Troubleshooters that block cancer (BBC)

[eppur_se_muova]

Scientists have shown how a family of "limpet-like" proteins play a crucial role in repairing the DNA damage which can lead to cancer.

They hope the finding could pave the way for a new type of drug which could help kill cancer cells, and promote production of healthy replacements.

The proteins seem to have a remarkable ability to zero in on damaged areas.

The breakthrough, uncovered independently by two teams, appears in the journal Nature.

The family of Small Ubiquitin-like Modifier (SUMO) proteins track down sites in the body where DNA damage has occurred.
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more: http://news.bbc.co.uk/2/hi/health/8426412.stm

[Tumbulu]

1. so do you think these proteins are produced by the body

and if so what are the necessary building blocks. I could not figure out from reading the article where the SUMO's originate.