NCBI Accession #
NP_180201.1
NCBI GenBank Nucleotide #
NM_128190.3
NCBI Official Full Name
Leucine-rich receptor-like protein kinase family protein
NCBI Official Synonym Symbols
ERECTA; QRP1; QUANTITATIVE RESISTANCE TO PLECTOSPHAERELLA 1; T1D16.3; T1D16_3
NCBI Protein Information
Leucine-rich receptor-like protein kinase family protein
NCBI Summary
Homologous to receptor protein kinases. Involved in specification of organs originating from the shoot apical meristem. Contains a cytoplasmic protein kinase catalytic domain, a transmembrane region, and an extracellular leucine-rich repeat. ER has been identified as a quantitative trait locus for transpiration efficiency by influencing epidermal and mesophyll development, stomatal density and porosity of leaves. It has been implicated in resistance to the bacterium Ralstonia solanacearum and to the necrotrophic fungus Plectosphaerella cucumerina. Together with ERL1 and ERL2, ER governs the initial decision of protodermal cells to either divide proliferatively to produce pavement cells or divide asymmetrically to generate stomatal complexes.
UniProt Protein Name
LRR receptor-like serine/threonine-protein kinase ERECTA
UniProt Synonym Protein Names
Protein QUANTITATIVE RESISTANCE TO PLECTOSPHAERELLA 1; Protein QUANTITATIVE RESISTANCE TO RALSTONIA SOLANACEARUM 1; Protein TRANSPIRATION EFFICIENCY 1
UniProt Primary Accession #
Q42371
UniProt Secondary Accession #
Q56WZ3; A5YYA0; A5YYB1
UniProt Related Accession #
Q42371
UniProt Comments
Receptor kinase that, together with ERL1 and ERL2, regulates aerial architecture, including inflorescence (e.g. shoot apical meristem-originating organ shape, elongation of the internode and pedicels, and adaxial-abaxial polarity), and stomatal patterning (e.g. density and clustering), probably by tuning cell division and expansion. Redundantly involved with ERL1 in procambial development regulation. Forms a functional ligand-receptor pair with EPF2 (AC Q8LC53) (PubMed:22241782). Modulates plant transpiration efficiency by controlling stomatal density, leaf photosynthetic capacity, epidermal cell expansion, mesophyll cell proliferation and cell-cell contact. A phloem-specific expression of ER is sufficient for proper inflorescence architecture (PubMed:22474391). Probable major trait regulating canalization (maintenance of phenotype despite varying environment) in many aspect of the plant physiology (e.g. plant morphology, light-dependent leaves number, branch number, flowering time, phytate and mineral concentrations) by transducing microenvironmental variation into phenotypic differentiation (ecological amplifier). May maintain development integrity in heat stress conditions. Regulates cell wall composition and structure. Confers resistance to the pathogenic bacteria Ralstonia solanacearum and to the necrotrophic fungi Plectosphaerella cucumerina and Pythium irregulare, and required for callose deposition upon infection. Resistance to P.cucumerina seems cell wall-mediated. Forms a constitutive complex with TMM involved in the recognition of the stomatal regulatory peptides EPF1, EPF2 and EPFL9/STOMAGEN (PubMed:28536146).