Radixin

RDX

Available structures

Ortholog search: PDBe RCSB

List of PDB id codes
1GC6, 1GC7, 1J19, 2D10, 2D11, 2D2Q, 2EMS, 2EMT, 2YVC, 2ZPY

Identifiers

Aliases

RDX, DFNB24, radixin

External IDs

MGI: 97887 HomoloGene: 37707 GeneCards: RDX

Gene ontology
Molecular function	• protein homodimerization activity • protein domain specific binding • ATPase binding • protein kinase A binding • cytoskeletal protein binding • protein binding • actin binding • poly(A) RNA binding • cadherin binding involved in cell-cell adhesion
Cellular component	• cytoplasm • membrane • focal adhesion • filopodium • ruffle • myelin sheath • plasma membrane • apical part of cell • stereocilium • extracellular fluid • microvillus • apical plasma membrane • cortical actin cytoskeleton • cleavage furrow • extracellular exosome • cytoskeleton • cell periphery • lamellipodium • extrinsic component of membrane • cell-cell adherens junction • midbody • T-tubule • cell tip
Biological process	• regulation of cell size • establishment of endothelial barrier • microvillus assembly • regulation of organelle assembly • establishment of protein localization • positive regulation of cell migration • regulation of GTPase activity • positive regulation of cellular protein catabolic process • positive regulation of G1/S transition of mitotic cell cycle • negative regulation of homotypic cell-cell adhesion • regulation of actin filament bundle assembly • positive regulation of gene expression • negative regulation of GTPase activity • negative regulation of adherens junction organization • apical protein localization • actin filament capping • cellular response to thyroid hormone stimulus • regulation of cell shape • protein kinase A signaling • regulation of ruffle assembly • positive regulation of protein localization to early endosome • positive regulation of early endosome to late endosome transport • negative regulation of cell size • establishment of protein localization to plasma membrane • regulation of Rap protein signal transduction • cellular response to platelet-derived growth factor stimulus • cell-cell adhesion • barbed-end actin filament capping
Sources:Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

Entrez


5962


19684

Ensembl


ENSG00000137710


ENSMUSG00000032050

UniProt


P35241


P26043

RefSeq (mRNA)

NM_002906 NM_001260492 NM_001260493 NM_001260494 NM_001260495
NM_001260496


NM_001104616 NM_001104617 NM_009041

RefSeq (protein)

NP_001247421.1 NP_001247422.1 NP_001247423.1 NP_001247424.1 NP_001247425.1
NP_002897.1


NP_001098086.1 NP_033067.2

Location (UCSC)

Chr 11: 110.17 – 110.3 Mb

Chr 9: 52.05 – 52.09 Mb

PubMed search

^[1]

^[2]

Wikidata

View/Edit Human

View/Edit Mouse

Radixin is a protein that in humans is encoded by the RDX gene.^[3]^[4]^[5]

Radixin is a cytoskeletal protein that may be important in linking actin to the plasma membrane. It is highly similar in sequence to both ezrin and moesin. The radixin gene has been localized by fluorescence in situ hybridization to 11q23. A truncated version representing a pseudogene (RDXP2) was assigned to Xp21.3. Another pseudogene that seemed to lack introns (RDXP1) was mapped to 11p by Southern and PCR analyses.^[5]

Interactions

Radixin has been shown to interact with GNA13.^[6]

References

↑ "Human PubMed Reference:".
↑ "Mouse PubMed Reference:".
↑ Wilgenbus KK, Milatovich A, Francke U, Furthmayr H (June 1993). "Molecular cloning, cDNA sequence, and chromosomal assignment of the human radixin gene and two dispersed pseudogenes". Genomics. 16 (1): 199–206. doi:10.1006/geno.1993.1159. PMID 8486357.
↑ Khan SY, Ahmed ZM, Shabbir MI, Kitajiri S, Kalsoom S, Tasneem S, Shayiq S, Ramesh A, Srisailpathy S, Khan SN, Smith RJ, Riazuddin S, Friedman TB, Riazuddin S (April 2007). "Mutations of the RDX gene cause nonsyndromic hearing loss at the DFNB24 locus". Hum Mutat. 28 (5): 417–23. doi:10.1002/humu.20469. PMID 17226784.
1 2 "Entrez Gene: RDX radixin".
↑ Vaiskunaite R, Adarichev V, Furthmayr H, Kozasa T, Gudkov A, Voyno-Yasenetskaya TA (August 2000). "Conformational activation of radixin by G13 protein alpha subunit". J. Biol. Chem. 275 (34): 26206–12. doi:10.1074/jbc.M001863200. PMID 10816569.

