Product nameAnti-SIRT4 antibody
See all SIRT4 primary antibodies
DescriptionGoat polyclonal to SIRT4
Tested applicationsSuitable for: WB, IHC-Pmore details
Species reactivityReacts with: Rat, Human
Predicted to work with: Mouse, Cow, Dog, Pig
- Human kidney and U937 lysate. Humsn skeletal muscle tissue.
This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class IV of the sirtuin family.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Storage bufferpH: 7.30
Preservative: 0.02% Sodium azide
Constituents: Tris buffered saline, 0.5% BSA
Concentration information loading...
PurityImmunogen affinity purified
Purification notesPurified from goat serum by ammonium sulphate precipitation followed by antigen affinity chromatography using the immunizing peptide.
Primary antibody notesThis gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class IV of the sirtuin family.
- Epigenetics and Nuclear Signaling
- Chromatin Modifying Enzymes
- Class III / Sir2 class
- Pathways and Processes
- Metabolic signaling pathways
- Energy transfer pathways
- Energy Metabolism
Immunizing Peptide (Blocking)
Our Abpromise guarantee covers the use of ab10140 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use a concentration of 1 - 3 µg/ml. Detects a band of approximately 38 kDa (predicted molecular weight: 36 kDa).Can be blocked with Human SIRT4 peptide (ab23185).|
|IHC-P||Use a concentration of 2 - 3 µg/ml. Steamed antigen retrieval with citrate buffer pH 6 is recommended.|
FunctionActs as NAD-dependent protein lipoamidase, ADP-ribosyl transferase and deacetylase. Catalyzes more efficiently removal of lipoyl- and biotinyl- than acetyl-lysine modifications. Inhibits the pyruvate dehydrogenase complex (PDH) activity via the enzymatic hydrolysis of the lipoamide cofactor from the E2 component, DLAT, in a phosphorylation-independent manner (PubMed:25525879). Catalyzes the transfer of ADP-ribosyl groups onto target proteins, including mitochondrial GLUD1, inhibiting GLUD1 enzyme activity. Acts as a negative regulator of mitochondrial glutamine metabolism by mediating mono ADP-ribosylation of GLUD1: expressed in response to DNA damage and negatively regulates anaplerosis by inhibiting GLUD1, leading to block metabolism of glutamine into tricarboxylic acid cycle and promoting cell cycle arrest (PubMed:16959573, PubMed:17715127). In response to mTORC1 signal, SIRT4 expression is repressed, promoting anaplerosis and cell proliferation. Acts as a tumor suppressor (PubMed:23562301, PubMed:23663782). Also acts as a NAD-dependent protein deacetylase: mediates deacetylation of 'Lys-471' of MLYCD, inhibiting its activity, thereby acting as a regulator of lipid homeostasis (By similarity). Controls fatty acid oxidation by inhibiting PPARA transcriptional activation. Impairs SIRT1:PPARA interaction probably through the regulation of NAD(+) levels (PubMed:24043310). Down-regulates insulin secretion.
Tissue specificityDetected in vascular smooth muscle and striated muscle. Detected in insulin-producing beta-cells in pancreas islets of Langerhans (at protein level). Widely expressed. Weakly expressed in leukocytes and fetal thymus.
Sequence similaritiesBelongs to the sirtuin family. Class II subfamily.
Contains 1 deacetylase sirtuin-type domain.
Cellular localizationMitochondrion matrix.
- Information by UniProt
- MGC130046 antibody
- MGC130047 antibody
- MGC57437 antibody
ab10140 at 2.5µg/ml staining SIRT4 in human skeletal muscle tissue section by Immunohistochemistry (Formalin/ PFA fixed paraffin-embedded tissue sections). Tissue underwent antigen retrieval in steam in citrate buffer pH 6.0. AP staining procedure was used for detection.
Immunohistochemical analysis of formalin-fixed, paraffin-embedded Human pancreas tissue, staining SIRT4 with ab10140 at 2 µg/ml. Antigen retrieval was performed by heat mediation in a citrate buffer (pH 6).
Anti-SIRT4 antibody (ab10140) at 0.05 µg/ml + Human kidney lysate in RIPA buffer at 35 µg
Developed using the ECL technique.
Predicted band size: 36 kDa
Observed band size: 37 kDa why is the actual band size different from the predicted?
All lanes : Anti-SIRT4 antibody (ab10140) at 3 µg/ml
Lane 1 : MOCK-transfected HEK293 cell lysate
Lane 2 : SIRT4-transfected HEK293 cell lysate
Predicted band size: 36 kDa
Observed band size: 38 kDa why is the actual band size different from the predicted?
This product has been referenced in:
- Zhu Y et al. Knockout of SIRT4 decreases chemosensitivity to 5-FU in colorectal cancer cells. Oncol Lett 16:1675-1681 (2018). Read more (PubMed: 30008852) »
- Luo H et al. Expression of Sirtuins in the Retinal Neurons of Mice, Rats, and Humans. Front Aging Neurosci 9:366 (2017). WB, IHC-P ; Mouse, Rat, Human . Read more (PubMed: 29249955) »