# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/roger-y-tsien
# Generated: 2026-09-07T20:05:03.413Z

schema: https://schema.org/Person
url: "https://fame.am/person/roger-y-tsien"
name: "Roger Y. Tsien"
slug: "roger-y-tsien"
description: "Roger Yonchien Tsien was an American biochemist. He was a professor of chemistry and biochemistry at the University of California, San Diego, and was awarded the Nobel Prize in Chemistry in 2008 for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Tsien was also a pioneer of calcium imaging."
tagline: "American biochemist (1952-2016)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Roger_Tsien-press_conference_Dec_07th%2C_2008-2.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1952-02-01"
deathDate: "2016-08-24"
livingStatus: "DECEASED"
scores:
  popularity:           54.64
  momentum:             0
  historical:           22.139212
  currentAttention:     0
  sourceConfidence:     65
  profileCompleteness:  75
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
platforms:
  - platform:  "WEBSITE"
    url:       "http://www.tsienlab.ucsd.edu/"
sources:
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    title: "Wikiquote"
    type:  "WEBSITE"
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    type:  "WIKIPEDIA"
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    type:  "WIKIPEDIA"
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    title: "Rocer Tsen"
    type:  "WIKIPEDIA"
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    title: "Роджэр Цьсен"
    type:  "WIKIPEDIA"
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    title: "Роджър Циен"
    type:  "WIKIPEDIA"
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    title: "রজার ওয়াই. তিসিয়েন"
    type:  "WIKIPEDIA"
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    title: "Roger Yonchien Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Tsien"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Roger_Tsien"
    title: "Roger Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Y. Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Y. Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Y. Tsien"
    type:  "WIKIPEDIA"
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    type:  "WIKIPEDIA"
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    title: "Roger Y. Tsien"
    type:  "WIKIPEDIA"
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    title: "Roger Tsien"
    type:  "WIKIPEDIA"
  - url: "https://gd.wikipedia.org/wiki/Roger_Y._Tsien"
    title: "Roger Y. Tsien"
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    title: "Roger Y. Tsien"
    type:  "WIKIPEDIA"
  - url: "https://hak.wikipedia.org/wiki/Chhi%C3%A8n_Y%C3%BAn-khien"
    title: "Chhièn Yún-khien"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%A8%D7%95%D7%92'%D7%A8_%D7%98%D7%A1%D7%99%D7%99%D7%9F"
    title: "רוג'ר טסיין"
    type:  "WIKIPEDIA"
  - url: "https://hy.wikipedia.org/wiki/%D5%8C%D5%B8%D5%BB%D5%A5%D6%80_%D5%91%D5%AB%D5%A5%D5%B6"
    title: "Ռոջեր Ցիեն"
    type:  "WIKIPEDIA"
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    title: "Roger Tsien"
    type:  "WIKIPEDIA"
  - url: "https://io.wikipedia.org/wiki/Roger_Yonchien_Tsien"
    title: "Roger Yonchien Tsien"
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    title: "Roger Tsien"
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  - url: "https://www.wikidata.org/wiki/Q200470"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump