نتایج جستجو برای: covalently attachment

تعداد نتایج: 55663  

Journal: :Biochemical Society transactions 2002
L Thöny-Meyer

Post-translational maturation of c-type cytochromes involves covalent attachment of haem to the apocytochrome polypeptide by two thioether bonds. In bacteria, haem attachment occurs in the periplasm, after the separate translocation of haem and the polypeptide across the cytoplasmic membrane. In Escherichia coli, delivery and attachment of the cofactor requires eight or nine specific proteins, ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Carolyn I Hall Michael L Reese Eranthie Weerapana Matthew A Child Paul W Bowyer Victoria E Albrow Jeralyn D Haraldsen MacDonald R Phillips Edgar Deu Sandoval Gary E Ward Benjamin F Cravatt John C Boothroyd Matthew Bogyo

Toxoplasma gondii is a member of the phylum Apicomplexa that includes several important human pathogens, such as Cryptosporidium and Plasmodium falciparum, the causative agent of human malaria. It is an obligate intracellular parasite that can cause severe disease in congenitally infected neonates and immunocompromised individuals. Despite the importance of attachment and invasion to the succes...

Journal: :Colloids and surfaces. B, Biointerfaces 2012
Jeong Hyun Seo Dong-Sik Shin Priam Mukundan Alexander Revzin

Micropatterning strategies often call for attachment of non-fouling biomaterials and immobilization of proteins in order to create biosensing surfaces or to control cell-surface interactions. Our laboratory has made frequent use of hydrogel photolithography - a micropatterning process for immobilizing poly(ethylene glycol) (PEG) hydrogel microstructures on glass surfaces. In the present study w...

Journal: :Nanoscale 2013
Seyla Azoz Jie Jiang Gayatri Keskar Charles McEnally Alp Alkas Fang Ren Nebojsa Marinkovic Gary L Haller Sohrab Ismail-Beigi Lisa D Pfefferle

As hybrid nanomaterials have myriad of applications in modern technology, different functionalization strategies are being intensely sought for preparing nanocomposites with tunable properties and structures. Multi-Walled Carbon Nanotube (MWNT)/CdSe Quantum Dot (QD) heterostructures serve as an important example for an active component of solar cells. The attachment mechanism of CdSe QDs and MW...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده اقتصاد و علوم اجتماعی 1390

abstract deviation or in other words committing a crime is literally a social problem. this research that was conducted in 1389 and 1390 has tried to investigate the causes of crimes committed by young male inmates qazvin central prison and effective variables on their tendency to deviation. accordingly after collecting theoretical framework and offering theoretical model including both hirsch...

Journal: :The Journal of biological chemistry 2003
James W A Allen Paul D Barker Stuart J Ferguson

Cytochrome b562 is a periplasmic Escherichia coli protein; previous work has shown that heme can be attached covalently in vivo as a consequence of introduction of one or two cysteines into the heme-binding pocket. A heterogeneous mixture of products was obtained, and it was not established whether the covalent bond formation was catalyzed or spontaneous. Here, we show that coexpression from pl...

Journal: :Acta biochimica Polonica 2014
Zofia Hrydziuszko Agnieszka Dmytryk Paulina Majewska Katarzyna Szymańska Jolanta Liesiene Andrzej Jarzębski Jolanta Bryjak

In bioprocesses lipases are typically used in immobilized form, irrespective of type of reaction systems, to ensure an even distribution of catalysts in water restricted media and/or to facilitate separation and reuse. In these studies we report on the selection of appropriate enzyme-carrier preparation for hydrolysis reaction in aqueous and biphasic systems and transesterification in organic s...

1997
Brian L. Frey Robert M. Corn

A monolayer of poly(L-lysine) (PL) is attached covalently via amide bonds to an alkanethiol self-assembled monolayer (SAM) on a gold surface. The amide bond is formed in two steps: the terminal carboxylic acid groups of an 11-mercaptoundecanoic acid (MUA) SAM are first activated to the N-hydroxysulfosuccinimide (NHSS) ester, followed by reaction of this MUA-NHSS ester monolayer with the amino g...

2017
Z. Shariatinia

The structures of boron-doped fullerene B-C59 (1), as a drug delivery system (DDS), two phosphoramides (2 and 3), which are analogous to the cyclophosphamide anticancer prodrug, as well as their covalently bonded structures to B-C59 (4 and 5) were optimized by DFT computations at the B3LYP level of theory using 6-31G(d) basis set. Comparing compounds 4 and 5 revealed that the chloro derivative ...

Journal: :Clinical child psychology and psychiatry 2014
Charlotta Gorski Helen Minnis

Video feedforward is a solution-focused intervention used to improve desired behaviour. We present two case studies of using video feedforward in reactive attachment disorder. Children with reactive attachment disorder, their caregivers and their clinician completed storyboards of behaviours desired during a 'miracle day' and filmed the individual scenes. These scenes were edited to a prolonged...

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