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Xenopus laevis

ABSTRACT: Regulation of kidney field specification by transcriptional regulation of microRNAs

PROVIDER: PRJNA391724 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5753210.fastq.gz	Fastqsanger.gz
	SRR5753211.fastq.gz	Fastqsanger.gz
	SRR5753209.fastq.gz	Fastqsanger.gz

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Xenopus A6 cells nanoLC-MS/MS - The Lhx1-Ldb1 complex interacts with Furry to regulate microRNA expression during pronephric kidney development

Project description:The transcriptional events driving specification of the kidney have been well characterized. However, it remains undetermined how initial kidney field size is established, patterned, and proportioned. Lhx1 is a transcription factor expressed in the kidney anlage and is required for specification of the kidney field, but few Lhx1 interacting cofactors or downstream targets have been identified. By tandem-affinity purification, we isolated Furry (FRY), a multifunctional protein that acts as a transcriptional co-repressor of microRNAs. We found that Xenopus embryos depleted of fry exhibit loss of the kidney field, phenocopying the lhx1 depleted animals. In addition, we demonstrated synergism between Fry and Lhx1, identified candidate microRNAs regulated by the pair, and confirmed these microRNA clusters influence specification of the kidney field. Therefore, our data shows that a tissue-specific transcription factor, Lhx1, interacts with a broadly expressed microRNA repressor, Fry, to establish the kidney field.

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Regulation of kidney field specification by transcriptional regulation of microRNAs

Project description:The transcriptional events driving specification of the kidney field have been well characterized. However, it remains unknown how the initial field size is established, patterned, and proportioned. Lhx1 is a transcription factor expressed in the kidney anlage and is required for specification of the kidney field, but few Lhx1 interacting cofactors or downstream targets have been identified. By tandem-affinity purification, we isolated Furry (FRY), a multifunctional protein that acts as a transcriptional co-repressor of microRNAs. We found that Xenopus embryos depleted of fry exhibit loss of the kidney field, phenocopying the lhx1 depleted animals. In addition, we demonstrated a synergism between Fry and Lhx1, identified candidate microRNAs regulated by the protein pair, and show at least two microRNA clusters influence specification of the kidney field. Therefore, our data shows that a tissue-specific transcription factor, Lhx1, can interact with a broadly expressed microRNA repressor, Fry, to establish the kidney field.

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