Hoeflich KP, Ikura M (2005). "Radixin: cytoskeletal adopter and signaling protein". Int. J. Biochem. Cell Biol. 36 (11): 2131–6. doi:10.1016/j.biocel.2003.11.018. PMID 15313460.
Matarrese P, Malorni W (2006). "Human immunodeficiency virus (HIV)-1 proteins and cytoskeleton: partners in viral life and host cell death". Cell Death Differ. 12 Suppl 1: 932–41. doi:10.1038/sj.cdd.4401582. PMID 15818415.
Sato N, Funayama N, Nagafuchi A, Yonemura S, Tsukita S, Tsukita S (1992). "A gene family consisting of ezrin, radixin and moesin. Its specific localization at actin filament/plasma membrane association sites". J. Cell. Sci. 103 (1): 131–43. PMID 1429901.
Hirao M, Sato N, Kondo T, Yonemura S, Monden M, Sasaki T, Takai Y, Tsukita S, Tsukita S (1996). "Regulation mechanism of ERM (ezrin/radixin/moesin) protein/plasma membrane association: possible involvement of phosphatidylinositol turnover and Rho-dependent signaling pathway". J. Cell Biol. 135 (1): 37–51. doi:10.1083/jcb.135.1.37. PMC 2121020. PMID 8858161.
Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
Stemmer-Rachamimov AO, Gonzalez-Agosti C, Xu L, Burwick JA, Beauchamp R, Pinney D, Louis DN, Ramesh V (1997). "Expression of NF2-encoded merlin and related ERM family proteins in the human central nervous system". J. Neuropathol. Exp. Neurol. 56 (6): 735–42. doi:10.1097/00005072-199756060-00011. PMID 9184664.
Takahashi K, Sasaki T, Mammoto A, Takaishi K, Kameyama T, Tsukita S, Takai Y (1997). "Direct interaction of the Rho GDP dissociation inhibitor with ezrin/radixin/moesin initiates the activation of the Rho small G protein". J. Biol. Chem. 272 (37): 23371–5. doi:10.1074/jbc.272.37.23371. PMID 9287351.
Kondo T, Takeuchi K, Doi Y, Yonemura S, Nagata S, Tsukita S (1997). "ERM (Ezrin/Radixin/Moesin)-based Molecular Mechanism of Microvillar Breakdown at an Early Stage of Apoptosis". J. Cell Biol. 139 (3): 749–58. doi:10.1083/jcb.139.3.749. PMC 2141718. PMID 9348291.
Murthy A, Gonzalez-Agosti C, Cordero E, Pinney D, Candia C, Solomon F, Gusella J, Ramesh V (1998). "NHE-RF, a regulatory cofactor for Na(+)-H+ exchange, is a common interactor for merlin and ERM (MERM) proteins". J. Biol. Chem. 273 (3): 1273–6. doi:10.1074/jbc.273.3.1273. PMID 9430655.
Matsui T, Maeda M, Doi Y, Yonemura S, Amano M, Kaibuchi K, Tsukita S, Tsukita S (1998). "Rho-Kinase Phosphorylates COOH-terminal Threonines of Ezrin/Radixin/Moesin (ERM) Proteins and Regulates Their Head-to-Tail Association". J. Cell Biol. 140 (3): 647–57. doi:10.1083/jcb.140.3.647. PMC 2140160. PMID 9456324.
Yonemura S, Hirao M, Doi Y, Takahashi N, Kondo T, Tsukita S, Tsukita S (1998). "Ezrin/Radixin/Moesin (ERM) Proteins Bind to a Positively Charged Amino Acid Cluster in the Juxta-Membrane Cytoplasmic Domain of CD44, CD43, and ICAM-2". J. Cell Biol. 140 (4): 885–95. doi:10.1083/jcb.140.4.885. PMC 2141743. PMID 9472040.
