• Featured Product
  • KD/KO Validated

SIRT1 Polyclonal antibody

SIRT1 Polyclonal Antibody for WB, IF, IHC, ELISA

Host / Isotype

Rabbit / IgG


human, mouse and More (6)





Cat no : 13161-1-AP


hSIR2, hSIRT1, SIR2 like protein 1, SIR2L1, SIRT1

Tested Applications

Positive WB detected inHEK-293 cells, HeLa cells, MDA-MB-231 cells
Positive IHC detected inhuman colon cancer tissue, human lung cancer tissue, mouse testis tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inA431 cells, HeLa cells

Recommended dilution

Western Blot (WB)WB : 1:1000-1:6000
Immunohistochemistry (IHC)IHC : 1:50-1:500
Immunofluorescence (IF)IF : 1:50-1:500
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

13161-1-AP targets SIRT1 in WB, IP, IF, IHC, CoIP, ELISA applications and shows reactivity with human, mouse samples.

Tested Reactivity human, mouse
Cited Reactivityhuman, goat, sheep, zebrafish, pig, bovine, Megalobrama amblycephala
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen SIRT1 fusion protein Ag3808
Full Name sirtuin (silent mating type information regulation 2 homolog) 1 (S. cerevisiae)
Calculated Molecular Weight 747 aa, 82 kDa
Observed Molecular Weight 110-130 kDa, 80-85 kDa
GenBank Accession NumberBC012499
Gene Symbol SIRT1
Gene ID (NCBI) 23411
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

SIRT1, also named as SIR2L1, contains a deacetylase sirtuin-type domain and belongs to the sirtuin family. The post-translation modified SIRT1 is a 110-130 kDa protein, which contains one deacetylase sirtuin-type domain. The 75-80 kDa SirT1 fragment was detected to lack the carboxy-terminus (PMID:21305533). SirT1 exists a 57-61 kDa isoform. SIRT1 may be found in nucleolus, nuclear euchromatin, heterochromatin, and inner membrane. It can shuttles between the nucleus and cytoplasm. SIRT1 regulates processes such as apoptosis and muscle differentiation by deacetylating key proteins. SIRT1 in particular initiates several signaling events relevant to cardioprotection, including: activation of endothelial nitric oxide synthase, INS receptor signaling, and autophagy. In addition, SIRT1 activation elicits resistance to oxidative stress via regulation of transcription factors and co-activators such as FOXO, Hif-2a, and NF-kB. SIRT1 regulates the p53-dependent DNA damage response pathway by binding to and deacetylating p53, specifically at Lysine 382. This antibody is a rabbit polyclonal antibody raised against residues near the N terminus of human SIRT1.


Product Specific Protocols
WB protocol for SIRT1 antibody 13161-1-APDownload protocol
IHC protocol for SIRT1 antibody 13161-1-APDownload protocol
IF protocol for SIRT1 antibody 13161-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols




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Melatonin enhances mitochondrial biogenesis and protects against rotenone-induced mitochondrial deficiency in early porcine embryos.

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A translational program that suppresses metabolism to shield the genome.

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The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


Uxoa (Verified Customer) (02-19-2020)

Non nuclear signal of SIRT1 in human fibroblast. Cells fixed with 4% PFA 15 min. Ab dilution 1:100 in PBST (0.1% triton)+10% GS. O/N 4ºC incubation. Secondary ab: Goat anti-rabbit alexafluor 555 1:500 in PBST + 10% GS 1h RT.

  • Applications: Immunofluorescence,
  • Primary Antibody Dilution: 1:100
  • Cell Tissue Type: Human fibroblasts
SIRT1 Antibody Immunofluorescence, validation (1:100 dilution) in Human fibroblasts (Cat no:13161-1-AP)

Tanusree (Verified Customer) (12-18-2019)

Product worked well in WB at 1:500 dilution

  • Applications: Western Blot,
  • Primary Antibody Dilution: 1:500
  • Cell Tissue Type: Mouse brain