Human Sirtuin 5/SIRT5 Antibody

Catalog # Availability Size / Price Qty
Detection of Human Sirtuin 5/SIRT5 by Western Blot.
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Product Details
Supplemental Products

Human Sirtuin 5/SIRT5 Antibody Summary

Species Reactivity
Detects human Sirtuin 5/SIRT5  in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) SIRT1, rhSIRT2, and rhSIRT6 is observed.
Polyclonal Sheep IgG
Antigen Affinity-purified
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Sirtuin 5/SIRT5
Accession # Q9NXA8
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
See below
5-15 µg/mL
See below
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Sirtuin 5/SIRT5, see our available Western blot detection antibodies

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Sirtuin 5/SIRT5 antibody by Western Blot. View Larger

Detection of Human Sirtuin 5/SIRT5 by Western Blot. Western blot shows lysates of human liver tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human Sirtuin 5/SIRT5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5914) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Sirtuin 5/SIRT5 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

Immunohistochemistry Sirtuin 5/SIRT5 antibody in Human Liver by Immunohistochemistry (IHC-P). View Larger

Sirtuin 5/SIRT5 in Human Liver. Sirtuin 5/SIRT5 was detected in immersion fixed paraffin-embedded sections of human liver using Sheep Anti-Human Sirtuin 5/SIRT5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5914) at 10 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to hepatocyte cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Sirtuin 5/SIRT5

Sirtuin 5 (SIRT5; SIR2-like protein 5) is a 28‑35 kDa class III member of the sirtuin protein family. It is found in the mitochondrial matrix and is involved in ammonia detoxification. In particular, it deacetylates carbamoyl phosphate synthetase 1/CPS1, thus activating it and allowing for ammonia condensation with bicarbonate and ATP. This is a crucial step in urea formation during prolonged fasting or the use of a high-protein diet. Human SIRT5 is 310 amino acids (aa) in length. It possesses a sertuin‑type deacetylase domain (aa 41‑309) that contains an NAD binding motif (Thr276:Glu277:Pro292). There are three potential isoform variants that show aa substitutions at the C‑terminus. One contains a 14 aa substitution for aa 286‑310, a second shows a 15 aa substitution for aa 287‑310, and the third shows a 17 aa substitution for aa 207‑310. Full-length human and mouse SIRT5 share 86% aa identity.

Long Name
Silent Mating Type Information Regulation 5 Homolog
Entrez Gene IDs
23408 (Human); 68346 (Mouse); 306840 (Rat)
Alternate Names
EC 3.5.1; EC 3.5.1.-; FLJ36950; NAD-dependent deacetylase sirtuin-5; silent mating type information regulation 2, S.cerevisiae, homolog 5; SIR2L5; sir2-like 5; SIR2-like protein 5; SIRT5; sirtuin (silent mating type information regulation 2 homolog) 5 (S. cerevisiae); sirtuin (silent mating type information regulation 2, S.cerevisiae, homolog) 5; Sirtuin 5; sirtuin type 5

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