Intragenic L1 Insertion: One Possibility of Brain Disorder

Long interspersed nuclear element 1 (LINE1, L1) is a retrotransposon comprising ~17% of the human genome. A subset of L1s maintains the potential to mobilize and alter the genomic landscape, consequently contributing to the change in genome integrity and gene expression. L1 retrotransposition occurs...

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Main Authors: Ji-Hoon Son, Hyunsu Do, Jinju Han
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/12/9/1425
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author Ji-Hoon Son
Hyunsu Do
Jinju Han
author_facet Ji-Hoon Son
Hyunsu Do
Jinju Han
author_sort Ji-Hoon Son
collection DOAJ
description Long interspersed nuclear element 1 (LINE1, L1) is a retrotransposon comprising ~17% of the human genome. A subset of L1s maintains the potential to mobilize and alter the genomic landscape, consequently contributing to the change in genome integrity and gene expression. L1 retrotransposition occurs in the human brain regardless of disease status. However, in the brain of patients with various brain diseases, the expression level and copy number of L1 are significantly increased. In this review, we briefly introduce the methodologies applied to measure L1 mobility and identify genomic loci where new insertion of L1 occurs in the brain. Then, we present a list of genes disrupted by L1 transposition in the genome of patients with brain disorders. Finally, we discuss the association between genes disrupted by L1 and relative brain disorders.
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spelling doaj.art-2527a7fa322d45cfb3a839701c8631962023-11-23T17:23:57ZengMDPI AGLife2075-17292022-09-01129142510.3390/life12091425Intragenic L1 Insertion: One Possibility of Brain DisorderJi-Hoon Son0Hyunsu Do1Jinju Han2Graduate School of Medical Science and Engineering, Korea Advanced Institute for Science and Technology (KAIST), Daejeon 34141, KoreaGraduate School of Medical Science and Engineering, Korea Advanced Institute for Science and Technology (KAIST), Daejeon 34141, KoreaGraduate School of Medical Science and Engineering, Korea Advanced Institute for Science and Technology (KAIST), Daejeon 34141, KoreaLong interspersed nuclear element 1 (LINE1, L1) is a retrotransposon comprising ~17% of the human genome. A subset of L1s maintains the potential to mobilize and alter the genomic landscape, consequently contributing to the change in genome integrity and gene expression. L1 retrotransposition occurs in the human brain regardless of disease status. However, in the brain of patients with various brain diseases, the expression level and copy number of L1 are significantly increased. In this review, we briefly introduce the methodologies applied to measure L1 mobility and identify genomic loci where new insertion of L1 occurs in the brain. Then, we present a list of genes disrupted by L1 transposition in the genome of patients with brain disorders. Finally, we discuss the association between genes disrupted by L1 and relative brain disorders.https://www.mdpi.com/2075-1729/12/9/1425LINE1 (L1)retrotransposonbrain disorder
spellingShingle Ji-Hoon Son
Hyunsu Do
Jinju Han
Intragenic L1 Insertion: One Possibility of Brain Disorder
Life
LINE1 (L1)
retrotransposon
brain disorder
title Intragenic L1 Insertion: One Possibility of Brain Disorder
title_full Intragenic L1 Insertion: One Possibility of Brain Disorder
title_fullStr Intragenic L1 Insertion: One Possibility of Brain Disorder
title_full_unstemmed Intragenic L1 Insertion: One Possibility of Brain Disorder
title_short Intragenic L1 Insertion: One Possibility of Brain Disorder
title_sort intragenic l1 insertion one possibility of brain disorder
topic LINE1 (L1)
retrotransposon
brain disorder
url https://www.mdpi.com/2075-1729/12/9/1425
work_keys_str_mv AT jihoonson intragenicl1insertiononepossibilityofbraindisorder
AT hyunsudo intragenicl1insertiononepossibilityofbraindisorder
AT jinjuhan intragenicl1insertiononepossibilityofbraindisorder