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Doctors may also try phototherapy, which stimulates cells to make skin pigment, but this option is not always easy to implement as it can be expensive and involves going into an office equipped with phototherapy devices multiple times a week, every week

Finally, an abnormal protein is cleaved into short peptide fragments, and the polyubiquitin chain is released and is trimmed into monomeric ubiquitin by deubiquitinating enzymes (DUBs) (Mevissen and Komander, 2017)

Subsequent isolation and characterisation identified the active factor as the tripeptide glycyl-L-histidyl-L-lysine in complex with copper(II)

Richards AM, Abu Kwaik Y, Lamont RJ