PAT — Nicotiana attenuata

Summary

A4A49_38038 (PAT, NaPAT) in coyote tobacco (Nicotiana attenuata) encodes a ubiquitin-60S ribosomal protein L40, a fusion protein that combines a ubiquitin domain with a ribosomal eL40 domain. The gene product is associated with histone methylase activity, core promoter and cis-regulatory region sequence-specific DNA binding, thiol-dependent deubiquitinase activity, and structural ribosome constituent function. It is linked to diverse biological processes including modification-dependent proteolysis, cellular response to salicylate, regulation of abscisic acid anabolism, stomatal lineage progression, seed dormancy, endosperm development, trichome branching, and activation of defense against bacteria and oomycetes. Associations with agronomic traits include leaf necrosis, chlorophyll content, biomass yield, plant height, flowering time, seed dormancy, pollen fertility, root mass density, shoot branching, and responses to temperature stress, salinity, and disease. The protein localizes to the ribosome, cytosolic large ribosomal subunit, endosomes, and the ESCRT I complex. Related genes in other species are linked to salt and drought tolerance, cell proliferation, and seed size.