ATPase

American

[ey-tee-pee-eys, -eyz] / ˈeɪˈtiˈpi eɪs, -eɪz /

noun

Biochemistry.

adenosine triphosphatase: any of several enzymes that catalyze the hydrolysis of ATP to ADP and phosphate.

ATPase British

/ ˌeɪtiːˈpiːˌeɪz /

noun

adenosine triphosphatase; an enzyme that converts ATP to ADP

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ATPase

First recorded in 1945–50; ATP + -ase

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Medications such as omeprazole, pantoprazole, and esomeprazole work by blocking the H+, K+, ATPase enzyme, also known as the proton pump.

From Science Daily

Specifically, when ingested, the toxin targets the electrolyte pumps in the wall of the heart called the sodium potassium ATPase pump.

From Salon

This ubiquitin tag is recognized by Ubx2, which triggers the recruitment of a protein called Cdc48 — a type of enzyme called an AAA ATPase.

From Nature

The authors report that inhibiting the Na+, K+-ATPase in a human airway-cell model of cystic fibrosis prevented the beneficial effects of amphotericin B treatment.

From Nature

Normally, protons re-enter the mitochondrial matrix through a membrane-spanning protein complex called the proton ATPase.

From Nature

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023