Anti-SPTB antibody produced in rabbit

enhanced validation

Ab2, Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-Spectrin β-chain, erythrocyte antibody produced in rabbit, Anti-β-I Spectrin antibody produced in rabbit
Human Protein Atlas Number:

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... SPTB(6710)

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Spectrin β-chain, erythrocyte recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

SPTB (Spectrin β chain, erythrocytic) gene encodes a protein belonging to the spectrin gene family. The protein contains a domain that binds to ankyrin and attaches to phosphatidylethanolamine/phosphatidylcholine-lipids in the plasma membrane contributing to the shape and deformability of erythrocytes. Mutations in this gene have been associated with hereditary spherocytosis, a heterogeneous inherited haemolytic anaemia, hereditary elliptocytosis, and neonatal hemolytic anemia. Together, spectrin and ankyrin function in membrane organization, stability, signal transduction, and protein targeting.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST70649.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


12 - Non Combustible Liquids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Marcin Wolny et al.
PloS one, 6(6), e21538-e21538 (2011-07-09)
It was shown previously that an ankyrin-sensitive, phosphatidylethanolamine/phosphatidylcholine (PE/PC) binding site maps to the N-terminal part of the ankyrin-binding domain of β-spectrin (ankBDn). Here we have identified the amino acid residues within this domain which are responsible for recognizing monolayers...
Monika Maciag et al.
British journal of haematology, 146(3), 326-332 (2009-06-23)
Hereditary spherocytosis (HS) is one of the most frequent and heterogeneous inherited haemolytic anaemias. It is associated with abnormalities of several erythrocyte membrane proteins. We investigated relative mRNA quantification of red blood cell membrane protein genes using real-time quantitative polymerase...
Paul R Stabach et al.
Blood, 113(22), 5377-5384 (2009-01-27)
Spectrin and ankyrin participate in membrane organization, stability, signal transduction, and protein targeting; their interaction is critical for erythrocyte stability. Repeats 14 and 15 of betaI-spectrin are crucial for ankyrin recognition, yet the way spectrin binds ankyrin while preserving its...
Cecilia Lindskog et al.
BMC genomics, 16, 475-475 (2015-06-26)
To understand cardiac and skeletal muscle function, it is important to define and explore their molecular constituents and also to identify similarities and differences in the gene expression in these two different striated muscle tissues. Here, we have investigated the...

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