In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes

Huntington’s disease is a rare neurodegenerative and autosomal dominant disorder. HD is caused by a mutation in the gene coding for huntingtin (Htt). The result is the production of a mutant Htt with an abnormally long polyglutamine repeat that leads to pathological Htt aggregates. Although the stru...

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Main Authors: Valentina Brandi, Fabio Polticelli
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/6/3214
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author Valentina Brandi
Fabio Polticelli
author_facet Valentina Brandi
Fabio Polticelli
author_sort Valentina Brandi
collection DOAJ
description Huntington’s disease is a rare neurodegenerative and autosomal dominant disorder. HD is caused by a mutation in the gene coding for huntingtin (Htt). The result is the production of a mutant Htt with an abnormally long polyglutamine repeat that leads to pathological Htt aggregates. Although the structure of human Htt has been determined, albeit at low resolution, its functions and how they are performed are largely unknown. Moreover, there is little information on the structure and function of Htt in other organisms. The comparison of Htt homologs can help to understand if there is a functional conservation of domains in the evolution of Htt in eukaryotes. In this work, through a computational approach, Htt homologs from lower eukaryotes have been analysed, identifying ordered domains and modelling their structure. Based on the structural models, a putative function for most of the domains has been predicted. A putative <i>C. elegans</i> Htt-like protein has also been analysed following the same approach. The results obtained support the notion that this protein is a orthologue of human Htt.
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spelling doaj.art-13f59d5861044394be8c17480c390e882023-11-21T11:29:38ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-03-01226321410.3390/ijms22063214In Silico Analysis of Huntingtin Homologs in Lower EukaryotesValentina Brandi0Fabio Polticelli1Department of Sciences, Roma Tre University, 00146 Rome, ItalyDepartment of Sciences, Roma Tre University, 00146 Rome, ItalyHuntington’s disease is a rare neurodegenerative and autosomal dominant disorder. HD is caused by a mutation in the gene coding for huntingtin (Htt). The result is the production of a mutant Htt with an abnormally long polyglutamine repeat that leads to pathological Htt aggregates. Although the structure of human Htt has been determined, albeit at low resolution, its functions and how they are performed are largely unknown. Moreover, there is little information on the structure and function of Htt in other organisms. The comparison of Htt homologs can help to understand if there is a functional conservation of domains in the evolution of Htt in eukaryotes. In this work, through a computational approach, Htt homologs from lower eukaryotes have been analysed, identifying ordered domains and modelling their structure. Based on the structural models, a putative function for most of the domains has been predicted. A putative <i>C. elegans</i> Htt-like protein has also been analysed following the same approach. The results obtained support the notion that this protein is a orthologue of human Htt.https://www.mdpi.com/1422-0067/22/6/3214huntingtinmolecular modellingfunction prediction<i>Caenorhabditis elegans</i>
spellingShingle Valentina Brandi
Fabio Polticelli
In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
International Journal of Molecular Sciences
huntingtin
molecular modelling
function prediction
<i>Caenorhabditis elegans</i>
title In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
title_full In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
title_fullStr In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
title_full_unstemmed In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
title_short In Silico Analysis of Huntingtin Homologs in Lower Eukaryotes
title_sort in silico analysis of huntingtin homologs in lower eukaryotes
topic huntingtin
molecular modelling
function prediction
<i>Caenorhabditis elegans</i>
url https://www.mdpi.com/1422-0067/22/6/3214
work_keys_str_mv AT valentinabrandi insilicoanalysisofhuntingtinhomologsinlowereukaryotes
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