pyrophosphatasen.
/ˌpʌɪrəʊˈfɒsfəteɪz/, U.S. /ˌpaɪroʊˈfɑsfəˌteɪz/, /ˌpaɪroʊˈfɑsfəˌteɪs/ Biochemistry.
Any enzyme which hydrolyses a pyrophosphate molecule to two phosphate molecules; spec. (more fully inorganic pyrophosphatase) an enzyme which hydrolyses inorganic (free) pyrophosphate, forming orthophosphate.
ΚΠ
1928 H. D. Kay in Biochem. Jrnl. 22 1446 Both kidney extract and takadiastase..contain, therefore, a pyrophosphatase.
1951 Jrnl. Biol. Chem. 192 87 Bauer..found that autolysates of slowly dried bottom yeast were a rich source of inorganic pyrophosphatase.
1970 R. W. McGilvery Biochemistry xi. 209 The inorganic pyrophosphate..is in turn hydrolyzed by the ubiquitous inorganic pyrophosphatase with an additional liberation of free energy.
2005 Jrnl. Biochem. & Biophysical Methods 63 161 ADP-ribose pyrophosphatase (ADPRase) hydrolyzes ADP-ribose to ribose-5-phosphate and AMP.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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n.1928- contra-seasonal
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