How good are protein disorder prediction programs actually?
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How good are protein disorder prediction programs actually?

How good are protein disorder prediction programs actually?

Unfortunately, it is challenging and time-consuming to characterie the structural propensities of polypeptides experimentally, and therefore bioinformatics methods for predicting protein disorder from sequence are indispensable. Over recent years many bioinformaticians have therefore constructed algorithms to differentiate peptide sequences that will fold from those that do not, and these algorithms can be based on various 'features', derived from physicochemical parameters (like charge or hydrophobicity of an amino acid) as well as looking at evolutionary relatedness. Now that many such prediction programs have become available, it is of obvious value to have some kind of benchmark to validate and test the predictions. To resolve this quandary, Nielsen and Mulder generated and validated a representative experimental benchmarking set of site-specific and continuous disorder, using deposited NMR chemical shift data for more than a hundred selected proteins.

They then analysed the performance of 26 widely-used disorder prediction methods and found that these vary noticeably.

The thorough comparison presented in their research will help protein scientists around the globe to make better informed choices about which programmes are be.

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