Ethylene receptor (IPR014525)

Short name: ETR

Overlapping homologous superfamilies

Family relationships



This entry represents hybrid ethylene sensor histidine kinases from plants, also known as ethylene receptors. It includes ETR1, ETR2, and EIN4 from Arabidopsis thaliana, all of which contain a receiver domain at the C terminus. ETR1 has His kinase activity, whereas ETR2 and EIN4 have Ser/Thr kinase activity [PMID: 29158332]. They are related to bacterial two-component regulators and act as a redundant negative regulator of ethylene signalling [PMID: 15703053].

GO terms

Biological Process

GO:0009723 response to ethylene

Molecular Function

GO:0051740 ethylene binding
GO:0038199 ethylene receptor activity
GO:0004672 protein kinase activity

Cellular Component

GO:0005789 endoplasmic reticulum membrane

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.