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Related Experiment Video

Updated: Jun 12, 2026

mRNA Interactome Capture from Plant Protoplasts

mRNA Interactome Capture from Plant Protoplasts

Published on: July 28, 2017

Structure and putative function of NFX1-like proteins in plants.

C Müssig¹, F Schröder, B Usadel

¹Universität Potsdam, Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm, Germany. muessig@uni-potsdam.de

Plant Biology (Stuttgart, Germany)

|June 5, 2010

Summary

This summary is machine-generated.

NFX1-like proteins, found across eukaryotes, possess a unique RING finger motif suggesting E3 ubiquitin ligase activity. Plant NFX1-like proteins likely regulate stress responses.

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Area of Science:

Molecular Biology
Genetics
Biochemistry

Background:

NFX1 transcription factors are a group of NFX1-type zinc finger proteins crucial for DNA binding.
NFX1-type zinc finger proteins are conserved across eukaryotes, from protists to plants and animals.
The review focuses on human NFX1 and Arabidopsis NFXL1 proteins.

Purpose of the Study:

To review the structure and putative roles of NFX1-like proteins.
To investigate the conserved features and phylogenetic relationships of NFX1-like proteins.
To explore the potential function of NFX1-like proteins as E3 ubiquitin ligases.

Main Methods:

Manual sequence analysis
Application of hidden Markov models (HMMs)
Phylogenetic analysis

Main Results:

NFX1-like proteins exhibit a conserved RING finger motif with a C(4)HC(3) zinc ligand signature.
Sequence analysis suggests these proteins function as E3 ubiquitin ligases.
Phylogenetic analysis identified distinct clades of NFX1-like proteins, with plant proteins forming two clades.

Conclusions:

The presence of two NFX1-like factors appears sufficient in flowering plants.
Arabidopsis NFX1-like proteins are hypothesized to fine-tune opposing biotic and abiotic stress response pathways.
NFX1-like proteins represent a conserved family with significant roles in eukaryotic gene regulation and stress response.