Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Usama M. Hegazy"'
Autor:
Amal Z. Barakat, Azza M. Abdel-Aty, Marwa K. Ibrahim, Hala A. Salah, Usama M. Hegazy, Rasha A. M. Azouz, Roqaya I. Bassuiny, Raafat M. Shaapan, Saleh A. Mohamed
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract Sarcocystis spp. infects water buffaloes (Bubalus bubalis) causing sarcocystosis. In the present study, Sarcocystis fusiformis was recognized in Egyptian water buffaloes based on histological observation and molecular analysis of internal tr
Externí odkaz:
https://doaj.org/article/c0863ace5fbd49b08245b96a98bff622
Autor:
Roqaya I Bassuiny, Afaf S. Fahmy, Usama M. Hegazy, Mahmoud M. Said, Ahmed M. Salem, Rasha A M Azouz
Publikováno v:
The Journal of Biochemistry. 167:203-215
Directed evolution using error-prone polymerase chain reaction was employed in the current study to enhance the catalytic efficiency of a thermostable Geobacillus stearothermophilus xylanase XT6 parent. High-throughput screening identified two varian
Autor:
Mohamed I. El-Khonezy, Rasha A M Azouz, Somaia S Abdel-Ghany, Amal Z Barakat, Roqaya I Bassuny, Walaa H. Salama, Abeer Shokeer, Afaf S. Fahmy, Usama M. Hegazy
Publikováno v:
The Journal of Biochemistry. 165:177-184
Xylan saccharification is a key step in many important biotechnological applications. Xylose is the main product of xylan degradation and is a major xylanase inhibitor in a bioreactor; however, xylose-binding site of xylanase is not discovered yet. E
Autor:
Alshaimaa M. Elsayed, Somia S. Abdel-Ghany, Usama M. Hegazy, Afaf S. Fahmy, Marwa G.A. Hegazy, Ahmed M. H. Salem, Walaa H. Salama
Publikováno v:
Biocatalysis and Agricultural Biotechnology. 16:1-9
Three peroxidase isoenzymes were isolated from Ficus carica latex using CM-Sepharose, DEAE-Sepharose and Sephacryl S-200. The complete purification was carried out for FP1 only due to the low level of activity and protein concentration of FP2 and FP3
Publikováno v:
Processes, Vol 8, Iss 1232, p 1232 (2020)
Glutathione transferases (GSTs) are enzymes that play a critical role in cellular detoxication by catalyzing the nucleophilic attack of glutathione on the electrophilic center of a number of xenobiotic compounds, including many therapeutic drugs. Mut
Autor:
Walaa H. Salama, Marwa G.A. Hegazy, Somia S. Abdel-Ghany, Afaf S. Fahmy, Ahmed M. H. Salem, Alshaimaa M. Elsayed, Usama M. Hegazy
Publikováno v:
Biotechnology Journal International. 21:1-14
Publikováno v:
Processes. 8:1232
Glutathione transferases (GSTs) are enzymes that play a critical role in cellular detoxication by catalyzing the nucleophilic attack of glutathione on the electrophilic center of a number of xenobiotic compounds, including many therapeutic drugs. Mut
Publikováno v:
South African Journal of Botany. 104:118-124
The alcoholic extract of Adhatoda vasica showed strong and reversible inhibition of the enzyme acetyl cholinesterase (AChE) with an IC50 = 294 μg/mL. Phytochemical study of the total alcoholic extract of A. vasica yielded four known compounds vasici
Mapping of Amino Acid Substitutions Conferring Herbicide Resistance in Wheat Glutathione Transferase
Autor:
Jeremy Minshull, Claes Gustafsson, Joshua A. Silverman, Kathy Wright, Mark D. Welch, Thomas Joseph Purcell, Bengt Mannervik, Usama M. Hegazy, Drew D. Regitsky, Sridhar Govindarajan
Publikováno v:
ACS Synthetic Biology. 4:221-227
We have used design of experiments (DOE) and systematic variance to efficiently explore glutathione transferase substrate specificities caused by amino acid substitutions. Amino acid substitutions selected using phylogenetic analysis were synthetical
Autor:
Usama M. Hegazy, Bengt Mannervik
Publikováno v:
Amino Acids, Peptides and Proteins in Organic Chemistry. :379-431