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Two zinc finger proteins with functions in mA writing interact with HAKAI. | LitMetric

Two zinc finger proteins with functions in mA writing interact with HAKAI.

Nat Commun

Plant Sciences Division, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK.

Published: March 2022

AI Article Synopsis

Article Abstract

The methyltransferase complex (mA writer), which catalyzes the deposition of N-methyladenosine (mA) in mRNAs, is highly conserved across most eukaryotic organisms, but its components and interactions between them are still far from fully understood. Here, using in vivo interaction proteomics, two HAKAI-interacting zinc finger proteins, HIZ1 and HIZ2, are discovered as components of the Arabidopsis mA writer complex. HAKAI is required for the interaction between HIZ1 and MTA (mRNA adenosine methylase A). Whilst HIZ1 knockout plants have normal levels of mA, plants in which it is overexpressed show reduced methylation and decreased lateral root formation. Mutant plants lacking HIZ2 are viable but have an 85% reduction in mA abundance and show severe developmental defects. Our findings suggest that HIZ2 is likely the plant equivalent of ZC3H13 (Flacc) of the metazoan mA-METTL Associated Complex.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8891334PMC
http://dx.doi.org/10.1038/s41467-022-28753-3DOI Listing

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