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     Quick Analysis Plan


    Your requested “Best Evidence: SIRT6 promoter luciferase dose response → Hill EC50/Emax” **cannot be extracted from the provided research data**. None of the included papers provide a **dose–response luciferase titration** of **SIRT6 promoter activity** with a fitted **Hill-model EC50 and Emax**. What *is* available in the provided set are **luciferase reporter assays** demonstrating SIRT6-linked regulatory effects (e.g., endothelial ICAM-1 transcription reporters) and multiple mechanistic SIRT6 pathways, but **not the specific promoter dose–response parameters you asked for**. For example, one study uses luciferase reporter assays in the context of oxLDL→DNMT1→SIRT6→MRTF-A→ICAM-1, but does not report a SIRT6 promoter titration with Hill EC50/Emax.


     Long Analysis Plan


    Evidence-battle-test: “SIRT6 promoter luciferase dose response → Hill EC50/Emax”

    Claim to evaluate: “Best evidence is a search for SIRT6 promoter luciferase dose response, yielding Hill EC50 and Emax.”
    What you provided to assess: a set of full-text-derived extracts across several SIRT6-related mechanisms.

    1) Do we actually have the requested assay readout?

    Your requested evidence requires all of the following (simultaneously):
    • SIRT6 promoter driving luciferase (not merely SIRT6 targeting a different promoter; not merely a luciferase reporter unrelated to SIRT6 promoter activity).
    • Dose-response titration (multiple concentrations of some perturbation/compound).
    • Quantitative curve fit using a Hill model reporting EC50 (and typically a Hill slope) and Emax.
    In the provided extracts, none explicitly report the SIRT6 promoter dose–response luciferase curve nor Hill-parameterized EC50/Emax.

    2) What luciferase evidence exists in the provided set?

    Below is a relevance audit: do the provided papers contain luciferase at all, and if yes, is it SIRT6 promoter dose–response with Hill EC50/Emax?
    DOI Reporter type (from extract) Dose-response + Hill EC50/Emax? Bottom line
    10.1038/s42003-022-00903-y Luciferase reporter assays used to quantify ICAM-1 transcriptional regulation in endothelial contexts (oxLDL→DNMT1→SIRT6→MRTF-A). No dose–response Hill EC50/Emax for SIRT6 promoter provided in the extract. Related luciferase presence, but wrong target and missing Hill parameters.
    10.1016/j.yjmcc.2020.01.002 No luciferase described in the provided extract (mechanism is macrophage scavenger receptor MSR1 via c-MYC/SIRT6). N/A Not relevant to SIRT6 promoter luciferase dose–response.
    10.1016/j.domaniend.2020.106513 Dual-luciferase reporter assays test miR-33a targeting of SIRT6 3′UTR (mutant vs wild-type 3′UTR context) in 293T cells. No SIRT6 promoter dose–response Hill EC50/Emax for promoter activity provided. Luciferase exists but it’s 3′UTR interaction, not promoter activity.
    Citations for the luciferase-linked statements above:

    3) Why the proposed “best evidence” is logically underspecified

    Even if a paper measures luciferase with SIRT6 regulatory sequences, “Hill EC50/Emax” requires:
    • Defined perturbation (e.g., compound concentration, stimulation intensity, or genetic titration) that is varied across multiple doses.
    • Sufficient dose spacing and replicates to justify a Hill fit (Hill slope can be unstable with sparse doses).
    • Explicit promoter construct identity (which SIRT6 promoter fragment, cell type, minimal promoter backbone, and whether luciferase is normalized to a co-reporter).
    The provided evidence set does not contain those dose–response curve details for SIRT6 promoter activity.

    4) Skeptical synthesis from what we do have (what SIRT6 luciferase evidence can/can’t tell us)

    Known from provided extracts (relevant but not your exact target):
    • SIRT6 is integrated into transcriptional control networks (e.g., endothelial ICAM-1 transcription via MRTF-A acetylation and upstream promoter methylation logic) where luciferase reporters are used to quantify transcriptional output.
    • SIRT6 can be regulated post-transcriptionally via miRNA targeting, where dual-luciferase assays test SIRT6 3′UTR responsiveness to miR-33a.
    Not provided in the dataset you gave:
    • No explicit SIRT6 promoter luciferase dose–response curve suitable for Hill EC50/Emax extraction.
    • No raw titration series values (concentration vs normalized luciferase) that would allow re-fitting a Hill model.

    5) What would disprove/upgrade the “best evidence” claim?

    To upgrade your “best evidence” target, you’d need one or more studies that actually report:
    • Concentration series for an intervention that modulates SIRT6 promoter-driven luciferase.
    • Normalized luciferase outputs across doses (ideally with raw points or supplementary tables).
    • A fitted Hill model with EC50 and Emax (or enough data to re-fit them).
    In contrast, if studies only report single-dose luciferase or luciferase tied to other promoters/UTRs, then the “Best Evidence” statement is effectively not evidenced by the current paper set.

    Next best BGPT move (one-click)

    Your prompt is an evidence-finding instruction; the provided extracts are insufficient. Run a dedicated science agent to locate actual SIRT6 promoter luciferase dose–response data and extract/fit Hill EC50/Emax.


    Feedback:    

    Updated: March 24, 2026

     Top Data Sources ExportMCP


     Hypothesis Graveyard


    A Hill EC50/Emax derived from a SIRT6-targeting 3′UTR dual-luciferase assay would be logically invalid for “SIRT6 promoter activity,” because the regulatory layer is post-transcriptional rather than transcriptional.


    Using luciferase readouts for a downstream gene (e.g., ICAM-1) as a surrogate for SIRT6 promoter potency would be a category error; mechanism and construct are different.

     Science Art


    Best Evidence: Search for SIRT6 promoter luciferase dose response Hill EC50 Emax Science Art

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