نتایج جستجو برای: catalytic subunit
تعداد نتایج: 158866 فیلتر نتایج به سال:
Protein phosphatase 2A (PP2A) is one of the most abundant serine-threonine phosphatases in mammalian cells. PP2A is a hetero-trimeric holoenzyme participating in a variety of physiological processes whose deregulation is often associated to cancer. The specificity and activity of this phosphatase is tightly modulated by a family of regulatory B subunits that dock the catalytic subunit to the su...
The higher plant ADP-glucose pyrophosphorylase is a heterotetramer consisting of two subunit types, which have evolved at different rates from a common ancestral gene. The potato tuber small subunit (SS) displays both catalytic and regulatory properties, whereas the exact role of the large subunit (LS), which contains substrate and effector binding sites, remains unresolved. We identified a mut...
Protein phosphatases involved in cellular regulation have been categorized functionally into two major types by substrate specificity and sensitivity to protein inhibitors. In this classification type-1 phosphatases are inhibited by the heat-stable protein inhibitor-2 (I-2), whereas type-2 phosphatases are considered insensitive to inhibition by this protein. This study demonstrates that the ph...
Previously, two forms of cAMP-dependent protein kinase catalytic subunit generated by mutually exclusive use of two internal exon cassettes (A1 and A2) were demonstrated in Aplysia neurons. Here, it is shown that there also exist catalytic subunits with alternative N termini derived from two exons, N1 and N2, expressed in combination with either of the internal cassettes. Processed transcripts ...
2-Azidoadenine [32P]nucleotide was bound specifically at catalytic or noncatalytic nucleotide binding sites on beef heart mitochondrial F1 ATPase. In both cases, photolysis resulted in nearly exclusive labeling of the beta subunit. The modified enzyme was digested with trypsin, and labeled peptides were purified by reversed-phase high-pressure liquid chromatography. Amino acid sequence analysis...
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