Q9PU45
Gene name |
RDX |
Protein name |
Radixin |
Names |
|
Species |
Gallus gallus (Chicken) |
KEGG Pathway |
gga:395511 |
EC number |
|
Protein Class |
|

Descriptions
(Annotation based on sequence homology with P26038)
MSN is a moesin protein and belongs to the ezrin-radixin-moesin (ERM) protein family, directly involved in the cytoskeleton-membrane crosslinking. Functional N-terminal FERM domain of ERM attaches to the membrane by binding specific membrane proteins while the last 34 residues of the C-terminal tail domain bind actin filaments. The autoinhibitory domain is positions at the C-terminal tail domain of ERM, where FERM domain of ERM is bound tightly via phosphotyrosine binding (PTB), pleckstrin homology (PH), and Enabled/VASP Homology 1 (EVH1) domains, thus masking the binding sites for other molecules. ERM is activated through phosphorylation at Thr558 weakening the FERM/tail binding and, unmasks the binding sites of membrane protein and actin filaments in the presence of phospholipids.
Autoinhibitory domains (AIDs)
Target domain |
|
Relief mechanism |
|
Assay |
cis-regPred |
Accessory elements
No accessory elements
Autoinhibited structure

Activated structure

1 structures for Q9PU45
Entry ID | Method | Resolution | Chain | Position | Source |
---|---|---|---|---|---|
AF-Q9PU45-F1 | Predicted | AlphaFoldDB |
No variants for Q9PU45
Variant ID(s) | Position | Change | Description | Diseaes Association | Provenance |
---|---|---|---|---|---|
No variants for Q9PU45 |
No associated diseases with Q9PU45
10 regional properties for Q9PU45
Type | Name | Position | InterPro Accession |
---|---|---|---|
domain | FERM domain | 5 - 295 | IPR000299 |
domain | Ezrin/radixin/moesin, C-terminal | 508 - 583 | IPR011259 |
domain | FERM, N-terminal | 9 - 70 | IPR018979 |
domain | FERM, C-terminal PH-like domain | 210 - 299 | IPR018980 |
conserved_site | FERM conserved site | 58 - 88 | IPR019747-1 |
conserved_site | FERM conserved site | 176 - 205 | IPR019747-2 |
domain | FERM central domain | 91 - 206 | IPR019748 |
domain | Band 4.1 domain | 1 - 206 | IPR019749 |
domain | ERM family, FERM domain C-lobe | 200 - 296 | IPR041789 |
domain | Ezrin/radixin/moesin, alpha-helical domain | 337 - 456 | IPR046810 |
7 GO annotations of cellular component
Name | Definition |
---|---|
adherens junction | A cell-cell junction composed of the epithelial cadherin-catenin complex. The epithelial cadherins, or E-cadherins, of each interacting cell extend through the plasma membrane into the extracellular space and bind to each other. The E-cadherins bind to catenins on the cytoplasmic side of the membrane, where the E-cadherin-catenin complex binds to cytoskeletal components and regulatory and signaling molecules. |
apical part of cell | The region of a polarized cell that forms a tip or is distal to a base. For example, in a polarized epithelial cell, the apical region has an exposed surface and lies opposite to the basal lamina that separates the epithelium from other tissue. |
cytoplasm | The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
cytoskeleton | A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles. |
filopodium | Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft. |
microvillus | Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells. |
plasma membrane | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |
2 GO annotations of molecular function
Name | Definition |
---|---|
