phosphate group

American  

noun

Chemistry.

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

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Etymology

Origin of phosphate group

First recorded in 1950–55

Example Sentences

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

For example, they found that when an insulin receptor experiences decreased mobility, it acts less efficiently on IRS1, a molecule to which it usually adds a phosphate group.

From Science Daily

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

From Science Daily

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

A kinase is an enzyme that adds a phosphate group to another molecule, in this case a protein, to regulate important activities in the cell.

From Science Daily