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Proteins and peptidesAnti-Ly6g antibody [1A8] - mouse IgG2c (Chimeric)
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Our first-to-market chimera with mouse IgG2c backbone, this functional antibody specifically depletes neutrophils in vivo for up to 72h.
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SIRT3 Activity Assay Kit (Fluorometric) (ab156067) detects SIRT3 activity in lysates.
Is this your first time purchasing this assay kit? Get 20% off one kit by entering code 20OFF-T5A8Q at checkout. T&C’s apply – click here. Offer only valid when purchasing directly from Abcam in Europe, North America, Australia, and Singapore.
Fluorescent
Cell culture extracts, Tissue Extracts
Enzyme activity
Human
40m
NAD-dependent protein deacetylase (PubMed:12186850, PubMed:12374852, PubMed:16788062, PubMed:18680753, PubMed:18794531, PubMed:23283301, PubMed:24121500, PubMed:24252090, PubMed:19535340). Activates or deactivates mitochondrial target proteins by deacetylating key lysine residues (PubMed:12186850, PubMed:12374852, PubMed:16788062, PubMed:18680753, PubMed:18794531, PubMed:23283301, PubMed:24121500, PubMed:24252090). Known targets include ACSS1, IDH, GDH, SOD2, PDHA1, LCAD, SDHA and the ATP synthase subunit ATP5PO (PubMed:16788062, PubMed:18680753, PubMed:24121500, PubMed:24252090, PubMed:19535340). Contributes to the regulation of the cellular energy metabolism (PubMed:24252090). Important for regulating tissue-specific ATP levels (PubMed:18794531). In response to metabolic stress, deacetylates transcription factor FOXO3 and recruits FOXO3 and mitochondrial RNA polymerase POLRMT to mtDNA to promote mtDNA transcription (PubMed:23283301). Acts as a regulator of ceramide metabolism by mediating deacetylation of ceramide synthases CERS1, CERS2 and CERS6, thereby increasing their activity and promoting mitochondrial ceramide accumulation (By similarity).
hSIRT3, Regulatory protein SIR2 homolog 3, SIR2-like protein 3, SIR2L3, SIRT3
SIRT3 Activity Assay Kit (Fluorometric) (ab156067) detects SIRT3 activity in lysates.
Is this your first time purchasing this assay kit? Get 20% off one kit by entering code 20OFF-T5A8Q at checkout. T&C’s apply – click here. Offer only valid when purchasing directly from Abcam in Europe, North America, Australia, and Singapore.
hSIRT3, Regulatory protein SIR2 homolog 3, SIR2-like protein 3, SIR2L3, SIRT3
Fluorescent
Cell culture extracts, Tissue Extracts
Enzyme activity
Human
40m
Microplate reader
Dry Ice
-80°C
Multi
Please refer to protocols
Abcam's SIRT3 Activity Assay Kit (Fluorometric) (ab156067) detects SIRT3 activity in lysates.
Primarily, the SIRT3 Activity Assay Kit (Fluorometric) is designed for the rapid and sensitive evaluation of SIRT3 inhibitors or activators using crude SIRT3 fraction or purified SIRT3.
Applications for this kit include:
1. Screening inhibitors or activators of SIRT3.
2. Detecting the effects of pharmacological agents on SIRT3.
SIRT3 assay protocol summary:
- add assay buffer, substrate peptide and NAD to wells
- add developer to wells
- add enzyme sample or recombinant SIRT3 to wells
- analyze with microplate reader for 30-60 min every 1-2 min
Histone Deacetylases (HDACs) are a class of enzymes responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4), allowing the histones to wrap the DNA more tightly.
HDAC proteins occur in four groups (class I, class IIA, class IIB, class III, class IV) based on function and DNA sequence similarity.
Classes I, IIA and IIB are considered "classical" HDACs whose activities are inhibited by trichostatin A (TSA), whereas class III is a family of NAD+-dependent proteins (sirtuins) not affected by TSA. Class IV is considered an atypical class on its own, based solely on DNA sequence similarity to the others.
SIRT3 modulates energy homeostasis by deacetylating and regulating enzymes involved in metabolism. It is a part of the mitochondrial sirtuin family contributing to fatty acid oxidation and the antioxidant defense system. By targeting key metabolic enzymes SIRT3 directly impacts the tricarboxylic acid (TCA) cycle and oxidative phosphorylation processes. These functions highlight its role in maintaining energy efficiency and reducing reactive oxidative species.
SIRT3 also known as Sirtuin 3 and mitochondrial sirtuin is a deacetylase with a mass of roughly 44 kDa. This protein is mostly found in the mitochondria where it regulates the acetylation state of various substrates. It plays an important role in maintaining mitochondrial homeostasis by modifying protein activity. SIRT3 is evolutionarily conserved and highly expressed in tissues with high energy demand like the heart liver and brown adipose tissue.
SIRT3 participates in vital metabolic pathways such as the TCA cycle and the urea cycle. It interacts with other proteins like MnSOD and IDH2 to enhance mitochondrial function and overall cellular metabolism. This helps control the balance between energy production and consumption integrating signals from the AMPK and NAD+-dependent pathways to coordinate responses to changes in energy availability.
SIRT3 has implications in metabolic syndrome and cancer. Reduced SIRT3 activity is associated with increased susceptibility to metabolic disturbances like obesity and type 2 diabetes. Its deficiency affects the regulation of ROS and metabolic adaptation linking it to tumorigenesis and cancer progression. As it connects with proteins like HIF-1α in hypoxic conditions SIRT3 plays a role in cellular adaptation to stress influencing disease progression.
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Full details and terms and conditions can be found here:
Terms & Conditions.
Dose dependency curve of recombinant SIRT3 activity
Effect of Trichostatin A and NAD on recombinant SIRT3 activity
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