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phosphate group

American  

noun

Chemistry.
  1. the group or radical obtained by removal of one or more hydrogen atoms from phosphoric acid.


Etymology

Origin of phosphate group

First recorded in 1950–55

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.

The protein ZAK -- a so-called kinase, that is, an enzyme which activates other molecules by transferring a phosphate group to them -- plays a central role in controlling this stress response.

From Science Daily • Nov. 25, 2025

Ghosh said the conflict stems from problematic phosphorylation, the attachment of a phosphate group to the G protein molecule.

From Science Daily • Jun. 4, 2024

Nucleotides are composed of three distinctive parts: a sugar molecule, a phosphate group and one of the four nucleobases adenine, thymine, guanine and cytosine.

From Science Daily • Mar. 8, 2024

Each strand is composed of nucleotides bonded together covalently between the phosphate group of one and the deoxyribose sugar of the next.

From Textbooks • Apr. 25, 2013

The charging of the battery, in which ADP and a free phosphate group are combined to restore ATP, is coupled to the oxidative process; the close linking is known as coupled phosphorylation.

From "Silent Spring" by Rachel Carson