Works matching AU Gerothanassis, Ioannis P.

Results: 61

Zinc binding in peptide models of angiotensin-I converting enzyme active sites studied through 1H-NMR and chemical shift perturbation mapping.

Published in:

Biopolymers, 2003, v. 69, n. 2, p. 244, doi. 10.1002/bip.10362

By:

Athanassios S. Galanis;
Georgios A. Spyroulias;
Roberta Pierattelli;
Andreas Tzakos;
Anastassios Troganis;
Ioannis P. Gerothanassis;
George Pairas;
Evy Manessi-Zoupa;
Paul Cordopatis

Publication type:

Article

Editorial: Re-emergence of natural products for drug discovery in honor of Prof. Dr. M. Iqbal Choudhary.

Published in:

Frontiers in Pharmacology, 2023, p. 1, doi. 10.3389/fphar.2023.1227732

By:

Hussain, Hidayat;
Siddiqui, Hina;
Gerothanassis, Ioannis P.

Publication type:

Article

Ligand-observed in-tube NMR in natural products research: A review on enzymatic biotransformations, protein–ligand interactions, and in-cell NMR spectroscopy.

Published in:

Arabian Journal of Chemistry, 2023, v. 16, n. 3, p. N.PAG, doi. 10.1016/j.arabjc.2022.104536

By:

Gerothanassis, Ioannis P.

Publication type:

Article

Phytochemicals in olive-leaf extracts and their antiproliferative activity against cancer and endothelial cells.

Published in:

Molecular Nutrition & Food Research, 2009, v. 53, n. 5, p. 600, doi. 10.1002/mnfr.200800204

By:

Goulas, Vlassios;
Exarchou, Vassiliki;
Troganis, Anastassios N.;
Psomiadou, Eleni;
Fotsis, Theodoros;
Briasoulis, Evangelos;
Gerothanassis, Ioannis P.

Publication type:

Article

17O NMR studies of electronic and steric interactions of substituted quinoxaline-2(1 H),3(4 H)-diones.

Published in:

Journal of Heterocyclic Chemistry, 1996, v. 33, n. 3, p. 643, doi. 10.1002/jhet.5570330320

By:

Gerothanassis, Ioannis P.;
Varvounis, George

Publication type:

Article

Structural Studies of Monounsaturated and ω-3 Polyunsaturated Free Fatty Acids in Solution with the Combined Use οf NMR and DFT Calculations—Comparison with the Liquid State.

Published in:

Molecules, 2023, v. 28, n. 16, p. 6144, doi. 10.3390/molecules28166144

By:

Venianakis, Themistoklis;
Siskos, Michael G.;
Papamokos, George;
Gerothanassis, Ioannis P.

Publication type:

Article

Molecular Basis for the Selectivity of DHA and EPA in Sudlow's Drug Binding Sites in Human Serum Albumin with the Combined Use of NMR and Docking Calculations.

Published in:

Molecules, 2023, v. 28, n. 9, p. 3724, doi. 10.3390/molecules28093724

By:

Alexandri, Eleni;
Venianakis, Themistoklis;
Primikyri, Alexandra;
Papamokos, Georgios;
Gerothanassis, Ioannis P.

Publication type:

Article

Structural Basis of Artemisinin Binding Sites in Serum Albumin with the Combined Use of NMR and Docking Calculations.

Published in:

Molecules, 2022, v. 27, n. 18, p. 5912, doi. 10.3390/molecules27185912

By:

Primikyri, Alexandra;
Papamokos, Georgios;
Venianakis, Themistoklis;
Sakka, Marianna;
Kontogianni, Vassiliki G.;
Gerothanassis, Ioannis P.

Publication type:

Article

Analytical and Structural Tools of Lipid Hydroperoxides: Present State and Future Perspectives.

Published in:

Molecules, 2022, v. 27, n. 7, p. 2139, doi. 10.3390/molecules27072139

By:

Kontogianni, Vassiliki G.;
Gerothanassis, Ioannis P.

Publication type:

Article

DFT Calculations of 1 H NMR Chemical Shifts of Geometric Isomers of Conjugated Linolenic Acids, Hexadecatrienyl Pheromones, and Model Triene-Containing Compounds: Structures in Solution and Revision of NMR Assignments.

