Molecular weight (DA)
275kD
Immunogen
The antiserum was produced against synthesized peptide derived from human SPTBN1. AA range:651-700
Specificity
Spectrin β II Polyclonal Antibody detects endogenous levels of Spectrin β II protein.
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Dilution rate
WB: 1/500 - 1/2000. IHC: 1/100 - 1/300. ELISA: 1/10000.. IF 1:50-200
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
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 which are involved in dimer formation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008],
Function
function:Fodrin, which seems to be involved in secretion, interacts with calmodulin in a calcium-dependent manner and is thus candidate for the calcium-dependent movement of the cytoskeleton at the membrane.,PTM:Isoform 2 is phosphorylated on Ser-8 and Ser-10.,similarity:Belongs to the spectrin family.,similarity:Contains 1 PH domain.,similarity:Contains 17 spectrin repeats.,similarity:Contains 2 CH (calponin-homology) domains.,subcellular location:Colocalizes with ANK2 in a distinct intracellular compartment of neonatal cardiomyocytes.,subunit:Like erythrocyte spectrin, the spectrin-like proteins are capable to form dimers which can further associate to tetramers. The short form cannot bind to the axonal protein fodaxin. Interacts with ANK2.,tissue specificity:Isoform 2 is present in brain, lung and kidney (at protein level).,
Protein name
Spectrin beta chain non-erythrocytic 1
Abbreviation
Spectrin β II
Other name
SPTBN1; SPTB2; Spectrin beta chain; non-erythrocytic 1; Beta-II spectrin; Fodrin beta chain; Spectrin, non-erythroid beta chain 1
Human protein sequence Database
Q01082
Mouse protein sequence database
Q62261
Rat protein sequence database
Cellular localization
Cytoplasm, cytoskeleton . Cytoplasm, myofibril, sarcomere, M line . Colocalizes with ANK2 in a distinct intracellular compartment of neonatal cardiomyocytes. .; [Isoform 2]: Cell membrane ; Peripheral membrane protein ; Cytoplasmic side .
Tissue expression
Isoform 2 is present in brain, lung and kidney (at protein level).
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