In Memoriam

In memoriam: Guido Guidotti

ASBMB Today Staff
Aug. 16, 2021

Guido Guidotti, a professor of biochemistry at Harvard University who studied the functions of proteins within membranes in transport and signal processing, died April 5 in Newton, Massachusetts. He was 87.

Guido Guidotti

Born Nov. 3, 1933, in Florence, Italy, Guidotti spent most of his early life in Naples. After World War II, he visited Illinois as an American Field Service student. He returned to do premedical studies at Milliken College, then earned an M.D. at the Washington University School of Medicine in St. Louis. He was an intern and resident at Barnes Hospital before earning a Ph.D. in biochemistry from Rockefeller University. He took a position at Harvard in 1963 and remained there until his death.

In his early research, Guidotti used his own blood to determine the sequence and biochemical properties of hemoglobin before moving on to the study of membrane proteins. He identified structures and topologies of numerous proteins and enzymes as well as studying hormone regulation of membrane protein activity. He discovered that the protein CD39, in the cell membrane, hydrolyzes extracellular adenosine triphosphate, ensuring that this extracellular ATP is present at an appropriate concentration.

A member of the American Society for Biochemistry and Molecular Biology since 1968, Guidotti served on the editorial board of the Journal of Biological Chemistry from 1971 to 1976 and published 120 papers in the JBC. He also served on the editorial boards of the Journal of Membrane Biology and Molecular Biology of the Cell.

Nancy Kleckner, Guidotti's wife and a Harvard colleague, wrote in a remembrance, “From the perspective of the outside world, Guido's scientific work was seminally important in many respects … Guido's research was motivated only by his intellectual curiosity, his delight in figuring out how life works, and his joy in enabling the work and lives of the people he trained and with whom he worked. Scientific credit was not a priority.”

Enjoy reading ASBMB Today?

Become a member to receive the print edition four times a year and the digital edition monthly.

Learn more
ASBMB Today Staff

This article was written by a member or members of the ASBMB Today staff.

Get the latest from ASBMB Today

Enter your email address, and we’ll send you a weekly email with recent articles, interviews and more.

Latest in People

People highlights or most popular articles

How undergrad research catalyzes scientific careers
Essay

How undergrad research catalyzes scientific careers

Aug. 27, 2025

Undergraduate research doesn’t just teach lab skills, it transforms scientists. For Antonio Rivera and Julissa Cruz–Bautista, joining a lab became a turning point, fostering critical thinking, persistence and research identity.

Simcox and Gisriel receive mentoring award
Member News

Simcox and Gisriel receive mentoring award

Aug. 25, 2025

They were honored for contributing their time, knowledge, energy and enthusiasm to mentoring postdocs in their labs.

ASBMB names 2025 Marion B. Sewer scholarship recipients
Society News

ASBMB names 2025 Marion B. Sewer scholarship recipients

Aug. 21, 2025

Ten undergraduates interested in biochemistry and molecular biology will each receive $2,000 toward their tuition and related educational costs.

Attie named honorary professor
Member News

Attie named honorary professor

Aug. 18, 2025

This award includes $100,000 of research funding and recognizes faculty who have made major contributions to the advancement of knowledge through their research, teaching and service activities.

Meet the 2025 SOC grant awardees
Outreach

Meet the 2025 SOC grant awardees

Aug. 15, 2025

Five science outreach and communication projects received up to $1,000 from ASBMB to promote the understanding of molecular life science.

Unraveling cancer’s spaghetti proteins
Profile

Unraveling cancer’s spaghetti proteins

Aug. 13, 2025

MOSAIC scholar Katie Dunleavy investigates how Aurora kinase A shields oncogene c-MYC from degradation, using cutting-edge techniques to uncover new strategies targeting “undruggable” molecules.