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  • S5196 - Anti-Sirt1 antibody, Mouse monoclonal

S5196 Sigma-Aldrich

Anti-Sirt1 antibody, Mouse monoclonal

clone SIR11, purified from hybridoma cell culture

Synonym: Anti-SIRTUIN1, Anti-Sir2α, Anti-mouse homologue of yeast Sir2



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Epigenetics and Nuclear Signaling, Antibodies for Gene Regulation,
conjugate   unconjugated
clone   SIR11, monoclonal
biological source   mouse
application(s)   indirect ELISA: suitable
  microarray: suitable
  western blot: 1-2 μg/mL using total cell extract of C-2 cells
species reactivity   mouse
mol wt   antigen ~105 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   purified from hybridoma cell culture
  purified immunoglobulin
isotype   IgG1
Quality Level   200
antibody product type   primary antibodies
concentration   ~2 mg/mL
UniProt accession no.   Q923E4
Gene Information   mouse ... Sirt1(93759)


General description

Monoclonal Anti-Sirt1 (Sir2) (mouse IgG1 isotype) is derived from the hybridoma SIR11 produced by the fusion of mouse myeloma cells (NS1 cells) and splenocytes from BALB/c mice immunized with a synthetic peptide corresponding to amino acids at the C-terminus of mouse Sir2 with C-terminal added lysine. Sirt proteins are a family of proteins that are found in organisms ranging from bacteria to complex eukaryotes. Members of this family contain a 250 amino acid core domain that shares about 25-60% sequence identity. Sirtuin 1 (SIRT1) protein, a mammalian homolog of yeast Sir2, is a NAD-dependent histone deacetylase.


Monoclonal Anti-Sirt1 (Sir2α) antibody is specific for Sir2α in mice.


Anti-Sirt1 antibody, Mouse monoclonal has been used in:
•  western blot analysis
• enzyme-linked immunosorbent assay (ELISA)
•  immunohistochemical methods

Monoclonal Anti-Sirt1 antibody is suitable for use in western blot (1-2 μg/mL using total cell extract of C-2 cells), immunoblot (approx. 105 kDa), microarray and indirect ELISA.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

SIRT1 is a highly conserved sirtuin family deactelyase that modulates heart metabolism . SIRT1 has also been implicated in senescence and aging . Thus, SIRT1 may be used as a target for treating age-related diseases.

Sirt1 transfers acetyl groups from its protein substrates to ADP-ribose and synthesizes O-acetyl-ADP-ribose. Through histone deacetylation, Sirt1 may silence chromatin. It appears that Sirt1 NAD requirement makes this protein an important player in the pathway that leads to increased life span of several species through calorie restriction. Sirtuin 1 (SIRT1) plays an important role in neuronal proliferation and vascular cells. It also plays an athero-protective role. Mutations in the SIRT1 gene affects the metabolism, cholesterol and fat deposition. SIRT1 has the ability to intermediate the insulin resistance through an inflammatory process, reactive oxygen species, gluconeogenesis and adiponectin level.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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Peer-Reviewed Papers


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