نتایج جستجو برای: aminopeptidase
تعداد نتایج: 3695 فیلتر نتایج به سال:
The leucine aminopeptidase of Aeromonas proteolytica (EC 3.4.11.10) is a monomeric metalloenzyme having the capacity to bind two Zn2+ atoms in the active site. Structural information of this relatively small aminopeptidase that could illuminate the catalytic mechanism of the metal ions is lacking; hence, we have obtained sequences from the purified enzyme, cloned the corresponding gene, and exp...
The three-dimensional structures of native bovine lens leucine aminopeptidase (EC 3.4.11.1) and its complex with bestatin, a slow-binding inhibitor, have been solved and exhaustively refined. The mode of binding of bestatin to leucine aminopeptidase may be similar to that of a tetrahedral intermediate that is thought to form during peptide bond hydrolysis. Bestatin binds in the active site with...
These studies on leucine aminopeptidase demonstrate that it has the same significance as alkaline phosphatase in relation to jaundice.
The lateral heterogeneity of rat liver plasma membranes was examined by fragmentation and fractionation by counter-current distribution in an aqueous two-phase polymer system. The distribution pattern was analysed by plotting the relative specific activities of marker components against each other. By this analysis asialo-orosomucoid receptors were found in a domain separated from domains conta...
In the current paper, three activity-based colorimetric and ratiometric fluorescent probes based on a naphthalimide fluorophore were well designed and synthesized, which can be recognized and hydrolyzed by aminopeptidase N (APN) at both the enzymatic and cellular level by following the fluorescent emission wavelength change from blue to green light. As a result, these molecules were successfull...
Streptomyces griseus leucine aminopeptidase (SGAP), which has two zinc atoms in its active site, is clinically important as a model for understanding the structure and mechanism of action of other metallopeptidases. SGAP is a calcium-activated and calcium-stabilized enzyme, and its activation by calcium correlates with substrate specificity. In our previous study, we found a non-calcium-modulat...
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