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ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE117214 | GEO | 2018/12/16

REPOSITORIES: GEO

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ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2.

Project description:Telomeres are nucleoprotein structures at the ends of linear chromosomes and present an essential feature for genome integrity. Vertebrate telomeres usually consist of hexameric TTAGGG repeats, however, in cells that use the alternative lengthening of telomeres (ALT) mechanism, variant repeat sequences are interspersed throughout telomeres. Previously, it was shown that NR2C/F transcription factors bind to TCAGGG variant repeats and contribute to telomere maintenance in ALT cells. While specific binders to other variant repeat sequences have been lacking to date, we here identify ZBTB10 as the first TTGGGG-binding protein and demonstrate direct binding via the two zinc fingers with affinity in the nanomolar range. Concomitantly, ZBTB10 co-localizes with a subset of telomeres in ALT-positive U2OS cells and interacts with TRF2/RAP1 via the N-terminal region of TRF2. Our data establishes ZBTB10 as a novel variant repeat binding protein at ALT telomeres.

| S-EPMC6393293 | biostudies-literature

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2

Project description:Telomeres are the ends of linear chromosomes and together with the shelterin complex present an essential feature for genome integrity. Vertebrate telomeres usually consist of hexameric TTAGGG repeats, however, in cells that use the alternative lengthening of telomeres (ALT) mechanism, variant repeat sequences are interspersed throughout telomeres. Previously, it was shown that NR2C/F transcription factors bind to TCAGGG variant repeats and contribute to telomere maintenance in ALT cells. While specific binders to other variant repeat sequences have been lacking to date, we here identify ZBTB10 as the first TTGGGG-binding protein and demonstrate direct binding via the two zinc fingers with affinity in the nanomolar range. Concomitantly, ZBTB10 co-localizes with a subset of telomeres in ALT-positive U2OS cells and interacts with TRF2/RAP1 via the N-terminal region of TRF2. Our data establishes ZBTB10 as a novel variant repeat-specific binding protein at ALT telomeres.

2018-12-17 | PXD010672 | Pride

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [RNA-Seq]

Project description:To study if ZBTB10 influences gene expression, we used CRISPR/Cas9 knockout HEK293 and U2OS cells to compare transcript levels between WT and KO.

2018-12-16 | GSE117212 | GEO

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [DNA-Seq validation of KO]

Project description:In order to investigate changes upon ZBTB10 depletion, we used CRISPR/Cas9 to induce a ZBTB10 knockout in HEK293 and U2OS cells.

2018-12-16 | GSE117213 | GEO

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2

Project description:ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2

| PRJNA481468 | ENA

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [RNA-Seq]

Project description:ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [RNA-Seq]

| PRJNA481471 | ENA

ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [DNA-Seq validation of KO]

Project description:ZBTB10 binds the telomeric variant repeat TTGGGG and interacts with TRF2 [DNA-Seq validation of KO]

| PRJNA481472 | ENA

repeat elements study in pluripotent stem cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-10-09 | E-GEOD-54726 | biostudies-arrayexpress

The human AlkB homologue 4 interacts with proteins associated with transcription

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-12-01 | E-GEOD-39135 | biostudies-arrayexpress

RAP1 protects from obesity, diabetes and metabolic syndrome through its extra telomeric role regulating gene expression

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-06-21 | E-GEOD-43174 | biostudies-arrayexpress

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