actin binding | Binding to monomeric or multimeric forms of actin, including actin filaments. |
cell adhesion molecule binding | Binding to a cell adhesion molecule. |
5 GO annotations of biological process
Name | Definition |
---|---|
actin filament capping | The binding of a protein or protein complex to the end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits. |
positive regulation of early endosome to late endosome transport | Any process that activates or increases the frequency, rate or extent of early endosome to late endosome transport. |
positive regulation of protein localization to early endosome | Any process that activates or increases the frequency, rate or extent of protein localization to early endosome. |
regulation of cell shape | Any process that modulates the surface configuration of a cell. |
regulation of organelle assembly | Any process that modulates the frequency, rate or extent of organelle assembly. |
21 homologous proteins in AiPD
UniProt AC | Gene Name | Protein Name | Species | Evidence Code |
---|---|---|---|---|
P31976 | EZR | Ezrin | Bos taurus (Bovine) | PR |
Q2HJ49 | MSN | Moesin | Bos taurus (Bovine) | PR |
Q32LP2 | RDX | Radixin | Bos taurus (Bovine) | SS |
Q24564 | Mer | Moesin/ezrin/radixin homolog 2 | Drosophila melanogaster (Fruit fly) | SS |
P46150 | Moe | Moesin/ezrin/radixin homolog 1 | Drosophila melanogaster (Fruit fly) | SS |
P35240 | NF2 | Merlin | Homo sapiens (Human) | EV |
P26038 | MSN | Moesin | Homo sapiens (Human) | EV |
P15311 | EZR | Ezrin | Homo sapiens (Human) | EV |
Q3KP66 | INAVA | Innate immunity activator protein | Homo sapiens (Human) | PR |
P35241 | RDX | Radixin | Homo sapiens (Human) | SS |
A2AD83 | Frmd7 | FERM domain-containing protein 7 | Mus musculus (Mouse) | PR |
P26040 | Ezr | Ezrin | Mus musculus (Mouse) | SS |
P46662 | Nf2 | Merlin | Mus musculus (Mouse) | SS |
P26041 | Msn | Moesin | Mus musculus (Mouse) | SS |
P26043 | Rdx | Radixin | Mus musculus (Mouse) | SS |
P26042 | MSN | Moesin | Sus scrofa (Pig) | PR |
P26044 | RDX | Radixin | Sus scrofa (Pig) | SS |
Q63648 | Nf2 | Merlin | Rattus norvegicus (Rat) | SS |
P31977 | Ezr | Ezrin | Rattus norvegicus (Rat) | SS |
O35763 | Msn | Moesin | Rattus norvegicus (Rat) | SS |
Q6Q413 | nf2b | NF2, moesin-ezrin-radixin-like | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
10 | 20 | 30 | 40 | 50 | 60 |
MPKPINVRVT | TMDAELEFAI | QPNTTGKQLF | DQVVKTVGLR | EVWFFGLQYV | DSKGYSTWLK |
70 | 80 | 90 | 100 | 110 | 120 |
LNKKVTQQDV | RKENPLQFKF | RAKFFPEDVS | EELIQEITQR | LFFLQVKEAI | LNDEIYCPPE |
130 | 140 | 150 | 160 | 170 | 180 |
TAVLLASYAV | QSKYGDYNKE | IHKLGYLAND | RLLPQRVLEQ | HKLTKEQWEE | RIQNWHEEHR |
190 | 200 | 210 | 220 | 230 | 240 |
GMLREDSMME | YLKIAQDLEM | YGVNYFEIKN | KKGTELWLGV | DALGLNIYEH | DDKLTPKIGF |
250 | 260 | 270 | 280 | 290 | 300 |
PWSEIRNISF | NDKKFVIKPI | DKKAPDFVFY | APRLRINKRI | LALCMGNHEL | YMRRRKPDTI |
310 | 320 | 330 | 340 | 350 | 360 |
EVQQMKAQAR | EEKHQKQLER | AQLENEKKKR | EIAEKEKERI | EREKEELMER | LRQIEEQTMK |
370 | 380 | 390 | 400 | 410 | 420 |
AQKELEEQTR | RALELDQERK | RAKEEAERLE | KERRAAEEAK | AALAKQAADQ | MKNQEQLAAE |
430 | 440 | 450 | 460 | 470 | 480 |
LAEFTAKIAL | LEEAKKKKEE | EASEWQHKAF | AAQEDLEKTK | EELKSVMSAP | PPPPPPPVIP |
490 | 500 | 510 | 520 | 530 | 540 |
PTENEHDEHD | ENNAEASAEL | SSDGVMNHRS | EEERVTETQK | NERVKKQLQA | LSSELAQARD |
550 | 560 | 570 | 580 | ||
ETKKTQNDVL | HAENVKAGRG | KYKTLRQIRQ | GNTKQRIDEF | EAM |