Published in:

Molecules, 2021, v. 26, n. 11, p. 3477, doi. 10.3390/molecules26113477

By:

Venianakis, Themistoklis;
Oikonomaki, Christina;
Siskos, Michael G.;
Primikyri, Alexandra;
Gerothanassis, Ioannis P.

Publication type:

Article

NMR and Computational Studies as Analytical and High-Resolution Structural Tool for Complex Hydroperoxides and Diastereomeric Endo -Hydroperoxides of Fatty Acids in Solution-Exemplified by Methyl Linolenate.

Published in:

Molecules, 2020, v. 25, n. 21, p. 4902, doi. 10.3390/molecules25214902

By:

Ahmed, Raheel;
Varras, Panayiotis C.;
Siskos, Michael G.;
Siddiqui, Hina;
Choudhary, M. Iqbal;
Gerothanassis, Ioannis P.;
Figadere, Bruno

Publication type:

Article

Cichorins D–F: Three New Compounds from Cichorium intybus and Their Biological Effects.

Published in:

Molecules, 2020, v. 25, n. 18, p. 4160, doi. 10.3390/molecules25184160

By:

Khan, Muhammad Farooq;
Nasr, Fahd A.;
Noman, Omar M.;
Alyhya, Nouf Abdulaziz;
Ali, Iftikhar;
Saoud, Mohamad;
Rennert, Robert;
Dube, Mthandazo;
Hussain, Wahid;
Green, Ivan R.;
Basudan, Omer Ahmed M.;
Ullah, Riaz;
Anazi, Shamsa Hilal;
Hussain, Hidayat;
Keyzers, Rob;
Gerothanassis, Ioannis P.;
Choudhary, Muhammad Iqbal;
Siddiqui, Hina

Publication type:

Article

DFT Calculations of 1H- and 13C-NMR Chemical Shifts of Geometric Isomers of Conjugated Linoleic Acid (18:2 ω-7) and Model Compounds in Solution.

Published in:

Molecules, 2020, v. 25, n. 16, p. 3660, doi. 10.3390/molecules25163660

By:

Venianakis, Themistoklis;
Oikonomaki, Christina;
Siskos, Michael G.;
Varras, Panayiotis C.;
Primikyri, Alexandra;
Alexandri, Eleni;
Gerothanassis, Ioannis P.;
Gikas, Evagelos;
Kurtán, Tibor

Publication type:

Article

NMR Relaxation Measurements on Complex Samples Based on Real-Time Pure Shift Techniques.

Published in:

Molecules, 2020, v. 25, n. 3, p. 473, doi. 10.3390/molecules25030473

By:

Lin, Xiaoqing;
Zhan, Haolin;
Li, Hong;
Huang, Yuqing;
Chen, Zhong;
Gerothanassis, Ioannis P.

Publication type:

Article

Amino Acid Profile of Fruits as Potential Fingerprints of Varietal Origin.

Published in:

Molecules, 2019, v. 24, n. 24, p. 4500, doi. 10.3390/molecules24244500

By:

Botoran, Oana Romina;
Ionete, Roxana Elena;
Miricioiu, Marius Gheorghe;
Costinel, Diana;
Radu, Gabriel Lucian;
Popescu, Raluca;
Câmara, José Sousa;
Perestrelo, Rosa;
Pereira, Jorge;
Gerothanassis, Ioannis P.;
Gentili, Alessandra

Publication type:

Article

Identification and Quantitation of Ursolic and Oleanolic Acids in Ilex aquifolium L. Leaf Extracts Using 13C and 1H-NMR Spectroscopy.

Published in:

Molecules, 2019, v. 24, n. 23, p. 4413, doi. 10.3390/molecules24234413

By:

Palu, Doreen;
Bighelli, Ange;
Casanova, Joseph;
Paoli, Mathieu;
Gerothanassis, Ioannis P.

Publication type:

Article

Valorization of Carob Fruit Residues for the Preparation of Novel Bi-Functional Polyphenolic Coating for Food Packaging Applications.

Published in:

Molecules, 2019, v. 24, n. 17, p. 3162, doi. 10.3390/molecules24173162

By:

Goulas, Vlasios;
Hadjivasileiou, Loukas;
Primikyri, Alexandra;
Michael, Christodoulos;
Botsaris, George;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.;
McPhee, Derek J.

