RT Journal Article SR Electronic T1 New insight into plant intramembrane proteases JF bioRxiv FD Cold Spring Harbor Laboratory SP 101204 DO 10.1101/101204 A1 Małgorzata Adamiec A1 Lucyna Misztal A1 Robert Luciński YR 2017 UL http://biorxiv.org/content/early/2017/01/18/101204.abstract AB The process of proteolysis is a factor involved in control of the proper development of the plant and its responses to a changeable environment. Recent research has shown that proteases are not only engaged in quality control and protein turnover processes but also participate in the process which is known as regulated membrane proteolysis (RIP). Four families of integral membrane proteases, belonging to three different classes, have been identified: serine intramembrane proteases known as rhomboid proteases, site-2 proteases belonging to zinc metalloproteases, and two families of aspartic proteases: presenilins and signal peptide peptidases. The studies concerning intramembrane proteases in higher plants are, however, focused on Arabidopsis thaliana. The aim of the study was to identify and retrieve protein sequences of intramembrane protease homologs from other higher plant species and perform a detailed analysis of their primary sequences as well as their phylogenetic relations. This approach allows us to indicate several previously undescribed issues which may provide important directions for further research.