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・ Phostria celsusalis
・ Phostria chrysomera
・ Phostria citrinalis
・ Phostria clementalis
・ Phostria cleodalis
・ Phostria concolor
・ Phostria crithonalis
・ Phostria delilalis
・ Phostria diffusimarginalis
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・ Phostria dispila
・ Phostria dohrnii
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Phosphopantothenate—cysteine ligase
・ Phosphopantothenoylcysteine decarboxylase
・ Phosphopentomutase
・ Phosphopentose epimerase
・ Phosphopeptide
・ Phosphophyllite
・ Phosphopolyprenol glucosyltransferase
・ Phosphoprotein
・ Phosphoproteomics
・ Phosphopyruvate dehydrogenase phosphatase
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・ Phosphor (album)
・ Phosphor banded stamp
・ Phosphor bronze
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Phosphopantothenate—cysteine ligase : ウィキペディア英語版
Phosphopantothenate—cysteine ligase

In enzymology, a phosphopantothenate-cysteine ligase also known as phosphopantothenoylcysteine synthetase (PPCS) is an enzyme that catalyzes the chemical reaction which constitutes the second of five steps involved in the conversion of pantothenate to Coenzyme A. The reaction is:
:NTP + (R)-4'-phosphopantothenate + L-cysteine \rightleftharpoons NMP + diphosphate + N-()-L-cysteine
The nucleoside triphosphate (NTP) involved in the reaction varies from species to species. Phosphopantothenate—cysteine ligase from the bacterium ''Escherichia coli'' uses cytidine triphosphate (CTP) as an energy donor, whilst the human isoform uses adenosine triphosphate (ATP).
== Nomenclature ==

This enzyme belongs to the family of ligases, specifically those forming carbon-nitrogen bonds as acid-D-amino-acid ligases (peptide synthases). The systematic name of this enzyme class is (R)-4'-phosphopantothenate:L-cysteine ligase. This enzyme is also called phosphopantothenoylcysteine synthetase.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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