Publication type:

Article

Solvent-Dependent Structures of Natural Products Based on the Combined Use of DFT Calculations and 1H-NMR Chemical Shifts.

Published in:

Molecules, 2019, v. 24, n. 12, p. 2290, doi. 10.3390/molecules24122290

By:

Mari, Saima H.;
Varras, Panayiotis C.;
Atia-tul-Wahab;
Choudhary, Iqbal M.;
Siskos, Michael G.;
Gerothanassis, Ioannis P.;
Herrera, Raquel P.

Publication type:

Article

Use of 13C-qNMR Spectroscopy for the Analysis of Non-Psychoactive Cannabinoids in Fibre-Type Cannabis sativa L. (Hemp).

Published in:

Molecules, 2019, v. 24, n. 6, p. 1138, doi. 10.3390/molecules24061138

By:

Marchetti, Lucia;
Brighenti, Virginia;
Rossi, Maria Cecilia;
Sperlea, Johanna;
Pellati, Federica;
Bertelli, Davide;
Gerothanassis, Ioannis P.

Publication type:

Article

NMR-Based Μetabolomics of the Lipid Fraction of Organic and Conventional Bovine Milk.

Published in:

Molecules, 2019, v. 24, n. 6, p. 1067, doi. 10.3390/molecules24061067

By:

Tsiafoulis, Constantinos G.;
Papaemmanouil, Christina;
Alivertis, Dimitrios;
Tzamaloukas, Ouranios;
Miltiadou, Despoina;
Balayssac, Stéphane;
Malet-Martino, Myriam;
Gerothanassis, Ioannis P.

Publication type:

Article

Response of Bioactive Metabolite and Biosynthesis Related Genes to Methyl Jasmonate Elicitation in Codonopsis pilosula.

Published in:

Molecules, 2019, v. 24, n. 3, p. 533, doi. 10.3390/molecules24030533

By:

Ji, Jiao-jiao;
Feng, Qi;
Sun, Hai-feng;
Zhang, Xue-jun;
Li, Xiao-xiao;
Li, Jian-kuan;
Gao, Jian-ping;
Gerothanassis, Ioannis P.

Publication type:

Article

High Resolution NMR Spectroscopy as a Structural and Analytical Tool for Unsaturated Lipids in Solution.

Published in:

Molecules, 2017, v. 22, n. 10, p. 1663, doi. 10.3390/molecules22101663

By:

Alexandri, Eleni;
Ahmed, Raheel;
Siddiqui, Hina;
Choudhary, Muhammad I.;
Tsiafoulis, Constantinos G.;
Gerothanassis, Ioannis P.

Publication type:

Article

Hydrogen Atomic Positions of O-H…O Hydrogen Bonds in Solution and in the Solid State: The Synergy of Quantum Chemical Calculations with 1H-NMR Chemical Shifts and X-ray Diffraction Methods.

Published in:

Molecules, 2017, v. 22, n. 3, p. 415, doi. 10.3390/molecules22030415

By:

Siskos, Michael G.;
Choudhary, M. Iqbal;
Gerothanassis, Ioannis P.

Publication type:

Article

1H-NMR as a Structural and Analytical Tool of Intra- and Intermolecular Hydrogen Bonds of Phenol-Containing Natural Products and Model Compounds.

Published in:

Molecules, 2014, v. 19, n. 9, p. 13643, doi. 10.3390/molecules190913643

By:

Charisiadis, Pantelis;
Kontogianni, Vassiliki G.;
Tsiafoulis, Constantinos G.;
Tzakos, Andreas G.;
Siskos, Michael;
Gerothanassis, Ioannis P.

Publication type:

Article

NMR and computational studies reveal novel aspects in molecular recognition of unsaturated fatty acids with non‐labelled serum albumin.

Published in:

FEBS Journal, 2022, v. 289, n. 18, p. 5617, doi. 10.1111/febs.16453

By:

Alexandri, Eleni;
Primikyri, Alexandra;
Papamokos, Georgios;
Venianakis, Themistoklis;
Gkalpinos, Vasileios K.;
Tzakos, Andreas G.;
Karydis‐Messinis, Andreas;
Moschovas, Dimitrios;
Avgeropoulos, Apostolos;
Gerothanassis, Ioannis P.

