SPTBN1

SPTBN1
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1AA2, 1BKR, 3EDV
Identifiers
Aliases	SPTBN1, ELF, HEL102, SPTB2, betaSpII, spectrin beta, non-erythrocytic 1, DDISBA
External IDs	OMIM: 182790 MGI: 98388 HomoloGene: 2354 GeneCards: SPTBN1
Gene location (Human) Chr. Chromosome 2 (human) Band 2p16.2 Start 54,456,317 bp End 54,671,446 bp
Gene location (Mouse) Chr. Chromosome 11 (mouse) Band 11 A3.3|11 17.44 cM Start 30,049,395 bp End 30,218,175 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in endothelial cell trigeminal ganglion external globus pallidus synovial joint superior vestibular nucleus vena cava renal medulla parietal lobe middle temporal gyrus pons Top expressed in right lung right lung lobe facial motor nucleus carotid body left lung iris anterior horn of spinal cord ciliary body left lung lobe medial dorsal nucleus More reference expression data BioGPS More reference expression data
Gene ontology Molecular function calmodulin binding structural constituent of cytoskeleton protein binding ankyrin binding GTPase binding actin binding phospholipid binding protein-containing complex binding RNA binding cadherin binding Cellular component cytoplasm M band cytosol spectrin membrane cortical cytoskeleton plasma membrane cuticular plate nucleolus axolemma spectrin-associated cytoskeleton extracellular exosome cytoskeleton nucleus postsynaptic density protein-containing complex postsynapse glutamatergic synapse Biological process common-partner SMAD protein phosphorylation mitotic cytokinesis MAPK cascade axon guidance endoplasmic reticulum to Golgi vesicle-mediated transport positive regulation of protein localization to plasma membrane actin filament capping plasma membrane organization membrane assembly regulation of protein localization to plasma membrane Golgi to plasma membrane protein transport cytoskeleton organization protein localization to plasma membrane regulation of molecular function regulation of SMAD protein signal transduction Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 6711 20742 Ensembl ENSG00000115306 ENSMUSG00000020315 UniProt Q01082 Q62261 RefSeq (mRNA) NM_003128 NM_178313 NM_009260 NM_175836 RefSeq (protein) NP_003119 NP_842565 NP_033286 NP_787030 Location (UCSC) Chr 2: 54.46 – 54.67 Mb Chr 11: 30.05 – 30.22 Mb PubMed search
Wikidata
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Spectrin beta chain, brain 1 is a protein that in humans is encoded by the SPTBN1 gene.

Function

Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. This gene is one member of a family of beta-spectrin genes. The encoded protein contains an N-terminal actin-binding domain, and 17 spectrin repeats that are involved in dimer formation. Multiple transcript variants encoding different isoforms have been found for this gene.

Interactions

SPTBN1 has been shown to interact with Merlin.

