Crowdsourcing yields a new standard for kinks in protein helices.

Kinks are functionally important structural features found in the α-helices of proteins. Structurally, they are points at which a helix abruptly changes direction. Current kink definition and identification methods often disagree with one another. Here we describe a crowdsourcing approach to obtain...

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Main Authors: Wilman, H, Ebejer, J, Shi, J, Deane, C, Knapp, B
Format: Journal article
Language:English
Published: American Chemical Society 2014
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author Wilman, H
Ebejer, J
Shi, J
Deane, C
Knapp, B
author_facet Wilman, H
Ebejer, J
Shi, J
Deane, C
Knapp, B
author_sort Wilman, H
collection OXFORD
description Kinks are functionally important structural features found in the α-helices of proteins. Structurally, they are points at which a helix abruptly changes direction. Current kink definition and identification methods often disagree with one another. Here we describe a crowdsourcing approach to obtain a reliable gold standard set of kinks. Using an online interface, we collected more than 10,000 classifications of 300 helices into straight, curved, or kinked categories. We found that participants were better at discriminating between straight and not-straight helices than between kinked and curved helices. Surprisingly, more obvious kinks were not necessarily identified as more localized within the helix. We present a set of 252 helices where more than 50% of the participants agree on a classification. This set can be used as a reliable gold standard to develop, train, and compare computational methods. An interactive visualization of the results is available online at http://opig.stats.ox.ac.uk/webapps/ahah/php/experiment_results.php .
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spelling oxford-uuid:51aed54b-52ab-4052-8d9a-14ed5fd95c1a2022-03-26T16:21:11ZCrowdsourcing yields a new standard for kinks in protein helices.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:51aed54b-52ab-4052-8d9a-14ed5fd95c1aEnglishSymplectic Elements at OxfordAmerican Chemical Society2014Wilman, HEbejer, JShi, JDeane, CKnapp, BKinks are functionally important structural features found in the α-helices of proteins. Structurally, they are points at which a helix abruptly changes direction. Current kink definition and identification methods often disagree with one another. Here we describe a crowdsourcing approach to obtain a reliable gold standard set of kinks. Using an online interface, we collected more than 10,000 classifications of 300 helices into straight, curved, or kinked categories. We found that participants were better at discriminating between straight and not-straight helices than between kinked and curved helices. Surprisingly, more obvious kinks were not necessarily identified as more localized within the helix. We present a set of 252 helices where more than 50% of the participants agree on a classification. This set can be used as a reliable gold standard to develop, train, and compare computational methods. An interactive visualization of the results is available online at http://opig.stats.ox.ac.uk/webapps/ahah/php/experiment_results.php .
spellingShingle Wilman, H
Ebejer, J
Shi, J
Deane, C
Knapp, B
Crowdsourcing yields a new standard for kinks in protein helices.
title Crowdsourcing yields a new standard for kinks in protein helices.
title_full Crowdsourcing yields a new standard for kinks in protein helices.
title_fullStr Crowdsourcing yields a new standard for kinks in protein helices.
title_full_unstemmed Crowdsourcing yields a new standard for kinks in protein helices.
title_short Crowdsourcing yields a new standard for kinks in protein helices.
title_sort crowdsourcing yields a new standard for kinks in protein helices
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