Skip to main content

Agre, Peter Courtland

Peter Courtland Agre, 1949–, American molecular biologist, b. Northfield, Minn., M.D. Johns Hopkins, 1974. From 1981 to 2005, Agre taught at Johns Hopkins in the departments of medicine and cell biology. He joined the Duke Univ. Medical Center in Durham, N.C., in 2005 as vice chancellor for science and technology. Agre shared the 2003 Nobel Prize in Chemistry with Roderick MacKinnon for discoveries concerning channels in cell membranes, with Agre's work focusing on water channels and McKinnon's on ion channels. Agre is credited with discovering how water is transported into and out of cells, facilitated by water-channel proteins called aquaporins. Aquaporins are part of the blood-brain barrier and are also associated with water transport in skeletal muscle, the lungs, and the kidneys.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Agre, Peter Courtland." The Columbia Encyclopedia, 6th ed.. . 21 Jan. 2019 <>.

"Agre, Peter Courtland." The Columbia Encyclopedia, 6th ed.. . (January 21, 2019).

"Agre, Peter Courtland." The Columbia Encyclopedia, 6th ed.. . Retrieved January 21, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.