Words similar to ppp
Example sentences for: ppp
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On the basis of sequence homo logy and similarity of three-dimensional structures, phosphoprotein phosphatases (PPases) have been classified into three families designated PPP, PPM, and PTP [reviewed in [ 1 2 3 ] . The PPP and PPM families are comprised of phosphoserine- and phosphothreonine-specific enzymes whereas the PTP family consists of phosphotyrosine-specific and dual-specificity enzymes [ 4 ] . The major members of the PPP family are PP1, PP2A, and PP2B (calcineurin) class of phosphatases.
While the catalytic core is generally necessary and sufficient for the phosphohydrolase activity of PPP enzymes, the residues outside the core play critical roles in binding accessory proteins or small molecules that modulate the catalytic activity [ 25 26 27 28 29 ] . Specifically in the PP5 class, the N-terminus has been shown to contain three TPR motifs [ 5 6 7 8 ] , the three-dimensional structure of which is now also available [ 8 ] . Interestingly, the N-terminal sequence of PfPP5 was the longest of all, and seemed to contain four TPR motifs instead of three (Fig.
Due to the high NADPH production in the PPP, the TCA cycle flux was optimally reduced and functioned only to produce the biosynthetic precursors.
In Table 2, we compare these estimates with average revenue per piece converted to U.S. cents using OECD's PPP for 1999.
PP5 and its homologs in other species represent a subfamily of PPP enzymes distinguished by the presence of an N-terminal domain containing multiple TPR repeats.
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