Bhartur SG, Goldenring JR (1998). "Mapping of ezrin dimerization using yeast two-hybrid screening". Biochem. Biophys. Res. Commun. 243 (3): 874–7. doi:10.1006/bbrc.1998.8196. PMID 9501018.
Takahashi K, Sasaki T, Mammoto A, Hotta I, Takaishi K, Imamura H, Nakano K, Kodama A, Takai Y (1998). "Interaction of radixin with Rho small G protein GDP/GTP exchange protein Dbl". Oncogene. 16 (25): 3279–84. doi:10.1038/sj.onc.1201874. PMID 9681826.
Lamb RF, Roy C, Diefenbach TJ, Vinters HV, Johnson MW, Jay DG, Hall A (2000). "The TSC1 tumour suppressor hamartin regulates cell adhesion through ERM proteins and the GTPase Rho". Nat. Cell Biol. 2 (5): 281–7. doi:10.1038/35010550. PMID 10806479.
Vaiskunaite R, Adarichev V, Furthmayr H, Kozasa T, Gudkov A, Voyno-Yasenetskaya TA (2000). "Conformational activation of radixin by G13 protein alpha subunit". J. Biol. Chem. 275 (34): 26206–12. doi:10.1074/jbc.M001863200. PMID 10816569.
Hamada K, Shimizu T, Matsui T, Tsukita S, Tsukita S, Hakoshima T (2001). "Crystallographic characterization of the radixin FERM domain bound to the cytoplasmic tail of the adhesion protein ICAM-2". Acta Crystallogr. D. 57 (Pt 6): 891–2. doi:10.1107/S0907444901005716. PMID 11375520.
Kikuchi S, Hata M, Fukumoto K, Yamane Y, Matsui T, Tamura A, Yonemura S, Yamagishi H, Keppler D, Tsukita S, Tsukita S (2002). "Radixin deficiency causes conjugated hyperbilirubinemia with loss of Mrp2 from bile canalicular membranes". Nat. Genet. 31 (3): 320–5. doi:10.1038/ng905. PMID 12068294.
Dickson TC, Mintz CD, Benson DL, Salton SR (2002). "Functional binding interaction identified between the axonal CAM L1 and members of the ERM family". J. Cell Biol. 157 (7): 1105–12. doi:10.1083/jcb.200111076. PMC 2173555. PMID 12070130.
Haddad LA, Smith N, Bowser M, Niida Y, Murthy V, Gonzalez-Agosti C, Ramesh V (2003). "The TSC1 tumor suppressor hamartin interacts with neurofilament-L and possibly functions as a novel integrator of the neuronal cytoskeleton". J. Biol. Chem. 277 (46): 44180–6. doi:10.1074/jbc.M207211200. PMID 12226091.

PDB gallery

1gc6: CRYSTAL STRUCTURE OF THE RADIXIN FERM DOMAIN COMPLEXED WITH INOSITOL-(1,4,5)-TRIPHOSPHATE

1gc7: CRYSTAL STRUCTURE OF THE RADIXIN FERM DOMAIN

1j19: Crystal structure of the radxin FERM domain complexed with the ICAM-2 cytoplasmic peptide

2d10: Crystal structure of the Radixin FERM domain complexed with the NHERF-1 C-terminal tail peptide

2d11: Crystal structure of the Radixin FERM domain complexed with the NHERF-2 C-terminal tail peptide

2d2q: Crystal structure of the dimerized radixin FERM domain

2yvc: Crystal structure of the Radixin FERM domain complexed with the NEP cytoplasmic tail

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Radixin

Interactions

See also

References

Further reading