Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.

An amyloidogenic region (AR) in a protein sequence plays a significant role in protein aggregation and amyloid formation. We have investigated the sequence complexity of AR that is present in intrinsically disordered human proteins. More than 80% human proteins in the disordered protein databases (D...

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Main Authors: Swagata Das, Uttam Pal, Supriya Das, Khyati Bagga, Anupam Roy, Arpita Mrigwani, Nakul C Maiti
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24594841/pdf/?tool=EBI
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author Swagata Das
Uttam Pal
Supriya Das
Khyati Bagga
Anupam Roy
Arpita Mrigwani
Nakul C Maiti
author_facet Swagata Das
Uttam Pal
Supriya Das
Khyati Bagga
Anupam Roy
Arpita Mrigwani
Nakul C Maiti
author_sort Swagata Das
collection DOAJ
description An amyloidogenic region (AR) in a protein sequence plays a significant role in protein aggregation and amyloid formation. We have investigated the sequence complexity of AR that is present in intrinsically disordered human proteins. More than 80% human proteins in the disordered protein databases (DisProt+IDEAL) contained one or more ARs. With decrease of protein disorder, AR content in the protein sequence was decreased. A probability density distribution analysis and discrete analysis of AR sequences showed that ∼8% residue in a protein sequence was in AR and the region was in average 8 residues long. The residues in the AR were high in sequence complexity and it seldom overlapped with low complexity regions (LCR), which was largely abundant in disorder proteins. The sequences in the AR showed mixed conformational adaptability towards α-helix, β-sheet/strand and coil conformations.
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spelling doaj.art-c19c22ef9cf44656a643ca17c93af8ae2022-12-21T22:42:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e8978110.1371/journal.pone.0089781Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.Swagata DasUttam PalSupriya DasKhyati BaggaAnupam RoyArpita MrigwaniNakul C MaitiAn amyloidogenic region (AR) in a protein sequence plays a significant role in protein aggregation and amyloid formation. We have investigated the sequence complexity of AR that is present in intrinsically disordered human proteins. More than 80% human proteins in the disordered protein databases (DisProt+IDEAL) contained one or more ARs. With decrease of protein disorder, AR content in the protein sequence was decreased. A probability density distribution analysis and discrete analysis of AR sequences showed that ∼8% residue in a protein sequence was in AR and the region was in average 8 residues long. The residues in the AR were high in sequence complexity and it seldom overlapped with low complexity regions (LCR), which was largely abundant in disorder proteins. The sequences in the AR showed mixed conformational adaptability towards α-helix, β-sheet/strand and coil conformations.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24594841/pdf/?tool=EBI
spellingShingle Swagata Das
Uttam Pal
Supriya Das
Khyati Bagga
Anupam Roy
Arpita Mrigwani
Nakul C Maiti
Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
PLoS ONE
title Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
title_full Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
title_fullStr Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
title_full_unstemmed Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
title_short Sequence complexity of amyloidogenic regions in intrinsically disordered human proteins.
title_sort sequence complexity of amyloidogenic regions in intrinsically disordered human proteins
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24594841/pdf/?tool=EBI
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