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  • S5447 - Anti-SIRT1 antibody produced in rabbit

S5447 Sigma-Aldrich

Anti-SIRT1 antibody produced in rabbit

~1.0 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonym: Anti-S. cerevisiae, HOMOLOG-LIKE 1, Anti-SIR2α, Anti-SIR2, Anti-SIR2L1, Anti-Sirtuin 1



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Epigenetics and Nuclear Signaling, Antibodies for Gene Regulation,
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   immunoprecipitation (IP): 5-10 μg using extracts of Jurkat cells
  western blot: 2.5-5 μg/mL using whole extracts of Jurkat cells
species reactivity   human
mol wt   antigen ~120 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   affinity isolated antibody
Quality Level   200
antibody product type   primary antibodies
concentration   ~1.0 mg/mL
UniProt accession no.   Q96EB6
Gene Information   human ... SIRT1(23411)
mouse ... Sirt1(93759)
rat ... Sirt1(309757)


General description

Anti-SIRT1 recognizes human SIRT1. Sirtuin 1 (SIRT1) is encoded by the gene mapped to human chromosome 10q21.3. The encoded protein belongs to the silent information regulator (SIR) family and is a class of HDAC (histone deacetylase). SIRT1 is expressed in various tissues including brain, liver, pancreas, adipose tissue, and skeletal muscle. SIRT1 is also known as the longevity gene.


synthetic peptide corresponding to amino acids 580-593 of human SIRT1, conjugated to KLH via an N-terminal cysteine residue. The corresponding sequence differs by three amino acids in rat and mouse Sirt1.


Anti-SIRT1 antibody produced in rabbit has been used in immunohistochemistry.

Physical form

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

Storage and Stability

For continuous use, store at 2-8°C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in “frostfree” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.


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

Sirtuin 1 (SIRT1) functions as a regulator of various metabolic pathways, and influences the pathophysiology of several metabolic diseases. It is a regulator of protein deacetylation, and is a candidate therapeutic target in non-alcoholic fatty liver disease (NAFLD), amyotrophic lateral sclerosis (ALS), kidney disease, and pulmonary disease. It also participates in tumorigenesis, and whether it functions as an oncogene or as a tumor suppressor depends upon the tumor type. In pancreatic ductal adenocarcinoma (PDAC), its elevated expression is linked with poor prognosis, and in non-small-cell lung cancer (NSCLC), it suppresses the expression of tumor suppressor p27. The encoded protein inhibits the terminal differentiation in dividing myocytes by binding to the myoD cofactor, pCAF. It is also thought to function as a suppressor of cardiovascular disorders, such as myocardial infarction, or neurodegenerative diseases, such as Alzheimer’s disease (AD) or Parkinson’s disorder (PD).

Other Notes

In order to obtain the best results using various techniques and preparations, we recommend determining the optimal working dilutions by titration.

Safety & Documentation

Safety Information

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


Certificate of Analysis (COA)

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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 ...
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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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