| SPTAN1 | 
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| Identifiers | 
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| Aliases | SPTAN1, EIEE5, NEAS, SPTA2, spectrin alpha, non-erythrocytic 1, DEE5 | 
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| External IDs | OMIM: 182810; MGI: 98386; HomoloGene: 2353; GeneCards: SPTAN1; OMA:SPTAN1 - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 2 (mouse) | 
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 |  |  | Band | 2 B|2 20.93 cM | Start | 29,855,572 bp | 
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 | End | 29,921,463 bp | 
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| | RNA expression pattern | 
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 | Bgee | | Human | Mouse (ortholog) | 
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 | | Top expressed in |  | right hemisphere of cerebellum
 right frontal lobe
 Brodmann area 9
 Amygdala
 right uterine tube
 nucleus accumbens
 prefrontal cortex
 Brodmann area 10
 cingulate gyrus
 tibial nerve
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 | | Top expressed in |  | facial motor nucleus
 epithelium of lens
 dentate gyrus of hippocampal formation granule cell
 ciliary body
 Rostral migratory stream
 cerebellar cortex
 iris
 anterior horn of spinal cord
 barrel cortex
 external carotid artery
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 |  | More reference expression data | 
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 | BioGPS |  | 
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| Wikidata | 
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Alpha II-spectrin, also known as Spectrin alpha chain, brain is a protein that in humans is encoded by the SPTAN1 gene. Alpha II-spectrin is expressed in a variety of tissues, and is highly expressed in cardiac muscle at Z-disc structures, costameres and at the sarcolemma membrane. Mutations in alpha II-spectrin have been associated with early infantile epileptic encephalopathy-5, and alpha II-spectrin may be a valuable biomarker for Guillain–Barré syndrome and infantile congenital heart disease.