The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome

Abstract Kohlschutter-Tönz syndrome (KTS) is a rare autosomal-recessive disorder of childhood onset characterized by global developmental delay, spasticity, epilepsy, and amelogenesis imperfecta. Rogdi, an essential protein, is highly conserved across metazoans, and mutations in Rogdi are linked to...

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Autores principales: Hakbong Lee, Hanbin Jeong, Joonho Choe, Youngsoo Jun, Chunghun Lim, Changwook Lee
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Publicado: Nature Portfolio 2017
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spelling oai:doaj.org-article:c8a95ac736af4d388d56fe11595dcb962021-12-02T15:05:32ZThe crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome10.1038/s41598-017-04120-x2045-2322https://doaj.org/article/c8a95ac736af4d388d56fe11595dcb962017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04120-xhttps://doaj.org/toc/2045-2322Abstract Kohlschutter-Tönz syndrome (KTS) is a rare autosomal-recessive disorder of childhood onset characterized by global developmental delay, spasticity, epilepsy, and amelogenesis imperfecta. Rogdi, an essential protein, is highly conserved across metazoans, and mutations in Rogdi are linked to KTS. However, how certain mutations in Rogdi abolish its physiological functions and cause KTS is not known. In this study, we determined the crystal structure of human Rogdi protein at atomic resolution. Rogdi forms a novel elongated curved structure comprising the α domain, a leucine-zipper-like four-helix bundle, and a characteristic β-sheet domain. Within the α domain, the N-terminal H1 helix (residues 19–45) pairs with the C-terminal H6 helix (residues 252–287) in an antiparallel manner, indicating that the integrity of the four-helix bundle requires both N- and C-terminal residues. The crystal structure, in conjunction with biochemical data, indicates that the α domain might undergo a conformational change and provide a structural platform for protein–protein interactions. Disruption of the four-helix bundle by mutation results in significant destabilization of the structure. This study provides structural insights into how certain mutations in Rogdi affect its structure and cause KTS, which has important implications for the development of pharmaceutical agents against this debilitating neurological disease.Hakbong LeeHanbin JeongJoonho ChoeYoungsoo JunChunghun LimChangwook LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Hakbong Lee
Hanbin Jeong
Joonho Choe
Youngsoo Jun
Chunghun Lim
Changwook Lee
The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
description Abstract Kohlschutter-Tönz syndrome (KTS) is a rare autosomal-recessive disorder of childhood onset characterized by global developmental delay, spasticity, epilepsy, and amelogenesis imperfecta. Rogdi, an essential protein, is highly conserved across metazoans, and mutations in Rogdi are linked to KTS. However, how certain mutations in Rogdi abolish its physiological functions and cause KTS is not known. In this study, we determined the crystal structure of human Rogdi protein at atomic resolution. Rogdi forms a novel elongated curved structure comprising the α domain, a leucine-zipper-like four-helix bundle, and a characteristic β-sheet domain. Within the α domain, the N-terminal H1 helix (residues 19–45) pairs with the C-terminal H6 helix (residues 252–287) in an antiparallel manner, indicating that the integrity of the four-helix bundle requires both N- and C-terminal residues. The crystal structure, in conjunction with biochemical data, indicates that the α domain might undergo a conformational change and provide a structural platform for protein–protein interactions. Disruption of the four-helix bundle by mutation results in significant destabilization of the structure. This study provides structural insights into how certain mutations in Rogdi affect its structure and cause KTS, which has important implications for the development of pharmaceutical agents against this debilitating neurological disease.
format article
author Hakbong Lee
Hanbin Jeong
Joonho Choe
Youngsoo Jun
Chunghun Lim
Changwook Lee
author_facet Hakbong Lee
Hanbin Jeong
Joonho Choe
Youngsoo Jun
Chunghun Lim
Changwook Lee
author_sort Hakbong Lee
title The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
title_short The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
title_full The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
title_fullStr The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
title_full_unstemmed The crystal structure of human Rogdi provides insight into the causes of Kohlschutter-Tönz Syndrome
title_sort crystal structure of human rogdi provides insight into the causes of kohlschutter-tönz syndrome
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/c8a95ac736af4d388d56fe11595dcb96
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