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Culture · Biography

1925–2019

Paul Greengard

Paul Greengard was an American neuroscientist who investigated what happens inside nerve cells after chemical signals reach them. His research helped establish how biochemical pathways and protein modification contribute to neuronal communication.

United States New York City, United States Updated 27 October 2026
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In this biography

Quick facts

Born
11 December 1925
Died
13 April 2019
Birthplace
New York City, United States
Nationality
Not independently established
Known for
Biochemical mechanisms of neurotransmitter action and protein phosphorylation
Birth
11 December 1925, New York
Doctorate
Johns Hopkins, 1953
Rockefeller
Faculty from 1983
Death
13 April 2019, New York

Why this life matters

He connected electrical questions about the nervous system with biochemical experiments, then used his public recognition to support women in biomedical research.

Timeline

Key moments

  1. Birth

    Born in New York; his mother died in childbirth.

  2. Hamilton College

    Graduated after wartime naval service.

  3. Doctorate

    Completed biophysics research at Johns Hopkins.

  4. Industrial departure

    Left Geigy before visiting academic appointments.

  5. Dopamine paper

    Coauthored a study of enzyme activity in rat-brain preparations.

  6. Rockefeller

    Moved from Yale to Rockefeller University.

  7. Nobel Prize

    Shared the award for signal-transduction discoveries.

  8. Death

    Died on 13 April.

Physics training opened a route into biology

Greengard was born in New York on 11 December 1925. His mother, Pearl Meister, died during his birth. After service as a naval electronics technician during the Second World War, he studied mathematics and physics at Hamilton College, graduating in 1948. He considered theoretical physics but chose biophysics, partly because of concern about the available research support’s relationship with atomic weapons. His autobiographical account presents that decision as both an intellectual and a personal choice. It led towards nerve-cell research rather than an immediate plan to study dopamine.

Sources for this section: [1] · [2]

Electrical and biochemical approaches could be combined

He began graduate work with a group that moved from Pennsylvania to Johns Hopkins. H. Keffer Hartline introduced him to laboratory research, while Frank Brink and Sidney Colowick jointly supervised his doctorate, completed in 1953. A lecture by Alan Hodgkin encouraged him to ask what biochemical work could add to an understanding of electrical activity. Postdoctoral periods in Britain and the Netherlands broadened that training. The resulting career drew from several laboratories and methods; it did not depend on declaring electrical measurements unimportant or chemically mediated signalling a new discovery without predecessors.

Sources for this section: [1]

An industrial role preceded the Yale programme

After NIH work he directed biochemistry at Geigy Research Laboratories. His account describes frustration with limits on exploratory research and his departure in 1967. Visiting appointments preceded a professorship at Yale, where the early signal-transduction programme developed. His 1972 paper with John Kebabian and Gary Petzold examined dopamine-sensitive adenylate cyclase activity in rat-brain homogenates. It compared chemical responses and proposed a relationship with dopamine receptors. The enzyme measurement and the paper’s historical interpretation should remain distinguishable; the abstract alone does not identify a purified receptor molecule or a human behavioural outcome.

Sources for this section: [1] · [4]

Protein modification supplied an intracellular mechanism

Greengard’s Nobel lecture explains a programme concerned with slow synaptic transmission. Chemical signals can activate intracellular pathways, including cyclic AMP and protein kinases; adding or removing phosphate groups can alter how particular proteins function. These processes help explain how a signal can change a cell’s response rather than simply trigger a brief electrical event. The lecture credits earlier endocrine research and colleagues who investigated the relevant enzymes. The conceptual advance was a connection between signalling and biochemical regulation, not the claim that all neurons respond identically or that one pathway explains every brain function.

Sources for this section: [3] · [2]

Rockefeller became the setting for later work

He moved to Rockefeller in 1983 after fifteen years at Yale. The university’s obituary describes later investigations of neuronal pathways and disease-related questions, together with a long record of training and collaboration. Research directed towards possible therapies is not the same as proof that a particular treatment is effective. His 2000 Nobel Prize, shared with Carlsson and Kandel, recognised signal-transduction discoveries. Greengard received one third. The award placed his biochemical programme beside related but distinct investigations, rather than combining all three researchers into the authors of one experiment.

Sources for this section: [1] · [5] · [2]

An award honoured the mother he never knew

With his wife, sculptor Ursula von Rydingsvard, Greengard used his Nobel Prize money to establish an award for outstanding women in biomedical research. He named it after Pearl Meister Greengard. Rockefeller’s account connects the decision with his concern about unequal recognition in science. The prize’s purpose belongs beside the laboratory work in a biography, while its individual recipients and later administration have their own records. Greengard died on 13 April 2019. His legacy includes both a biochemical way of asking questions about neurons and an effort to widen who receives scientific honours.

Sources for this section: [5] · [6] · [2]

Quick answers

Frequently asked questions about Paul Greengard

Was Greengard’s work only electrical recording?
No. His programme investigated biochemical processes through which signals modify cell function.
Who was Pearl Meister Greengard?
She was his mother, who died in childbirth, and the person after whom he named the women-in-science prize.

Keep exploring

Lives connected to this story

  • Eric R. Kandel

    Compare cellular learning experiments with biochemical signal-transduction measurements.

  • Roger Y. Tsien

    Explore molecular probes and the interpretation of biological measurements.

  • Torsten N. Wiesel

    Read another Rockefeller research and institutional-leadership career.

Sources and further reading

Explore the evidence

These references support the biography and offer further reading. Official records, first-person accounts and independent reporting provide different perspectives; image records document attribution and licensing.

  1. 1. Nobel Foundation; Paul GreengardPaul Greengard: autobiographical account

    Career account read, including Hamilton1948,Hopkins1953,Geigy1967,Yale and Rockefeller1983; conflicting obituary age-based accounts elsewhere not substituted.

  2. 2. Nobel FoundationPaul Greengard: prize facts
  3. 3. Paul Greengard; Nobel FoundationThe Neurobiology of Dopamine Signaling, 8 December 2000

    Actual20page scanned lecture acquired; PDF1–2, printed328–329 visually read for fast/slow transmission, cyclicAMP, kinase/phosphatase and credited Kebabian work. Historical generalisations not projected as exhaustive modern clinical facts.

  4. 4. J.W. Kebabian, G.L. Petzold and P. Greengard; Europe PMCDopamine-sensitive adenylate cyclase in caudate nucleus of rat brain, and its similarity to the dopamine receptor, PNAS69,2145–2149,1972: original abstract

    Actual original abstract/bibliographic fields read, PMID4403305. Rat-brain homogenate enzyme activity and pharmacological comparisons. Authors’ proposed receptor relationship is historical interpretation, not modern proof that enzyme itself is the receptor. FullTextXML500; no fullpaper claimed.

  5. 5. The Rockefeller UniversityCelebrating and remembering Paul Greengard,14April2019

    Actual institutional obituary selectedopening, biochemical programme and prize-founding paragraphs read.13April2019death,1983Rockefellerentry; institutional therapy aspirations not claimed as independent clinical efficacy.

  6. 6. The Rockefeller UniversityPearl Meister Greengard Prize: founders
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