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POM analysis and computational interactions of 8-hydroxydiospyrin inside active site of protein tyrosine phosphatase 1B

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BIOCELL 2021年第3期45卷 751-759页

作者： SAUD BAWAZER ASGHAR KHAN ABDUR RAUF TAIBI B EN HADDA YAHYA SAL-AWTHAN OMAR BAHATTAB UMER RASHID INAMULLAH KHAN MUHAMMAD A SIF NAWAZ MD SAHAB UDDIN OLATUNDE AHMED MOHAMMAD A LI SHARIATI Department of Pharmaceutical Chemistry Faculty of PharmacyUmm Al-Qura UniversityMakkah21955Saudi Arabia Department of Medicine Khyber Teaching Hospital Peshawar25000Pakistan Department of Chemistry University of SwabiSwabi23430Pakistan LCM Laboratory Mohammed First UniversityFaculty of SciencesOujda60000Morocco Biology Department Faculty of SciencesUniversity of TabukTabuk1144Saudi Arabia Department of Biology Faculty of ScienceIbb UniversityIbbYemen Department of Chemistry COMSATS University IslamabadAbbottabad CampusAbbottabad22060Pakistan Department of Pharmacy University of PeshawarPeshawar25120Pakistan Department of Biotechnology Shaheed Benazir Bhutto UniversitySheringal14400Pakistan Department of Pharmacy Southeast UniversityDhaka1213Bangladesh Pharmakon Neuroscience Research Network Dhaka1207Bangladesh Department of Biochemistry Abubakar Tafawa Balewa UniversityBauchi740272Nigeria Moscow State University of Technologies and Management(The First Cossack University) Moscow119991Russian Federation

Proteintyrosine phosphatase 1B(PTP1B)inhibitionis consideredas a potentialtherapeuticfor the treatmentof cancer,type2 diabetes,*** presentwork,weinvestigatedtheanti-diabeticpotentialof8-hydroxydiospyrin(8-HDN)from *** against the PTP1B *** showed significant inhibitory activity of PTP1B with an IC 50 value of 18.37±0.02μM.A detailed molecular docking study was carried out to analyze the binding orientation,binding energy,and mechanism of inhibition.A comparative investigation of 8-HDN in the catalytic,as well as the allosteric site of PTP1B,was *** energy data showed that compound 8-HDN is more selective for the allosteric site and hence avoids the problems associated with catalytic site *** inhibition mechanism of 8-HDN can be further investigated as an active lead compound against PTP1B by using in vitro and in vivo models.

关键词： diospyros lotus Roots 8-Hydroxydiospyrin Molecular docking Protein tyrosine phosphatase 1B

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Chlorophyll Fluorescence Response of Persimmon Plants under Salt Stress

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Medicinal Plant 2023年第5期14卷 42-44页

作者： Xining GENG Lihua XIE Jingwen XU Ruiyuan WANG Pingdingshan University Henan Province Key Laboratory of Germplasm Innovation and Utilization of Eco-economic Wood PlantPingdingshang 467000China

[Objectives]To study the photosynthetic response mechanism of persimmon seedlings to salt stress.[Methods]The chlorophyll fluorescence parameters of diospyros virginiana and diospyros lotus seedlings under 4%salt stress were studied by pot culture salt control method,including the minimal fluorescence(F_(0)),maximum fluorescence(F_(m)),potential activity of PS II(F_(v)/F_(0)),maximum photochemical efficiency of PS II(F_(v)/F_(m)),electron transport rate(ETR),actual photochemical efficiency of PS II(Y II),and photochemical quenching coefficient(q_(p)).[Results]Under 4%salt stress,the maximum fluorescence(F_(m)),maximum photochemical efficiency of PS II(F v/F m),and photochemical quenching coefficient(q_(p))of two persimmon plants decreased with *** potential activity of PS II(F_(v)/F_(0)),actual photochemical efficiency of PS II(Y_(II)),and electron transport rate(ETR)decreased under salt stress.[Conclusions]This study indicates that the PS II reaction center in the persimmon leaves was damaged and the electron transport at the acceptor side was damaged under salt *** is expected to lay a foundation for the analysis of salt-tolerance mechanism of persimmon plants.

关键词： Chlorophyll fluorescence Salt stress diospyros virginiana diospyros lotus

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