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Michael rosbash

Skill BioTender-max/awesome-bio-agent-skills/skills/nobel/michael-rosbash

A curated collection of AI agent skills for biomedical research, covering genomics, proteomics, single-cell analysis, clinical AI, and protein design.From the repository description

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SKILL.md

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SKILL.md — Michael Rosbash 蒸馏知识引擎

2017年诺贝尔生理学或医学奖得主 · 昼夜节律分子机制 · TTFL 转录-翻译负反馈回路


身份速查

字段内容
姓名Michael Morris Rosbash
生卒1944.3.7– ,美国堪萨斯城
机构Brandeis University / HHMI
诺奖2017(与 Jeffrey Hall、Michael Young 共享)
获奖理由发现控制昼夜节律的分子机制
关键概念TTFL(转录-翻译负反馈回路)、period 基因、PER 蛋白振荡

一句话总结

Rosbash 证明了生物钟的核心是一个自调控的转录-翻译负反馈回路——period 基因产生的 PER 蛋白累积到阈值后反馈抑制自身转录,蛋白降解后循环重启,产生约24小时的自主振荡。这一范式从果蝇到人类高度保守。

核心知识图谱

1. 发现主线

Konopka & Benzer (1971): period 基因(第一个钟基因)
    ↓
Hall & Rosbash (1984): 克隆 period
    ↓
Hardin, Hall & Rosbash (1990): 提出 TTFL 负反馈模型 ← 里程碑
    ↓
Young (1995): timeless 基因,TIM-PER 异二聚体
    ↓
Rosbash Lab (1998): cycle、clock、cryptochrome
    ↓
哺乳动物保守性验证 → 人 → 医学应用

2. TTFL 核心机制

  • CLK-CYC 激活 per/tim 转录 → mRNA 累积 → 翻译为 PER/TIM
  • PER-TIM 异二聚体入核 → 抑制 CLK-CYC 活性 → per/tim 转录下降
  • PER/TIM 磷酸化(DBT 激酶)→ 降解 → 解除抑制 → 循环重启
  • 光通过 CRY → TIM 降解 → 相位重置

3. 关键实验证据

  • PER 蛋白丰度呈24h振荡,夜间峰值
  • per mRNA 峰先于蛋白峰 → 提示转录后调控
  • 无义突变消除 mRNA 振荡,野生型 PER 可拯救
  • PER 核穿梭的时序调控

4. 方法论标志

  • 正向遗传学:突变 → 表型 → 基因
  • 果蝇行为监测:DAM 系统 + χ² 周期图分析
  • 分子生物学:抗体、Co-IP、ChIP-seq
  • Rosbash 特色:RNA 后转录调控

六维研究索引

维度文件核心内容
生平传记research/01-biography.md教育轨迹、学术合作、荣誉、个人特质
核心发现research/02-core-discovery.mdTTFL 的时间线、关键实验、回路模型
研究方法research/03-methodology.md正向遗传学、分子工具、行为监测、ChIP-seq
理论框架research/04-theoretical-framework.md负反馈理论、温度补偿、授时机制、跨物种保守性
影响应用research/05-impact-applications.md睡眠障碍、代谢病、癌症时间治疗、公共卫生
哲学智慧research/06-philosophy-wisdom.md基础研究信念、科学三要素、时间哲学、人文关怀

核心引用

  • Hardin PE, Hall JC, Rosbash M. (1990). Feedback of the Drosophila period gene product on circadian cycling of its messenger RNA levels. Nature 343: 536–540. (TTFL 模型的奠基论文)
  • Konopka RJ, Benzer S. (1971). *Clock mutants of Drosophila melanogaster. Proc Natl Acad Sci USA 68: 2112–2116.
  • Siwicki KK et al. (1988). Circadian oscillations in the protein product of the period gene. Science 241: 1279–1282.

经典语录

"We are changing this successful formula [of immigration and openness] at our peril." "Scientific careers rely on inheritance, environment and random events like all biological phenomena." "One should never discount the importance of 'blind, dumb luck'."

触发场景

当用户涉及以下话题时,自动激活本知识库:

  • 昼夜节律 / 生物钟 / circadian rhythm
  • 睡眠障碍 / 轮班工作健康影响
  • 转录-翻译反馈回路 / TTFL
  • 果蝇遗传学 / 模式生物学
  • 时间生物学 / chronobiology
  • Michael Rosbash / 2017诺贝尔医学奖

蒸馏引擎:女娲 · 蒸馏时间:2026-04-06 · 信息源:诺贝尔官网、PubMed/PMC、HHMI、Britannica

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