Further reading

• Hu RJ, Watanabe M, Bennett V (1992). "Characterization of human brain cDNA encoding the general isoform of beta-spectrin". J. Biol. Chem. 267 (26): 18715–22. doi:10.1016/S0021-9258(19)37020-6. PMID 1527002.
• Yoon SH, Skalka H, Prchal JT (1989). "Presence of erythroid and nonerythroid spectrin transcripts in human lens and cerebellum". Invest. Ophthalmol. Vis. Sci. 30 (8): 1860–6. PMID 2474519.
• Chang JG, Scarpa A, Eddy RL, Byers MG, Harris AS, Morrow JS, Watkins P, Shows TB, Forget BG (1993). "Cloning of a portion of the chromosomal gene and cDNA for human beta-fodrin, the nonerythroid form of beta-spectrin". Genomics. 17 (2): 287–93. doi:10.1006/geno.1993.1323. PMID 8406479.
• Shimizu T, Takakuwa Y, Koizumi H, Ishibashi T, Ohkawara A (1996). "Calcium-dependent peripheral localization of 4.1-like proteins and fodrin in cultured human keratinocytes". Biol. Cell. 86 (1): 19–26. doi:10.1016/0248-4900(96)89520-7. PMID 8688828.
• 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.
• Holleran EA, Tokito MK, Karki S, Holzbaur EL (1997). "Centractin (ARP1) associates with spectrin revealing a potential mechanism to link dynactin to intracellular organelles". J. Cell Biol. 135 (6 Pt 2): 1815–29. doi:10.1083/jcb.135.6.1815. PMC 2133946. PMID 8991093.
• Djinovic Carugo K, Bañuelos S, Saraste M (1997). "Crystal structure of a calponin homology domain". Nat. Struct. Biol. 4 (3): 175–9. doi:10.1038/nsb0397-175. PMID 9164454. S2CID 1428195.
• Scoles DR, Huynh DP, Morcos PA, Coulsell ER, Robinson NG, Tamanoi F, Pulst SM (1998). "Neurofibromatosis 2 tumour suppressor schwannomin interacts with betaII-spectrin". Nat. Genet. 18 (4): 354–9. doi:10.1038/ng0498-354. PMID 9537418. S2CID 30709629.
• Sihag RK (1998). "Brain beta-spectrin phosphorylation: phosphate analysis and identification of threonine-347 as a heparin-sensitive protein kinase phosphorylation site". J. Neurochem. 71 (5): 2220–8. doi:10.1046/j.1471-4159.1998.71052220.x. PMID 9798950. S2CID 23703252.
• Bañuelos S, Saraste M, Djinović Carugo K (1999). "Structural comparisons of calponin homology domains: implications for actin binding". Structure. 6 (11): 1419–31. doi:10.1016/S0969-2126(98)00141-5. PMID 9817844.
• Löfvenberg L, Backman L (1999). "Calpain-induced proteolysis of beta-spectrins". FEBS Lett. 443 (2): 89–92. doi:10.1016/S0014-5793(98)01697-4. PMID 9989581. S2CID 85055199.
• Hayes NV, Scott C, Heerkens E, Ohanian V, Maggs AM, Pinder JC, Kordeli E, Baines AJ (2000). "Identification of a novel C-terminal variant of beta II spectrin: two isoforms of beta II spectrin have distinct intracellular locations and activities". J. Cell Sci. 113 (11): 2023–34. doi:10.1242/jcs.113.11.2023. PMID 10806113.
• Kontrogianni-Konstantopoulos A, Frye CS, Benz EJ, Huang SC (2001). "The prototypical 4.1R-10-kDa domain and the 4.1g-10-kDa paralog mediate fodrin-actin complex formation". J. Biol. Chem. 276 (23): 20679–87. doi:10.1074/jbc.M010581200. PMID 11274145.
• Neill GW, Crompton MR (2001). "Binding of the merlin-I product of the neurofibromatosis type 2 tumour suppressor gene to a novel site in beta-fodrin is regulated by association between merlin domains". Biochem. J. 358 (Pt 3): 727–35. doi:10.1042/0264-6021:3580727. PMC 1222106. PMID 11535133.
• Chen Y, Yu P, Lu D, Tagle DA, Cai T (2002). "A novel isoform of beta-spectrin II localizes to cerebellar Purkinje-cell bodies and interacts with neurofibromatosis type 2 gene product schwannomin". J. Mol. Neurosci. 17 (1): 59–70. doi:10.1385/JMN:17:1:59. PMID 11665863. S2CID 6524087.
• Shoeman RL, Hartig R, Hauses C, Traub P (2003). "Organization of focal adhesion plaques is disrupted by action of the HIV-1 protease". Cell Biol. Int. 26 (6): 529–39. doi:10.1006/cbir.2002.0895. PMID 12119179. S2CID 39778155.
• Tomsig JL, Snyder SL, Creutz CE (2003). "Identification of targets for calcium signaling through the copine family of proteins. Characterization of a coiled-coil copine-binding motif". J. Biol. Chem. 278 (12): 10048–54. doi:10.1074/jbc.M212632200. PMID 12522145.
• Tang Y, Katuri V, Dillner A, Mishra B, Deng CX, Mishra L (2003). "Disruption of transforming growth factor-beta signaling in ELF beta-spectrin-deficient mice". Science. 299 (5606): 574–7. Bibcode:2003Sci...299..574T. doi:10.1126/science.1075994. PMID 12543979. S2CID 83664290.
• Robb VA, Li W, Gascard P, Perry A, Mohandas N, Gutmann DH (2003). "Identification of a third Protein 4.1 tumor suppressor, Protein 4.1R, in meningioma pathogenesis" (PDF). Neurobiol. Dis. 13 (3): 191–202. doi:10.1016/S0969-9961(03)00071-8. PMID 12901833. S2CID 46574223.