Spectrin beta chain, non-erythrocytic 4, or ß4 spectrin, is a member of the spectrin family of cytoskeletal proteins. It is found in the cytoskeleton and cell cortex of cells in the brain and pancreatic islets. It is also expressed in skeletal muscule. ß4 spectrin functions as a scaffold protein that links the actin cytoskeleton to the plasma membrane. It is involved in cell shape and organization. Mutations in the ß4 spectrin gene are associated with congenital myopathy, and neurodevelopmental disorder with hypotonia, neuropathy and deafness (NEDHND).
ICC, IHC, WB
SPTBN4 KIAA1642 SPTBN3
Fusion protein amino acids 1621-1832 (C-terminal repeats 14 to 15) of human Beta4-spectrin (also known as BetaIV-spectrin sigma1, Nonerythrocytic spectrin beta chain 4, Non-erythroid spectrin beta chain 3, SPTBN4, SPTBN3, Spnb4, KIAA1642, EMBL BAB83243.1 and Ensembl ENSRNOP00000028393, accession number Q9H254); Mouse: 98% identity (209/212 amino acids identical); Rat: 98% identity (209/212 amino acids identical); 60% identity with Beta2-spectrin
Human, Mouse, Rat
Store at ≤ -20 C for long term storage. For short term storage, store at 2-8 C. For maximum recovery of product, centrifuge the vial prior to removing the cap.
Does not cross-react with other Beta-spectrins
Each new lot of this antibody is tested to confirm that it shows the expected immunoperoxidase-diaminobenzidine / immunofluorescence staining pattern when used to stain brain sections.
These antibodies are to be used as research laboratory reagents and are not for use as diagnostic or therapeutic reagents in humans.