phosphocreatine

noun

phos·​pho·​cre·​a·​tine ˌfäs-(ˌ)fō-ˈkrē-ə-ˌtēn 

: a compound C₄H₁₀N₃O₅P of creatine and phosphoric acid that is found especially in vertebrate muscle where it is an energy source for muscle contraction

Examples of phosphocreatine in a Sentence

Recent Examples on the Web

In the body, creatine is formed from amino acids and replenishes phosphocreatine, an important energy source for muscle cells. —Donavyn Coffey, TIME, 1 Apr. 2024

Meanwhile, creatine monohydrate supports the natural production of phosphocreatine in the muscles, which can improve strength, recovery, and energy. —Dallas News, 22 Dec. 2022

Levels of phosphocreatine, which can act as a backup to mobilize muscles when there is no ATP, also increased while Sherpas climbed, but decreased as Lowlanders climbed to higher altitudes. —Nathaniel Scharping, Discover Magazine, 24 May 2017

First was the levels of phosphocreatine, which allows muscles to continue contracting even when adenosine triphosphate, or ATP (a key molecule in transporting chemical energy within the cell), runs out. —Jason Daley, Smithsonian, 24 May 2017

Word History

Etymology

International Scientific Vocabulary

First Known Use

1927, in the meaning defined above

Medical Definition

phosphocreatine

noun

phos·​pho·​cre·​atine ˌfäs-(ˌ)fō-ˈkrē-ə-ˌtēn 

: a compound C₄H₁₀N₃O₅P of creatine and phosphoric acid that is found especially in vertebrate muscle where it is an energy source for muscle contraction

called also creatine phosphate