Publication type:

Article

Domain-Selective Ligand-Binding Modes and Atomic Level Pharmacophore Refinement in Angiotensin I Converting Enzyme (ACE) Inhibitors.

Published in:

ChemBioChem, 2005, v. 6, n. 6, p. 1089, doi. 10.1002/cbic.200400386

By:

Tzakos, Andreas G.;
Gerothanassis, Ioannis P.

Publication type:

Article

Determination of Polyphenolic Phytochemicals using Highly Deshielded -OH 1H-NMR Signals.

Published in:

Phytochemical Analysis, 2017, v. 28, n. 3, p. 159, doi. 10.1002/pca.2656

By:

Charisiadis, Pantelis;
Kontogianni, Vassiliki G.;
Tsiafoulis, Constantinos G.;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.

Publication type:

Article

A new method for the determination of free l-carnitine in serum samples based on high field single quantum coherence filtering H-NMR spectroscopy.

Published in:

Analytical & Bioanalytical Chemistry, 2011, v. 399, n. 6, p. 2285, doi. 10.1007/s00216-010-4600-0

By:

Tsiafoulis, Constantinos G.;
Exarchou, Vassiliki;
Tziova, Polyxeni P.;
Bairaktari, Eleni;
Gerothanassis, Ioannis P.;
Troganis, Anastassios N.

Publication type:

Article

Ultrasound-Assisted Extraction of Taro Leaf Antioxidants Using Natural Deep Eutectic Solvents: An Eco-Friendly Strategy for the Valorization of Crop Residues.

Published in:

Antioxidants, 2023, v. 12, n. 10, p. 1801, doi. 10.3390/antiox12101801

By:

Christou, Atalanti;
Parisis, Nikolaos A.;
Venianakis, Themistoklis;
Barbouti, Alexandra;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.;
Goulas, Vlasios

Publication type:

Article

ANTIAGE-DB: A Database and Server for the Prediction of Anti-Aging Compounds Targeting Elastase, Hyaluronidase, and Tyrosinase.

Published in:

Antioxidants, 2022, v. 11, n. 11, p. 2268, doi. 10.3390/antiox11112268

By:

Papaemmanouil, Christina D.;
Peña-García, Jorge;
Jesús Banegas-Luna, Antonio;
Kostagianni, Androniki D.;
Gerothanassis, Ioannis P.;
Pérez-Sánchez, Horacio;
Tzakos, Andreas G.

Publication type:

Article

Prof. Dr. M. Iqbal Choudhary-A lifetime career dedicated to remarkable services in “natural products sciences”.

Published in:

Frontiers in Pharmacology, 2023, v. 14, p. 1, doi. 10.3389/fphar.2023.1119419

By:

Hussain, Hidayat;
Siddiqui, Hina;
Gerothanassis, Ioannis P.

Publication type:

Article

On the Hydration State of Amino Acids and Their Derivatives at Different Ionization States: A Comparative Multinuclear NMR and Crystallographic Investigation.

Published in:

Journal of Amino Acids, 2012, p. 1, doi. 10.1155/2012/565404

By:

Pappas, Charalampos G.;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.

Publication type:

Article

DFT Calculations of 1H and 13C NMR Chemical Shifts of Hydroxy Secondary Oxidation Products of Geometric Isomers of Conjugated Linoleic Acid Methyl Esters: Structures in Solution and Revision of NMR Assignments.

Published in:

Magnetic Resonance in Chemistry, 2025, v. 63, n. 3, p. 227, doi. 10.1002/mrc.5506

By:

Venianakis, Themistoklis;
Siskos, Michael G.;
Gerothanassis, Ioannis P.

Publication type:

Article

On the Use of Strong Proton Donors as a Tool for Overcoming Line Broadening in NMR: A Comment.

Published in:

Magnetic Resonance in Chemistry, 2025, v. 63, n. 3, p. 170, doi. 10.1002/mrc.5499

By:

Charisiadis, Pantelis;
Venianakis, Themistoklis;
Papaemmanouil, Christina D.;
Primikyri, Alexandra;
Tzakos, Andreas G.;
Siskos, Michael G.;
Gerothanassis, Ioannis P.

