Ezrin/radixin/moesin (IPR011174)

Short name: ERM

Overlapping homologous superfamilies

Family relationships


This group represents an ezrin/radixin/moesin. The ERM family consists of three closely-related proteins, ezrin, radixin and moesin [PMID: 9048483]. Ezrin was first identified as a constituent of microvilli [PMID: 6885906], radixin as a barbed, end-capping actin-modulating protein from isolated junctional fractions [PMID: 2500445], and moesin as a heparin binding protein [PMID: 3046603]. A tumour suppressor molecule responsible for neurofibromatosis type 2 (NF2) is highly similar to ERM proteins and has been designated merlin (moesin-ezrin-radixin-like protein). ERM molecules contain 3 domains, an N-terminal globular domain; an extended alpha-helical domain; and a charged C-terminal domain [PMID: 9048483]. Ezrin, radixin and merlin also contain a polyproline region between the helical and C-terminal domains. The N-terminal domain is highly conserved, and is also found in merlin, band 4.1 proteins and members of the band 4.1 superfamily. ERM proteins crosslink actin filaments with plasma membranes. They co-localise with CD44 at actin filament-plasma membrane interaction sites, associating with CD44 via their N-terminal domains and with actin filaments via their C-terminal domains [PMID: 9048483].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0003779 actin binding

Cellular Component

No terms assigned in this category.

Contributing signatures

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