ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells

The novel zinc finger protein 121 (ZNF121) has been demonstrated to physically and functionally associate with the MYC oncoprotein to regulate cell proliferation and likely breast cancer development. To further understand how ZNF121 functions in cell proliferation and carcinogenesis, we identified a...

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Main Authors: Ang Luo, Kailun Zhang, Yanxia Zhao, Zhengmao Zhu, Liya Fu, Jin‐Tang Dong
Format: Article
Language:English
Published: Wiley 2018-12-01
Series:FEBS Open Bio
Subjects:
Online Access:https://doi.org/10.1002/2211-5463.12530
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author Ang Luo
Kailun Zhang
Yanxia Zhao
Zhengmao Zhu
Liya Fu
Jin‐Tang Dong
author_facet Ang Luo
Kailun Zhang
Yanxia Zhao
Zhengmao Zhu
Liya Fu
Jin‐Tang Dong
author_sort Ang Luo
collection DOAJ
description The novel zinc finger protein 121 (ZNF121) has been demonstrated to physically and functionally associate with the MYC oncoprotein to regulate cell proliferation and likely breast cancer development. To further understand how ZNF121 functions in cell proliferation and carcinogenesis, we identified and characterized the interaction of ZNF121 with zinc finger and BRCA1‐interacting protein with a KRAB domain 1 (ZBRK1), a breast and ovarian cancer susceptibility protein 1 (BRCA1)‐interacting protein, using the yeast two‐hybrid assay and other approaches. We also found that ZNF121 bound to BRCA1. Functionally, ZFN121 suppressed the expression of ANG1 and HMGA2, two common downstream targets of ZBRK1 and BRCA1. Interestingly, ZNF121 also regulated the expression of BRCA1 and ZBRK1. These findings suggest that ZNF121 is likely a member of the BRCA1/CtIP/ZBRK1 repressor complex that plays a role in breast cancer.
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spelling doaj.art-3dbdc0b23ae1485198e8e5384f4be5062023-03-14T13:06:01ZengWileyFEBS Open Bio2211-54632018-12-018121943195210.1002/2211-5463.12530ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cellsAng Luo0Kailun Zhang1Yanxia Zhao2Zhengmao Zhu3Liya Fu4Jin‐Tang Dong5Department of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaDepartment of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaDepartment of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaDepartment of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaDepartment of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaDepartment of Genetics and Cell Biology Nankai University College of Life Sciences Tianjin ChinaThe novel zinc finger protein 121 (ZNF121) has been demonstrated to physically and functionally associate with the MYC oncoprotein to regulate cell proliferation and likely breast cancer development. To further understand how ZNF121 functions in cell proliferation and carcinogenesis, we identified and characterized the interaction of ZNF121 with zinc finger and BRCA1‐interacting protein with a KRAB domain 1 (ZBRK1), a breast and ovarian cancer susceptibility protein 1 (BRCA1)‐interacting protein, using the yeast two‐hybrid assay and other approaches. We also found that ZNF121 bound to BRCA1. Functionally, ZFN121 suppressed the expression of ANG1 and HMGA2, two common downstream targets of ZBRK1 and BRCA1. Interestingly, ZNF121 also regulated the expression of BRCA1 and ZBRK1. These findings suggest that ZNF121 is likely a member of the BRCA1/CtIP/ZBRK1 repressor complex that plays a role in breast cancer.https://doi.org/10.1002/2211-5463.12530BRCA1ZBRK1ZNF121
spellingShingle Ang Luo
Kailun Zhang
Yanxia Zhao
Zhengmao Zhu
Liya Fu
Jin‐Tang Dong
ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
FEBS Open Bio
BRCA1
ZBRK1
ZNF121
title ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
title_full ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
title_fullStr ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
title_full_unstemmed ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
title_short ZNF121 interacts with ZBRK1 and BRCA1 to regulate their target genes in mammary epithelial cells
title_sort znf121 interacts with zbrk1 and brca1 to regulate their target genes in mammary epithelial cells
topic BRCA1
ZBRK1
ZNF121
url https://doi.org/10.1002/2211-5463.12530
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