human Genetics, 96(4), 597-611. (PMID: 25839328, See Figure 1B)
  3. Li, X., Wu, W. K., Xing, R., Wong, S. H., Liu, Y., Fang, X., ... & Zhou, Y. (2016). Distinct subtypes of gastric cancer defined by molecular characterization include novel mutational signatures with prognostic capability. Cancer research, 76(7), 1724-1732. (PMID: 26857262, See Figure 1C)
  4. Fujimoto, A., Furuta, M., Totoki, Y., Tsunoda, T., Kato, M., Shiraishi, Y., ... & Gotoh, K. (2016). Whole-genome mutational landscape and characterization of noncoding and structural mutations in liver cancer. Nature genetics, 48(5), 500. (PMID: 27064257, See Figure 2b)
  5. Chang, J., Tan, W., Ling, Z., Xi, R., Shao, M., Chen, M., ... & Xia, Y. (2017). Genomic analysis of oesophageal squamous-cell carcinoma identifies alcohol drinking-related mutation signature and genomic alterations. Nature communications, 8, 15290. (PMID: 28548104, See Figure 1c)


v1.0.2 (2020-07-28)


Mr. LI Hechen (GitHub)
Miss. LI Shiying (GitHub)


Dr. JIA Wenlong (Scholar, ORCID, GitHub)



  • add samples hierarchical clustering.
  • allow to flip tree by clicking node.
  • accept the scientific notation.


  • add the light theme.


  • initial functions implemented.