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・ Proton Synchrotron
・ Proton Synchrotron Booster
・ Proton therapy
・ Proton Tiara
・ Proton Waja
・ Proton Wira
・ Proton-coupled electron transfer
・ Proton-coupled folate transporter
・ Proton-dependent oligopeptide transporter
・ Proton-enhanced nuclear induction spectroscopy
・ Proton-gated urea channel
・ Proton-K
・ Proton-M
・ Proton-PM
・ Proton-pump inhibitor
Proton-pumping pyrophosphatase
・ Proton-sensing G protein-coupled receptors
・ Proton-to-electron mass ratio
・ Proton-transfer-reaction mass spectrometry
・ Proton200k
・ Protonaegleria
・ Protonarthrini
・ Protonarthron
・ Protonation
・ Protonebula
・ Protonebula altera
・ Protonectarina
・ Protonema
・ Protonemacheilus longipectoralis
・ Protoneura


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Proton-pumping pyrophosphatase : ウィキペディア英語版
Proton-pumping pyrophosphatase

Two types of inorganic diphosphatase, very different in terms of both amino acid sequence and structure, have been characterised to date: soluble and transmembrane proton-pumping pyrophosphatases (sPPases and H(+)-PPases, respectively). sPPases are ubiquitous proteins that hydrolyse pyrophosphate to release heat, whereas H+-PPases, so far unidentified in animal and fungal cells, couple the energy of PPi hydrolysis to proton movement across biological membranes. The latter type is represented by this group of proteins. H+-PPases are also called vacuolar-type inorganic pyrophosphatases (V-PPase) or pyrophosphate-energised vacuolar membrane proton pumps. In plants, vacuoles contain two enzymes for acidifying the interior of the vacuole, the V-ATPase and the V-PPase (V is for vacuolar).〔
Two distinct biochemical subclasses of H+-PPases have been characterised to date: K+-stimulated and K+-insensitive.〔〔
==References==


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