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SIRT1 Protein, Human (His)

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Based on 5 publication(s) in Google Scholar

SIRT1 is an NAD-dependent protein deacetylase that integrates multiple cellular functions—cell cycle progression, DNA damage response, metabolism, apoptosis, and autophagy—by regulating the acetylation of various target proteins.SIRT1 responds to changes in the NAD(+)/NADH ratio caused by factors such as glucose deprivation, affecting chromatin remodeling through histone deacetylation, resulting in transcriptional regulation. SIRT1 Protein, Human (His) is the recombinant human-derived SIRT1 protein, expressed by E.coli , with N-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: E. coli
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • SIRT1 Protein, Human (His) Product Image
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  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs
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Biological Activity

Description

SIRT1 is an NAD-dependent protein deacetylase that integrates multiple cellular functions—cell cycle progression, DNA damage response, metabolism, apoptosis, and autophagy—by regulating the acetylation of various target proteins.SIRT1 responds to changes in the NAD(+)/NADH ratio caused by factors such as glucose deprivation, affecting chromatin remodeling through histone deacetylation, resulting in transcriptional regulation. SIRT1 Protein, Human (His) is the recombinant human-derived SIRT1 protein, expressed by E.coli , with N-6*His labeled tag.

Background

SIRT1, a NAD-dependent protein deacetylase, orchestrates the integration of various cellular functions, including cell cycle progression, response to DNA damage, metabolism, apoptosis, and autophagy, by modulating the acetylation status of numerous target proteins. Functioning as a sensor of the NAD(+)/NADH ratio, SIRT1 responds to changes in cellular energetics induced by factors such as glucose deprivation and caloric restriction. Its wide-ranging impact encompasses chromatin remodeling through histone deacetylation, ultimately leading to transcriptional regulation. SIRT1 engages in diverse interactions, deacetylating transcription factors, coregulators, and histones, thereby exerting both positive and negative regulation on target gene expression. Additionally, SIRT1 is implicated in critical processes such as DNA damage response, autophagy, circadian rhythm regulation, and metabolic homeostasis. Its multifaceted roles extend to the regulation of various cellular pathways and the maintenance of genomic integrity, highlighting its significance in cellular physiology and stress response.

Verified Bioactivity

Measured by its ability to remove the acetyl group from a fluorogenic peptide substrate Ac-RGK(Ac)-AMC in a coupled assay that incubate at room temperature in mode for 45 minutes. The specific activity is >15 pmol/min/μg.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag N-6*His
  • Accession

    Q96EB6-1 (A2-S747)

  • Gene ID
    23411  [NCBI]
  • Molecular Construction
    • N-term
    • 6*His
    • SIRT1 (A2-S747)
      Accession # Q96EB6-1
    • C-term
  • Protein Length

    Full Length of Isoform-1

  • Synonyms

    SIRT1; Sirtuin (Silent Mating Type Information Regulation 2, S. Cerevisiae, Homolog) 1; Sirtuin 1; Sirtuin (Silent Mating Type Information Regulation 2 Homolog) 1 (S. Cerevisiae); SIR2L1; Protein Acetyllysine N-Acetyltransferase; NAD-Dependent Protein Dea

  • AA Sequence

    ADEAALALQPGGSPSAAGADREAASSPAGEPLRKRPRRDGPGLERSPGEPGGAAPEREVPAAARGCPGAAAAALWREAEAEAAAAGGEQEAQATAAAGEGDNGPGLQGPSREPPLADNLYDEDDDDEGEEEEEAAAAAIGYRDNLLFGDEIITNGFHSCESDEEDRASHASSSDWTPRPRIGPYTFVQQHLMIGTDPRTILKDLLPETIPPPELDDMTLWQIVINILSEPPKRKKRKDINTIEDAVKLLQECKKIIVLTGAGVSVSCGIPDFRSRDGIYARLAVDFPDLPDPQAMFDIEYFRKDPRPFFKFAKEIYPGQFQPSLCHKFIALSDKEGKLLRNYTQNIDTLEQVAGIQRIIQCHGSFATASCLICKYKVDCEAVRGDIFNQVVPRCPRCPADEPLAIMKPEIVFFGENLPEQFHRAMKYDKDEVDLLIVIGSSLKVRPVALIPSSIPHEVPQILINREPLPHLHFDVELLGDCDVIINELCHRLGGEYAKLCCNPVKLSEITEKPPRTQKELAYLSELPPTPLHVSEDSSSPERTSPPDSSVIVTLLDQAAKSNDDLDVSESKGCMEEKPQEVQTSRNVESIAEQMENPDLKNVGSSTGEKNERTSVAGTVRKCWPNRVAKEQISRRLDGNQYLFLPPNRYIFHGAEVYSDSEDDVLSSSSCGSNSDSGTCQSPSLEEPMEDESEIEEFYNGLEDEPDVPERAGGAGFGTDGDDQEAINEAISVKQEVTDMNYPSNKS

  • Molecular Weight

    Approximately 96 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of 20 mM Tris-HC1, 0.5 M NaCl, 6% Trehalose, pH 8.0.
2.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 8% trehalose.
Please refer to the lot-specific COA for specific buffer information.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

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Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

Assay Types
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • Experimental Validation Results for SIRT1 Protein, Human (His)
  • SIRT1 Protein, Human (His) Product Image