Label-free detection of the interaction between hexahistidine-tagged human κ-opioid receptor membrane protein and anti-His antibody is demonstrated in liquid by an optical microelectromechanical system utilizing electromagnetically actuated microresonators. Shift in resonance frequency due to accretion of mass on the sensitive surface of microresonators is monitored via an integrated optical re...

We evaluate the ability of hexahistidine (His6) tags on peptide and protein substrates to recruit deoxyribozymes for modifying those substrates. For two different deoxyribozymes, one that creates tyrosine-RNA nucleopeptides and another that phosphorylates tyrosine side chains, we find substantial improvements in yield, kobs, and Km for peptide substrates due to recruiting by His6/Cu(2+). Howeve...

calling tradition is among clearest areas which can be found in modern dramatic literary and artistic texts.  the ancient hero is quite well known  and since long has  found his place in literature and art of different nations especially in legends, epics, folk tales, oral literature and dramatic texts such that it was in a battle with other elements and defeated them. abou khalil alqabbani, th...

Khalil Gibran Muhammad is the Ford Foundation Professor of History, Race and Public Policy at Harvard Kennedy School. He directs Institutional Antiracism Account- ability Project former Director Schomburg Center for Research in Black Culture, a division New York Library world’s leading library archive global black history. Before Center, was an associate professor Indiana University. recently s...

We present a molecular theory to study the adsorption of different species within pH-sensitive hydrogel nanofilms. The theoretical framework allows for a molecular-level description of all the components of the system, and it explicitly accounts for the acid-base equilibrium. We concentrate on the adsorption of hexahistidine, one of the most widely used tags in bio-related systems, particularly...

nizar qabani, a great modern arab poet, is best known for his poetry on women and politics. however in his political poems there are some conspicuous realistic veins which reflect the special effects of geography, customs, religion, traditions, and thought across the arab world on realism as a literary school. the mission of arabic literature is to reflect the realities of arab societies, which...