Intricate knots in proteins: Function and evolution.

Our investigation of knotted structures in the Protein Data Bank reveals the most complicated knot discovered to date. We suggest that the occurrence of this knot in a human ubiquitin hydrolase might be related to the role of the enzyme in protein degradation. While knots are usually preserved among...

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Bibliographic Details
Main Authors: Peter Virnau, Leonid A Mirny, Mehran Kardar
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2006-09-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.0020122
Description
Summary:Our investigation of knotted structures in the Protein Data Bank reveals the most complicated knot discovered to date. We suggest that the occurrence of this knot in a human ubiquitin hydrolase might be related to the role of the enzyme in protein degradation. While knots are usually preserved among homologues, we also identify an exception in a transcarbamylase. This allows us to exemplify the function of knots in proteins and to suggest how they may have been created.
ISSN:1553-734X
1553-7358