Control of a neuronal morphology program by an RNA-binding zinc finger protein, Unkempt.

Abstract:

:Cellular morphology is an essential determinant of cellular function in all kingdoms of life, yet little is known about how cell shape is controlled. Here we describe a molecular program that controls the early morphology of neurons through a metazoan-specific zinc finger protein, Unkempt. Depletion of Unkempt in mouse embryos disrupts the shape of migrating neurons, while ectopic expression confers neuronal-like morphology to cells of different nonneuronal lineages. We found that Unkempt is a sequence-specific RNA-binding protein and identified its precise binding sites within coding regions of mRNAs linked to protein metabolism and trafficking. RNA binding is required for Unkempt-induced remodeling of cellular shape and is directly coupled to a reduced production of the encoded proteins. These findings link post-transcriptional regulation of gene expression with cellular shape and have general implications for the development and disease of multicellular organisms.

journal_name

Genes Dev

journal_title

Genes & development

authors

Murn J,Zarnack K,Yang YJ,Durak O,Murphy EA,Cheloufi S,Gonzalez DM,Teplova M,Curk T,Zuber J,Patel DJ,Ule J,Luscombe NM,Tsai LH,Walsh CA,Shi Y

doi

10.1101/gad.258483.115

subject

Has Abstract

pub_date

2015-03-01 00:00:00

pages

501-12

issue

5

eissn

0890-9369

issn

1549-5477

pii

29/5/501

journal_volume

29

pub_type

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