Publication type:

Article

Structure–function discrimination of the N‐ and C‐ catalytic domains of human angiotensin‐converting enzyme: implications for Cl– activation and peptide hydrolysis mechanisms.

Published in:

Protein Engineering, 2003, v. 16, n. 12, p. 993, doi. 10.1093/protein/gzg122

By:

Andreas G. Tzakos;
Athanassios S. Galanis;
Georgios A. Spyroulias;
Paul Cordopatis;
Evy Manessi‐Zoupa;
Ioannis P. Gerothanassis

Publication type:

Article

Characterization of Protocatechuate 4,5-Dioxygenase from Pseudarthrobacter phenanthrenivorans Sphe3 and In Situ Reaction Monitoring in the NMR Tube.

Published in:

International Journal of Molecular Sciences, 2021, v. 22, n. 17, p. 9647, doi. 10.3390/ijms22179647

By:

Tsagogiannis, Epameinondas;
Vandera, Elpiniki;
Primikyri, Alexandra;
Asimakoula, Stamatia;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.;
Koukkou, Anna-Irini

Publication type:

Article

The 17O-NMR shielding range and shielding time scale and detection of discrete hydrogen-bonded conformational states in peptides.

Published in:

Biopolymers, 2001, v. 59, n. 3, p. 125, doi. 10.1002/1097-0282(200109)59:3<125::AID-BIP1012>3.0.CO;2-A

By:

Gerothanassis, Ioannis P.

Publication type:

Article

Thermodynamic origin of cis/trans isomers of a proline-containing β-turn model dipeptide in aqueous solution: A combined variable temperature 1H-NMR, two-dimensional 1H,1H gradient enhanced nuclear overhauser effect spectroscopy (NOESY), one-dimensional steady-state intermolecular 13C,1H NOE, and molecular dynamics study

Published in:

Biopolymers, 2000, v. 53, n. 1, p. 72, doi. 10.1002/(SICI)1097-0282(200001)53:1<72::AID-BIP7>3.0.CO;2-5

By:

Troganis, Anastasios;
Gerothanassis, Ioannis P.;
Athanassiou, Zafiria;
Mavromoustakos, Thomas;
Hawkes, Geoffrey E.;
Sakarellos, Constantinos

Publication type:

Article

Hydration of cis and trans N-methylformamide as revealed by the use of.

Published in:

Biopolymers, 1995, v. 36, n. 4, p. 415, doi. 10.1002/bip.360360405

By:

Gerothanassis, Ioannis P.;
Demetropoulos, Ioannis N.;
Vakka, Constantina

Publication type:

Article

17O- and 14N-nmr studies of Leu-enkephalin and enkephalin-related fragments in aqueous solution.

Published in:

Biopolymers, 1990, v. 29, n. 2, p. 423, doi. 10.1002/bip.360290213

By:

Karayannis, Theodoros;
Gerothanassis, Ioannis P.;
Sakarellos-Daitsiotis, Maria;
Sakarellos, Constantinos;
Marraud, Michel

Publication type:

Article

17O-nmr studies of the conformational and dynamic properties of enkephalins in aqueous and organic solutions using selectively labeled analogues.

Published in:

Biopolymers, 1989, v. 28, n. 1, p. 15, doi. 10.1002/bip.360280105

By:

Sakarellos, Constantinos;
Gerothanassis, Ioannis P.;
Birlirakis, Nicolaos;
Karayannis, Theodoros;
Sakarellos-Daitsiotis, Maria;
Marraud, Michel

Publication type:

Article

PRESS: PRotEin S-Sulfenylation server.

Published in:

Bioinformatics, 2016, v. 32, n. 17, p. 2710, doi. 10.1093/bioinformatics/btw301

By:

Sakka, Marianna;
Tzortzis, Grigorios;
Mantzaris, Michalis D.;
Bekas, Nick;
Kellici, Tahsin F.;
Likas, Aristidis;
Galaris, Dimitrios;
Gerothanassis, Ioannis P.;
Tzakos, Andreas G.

Publication type:

Article

Functional stability of goats' milk yoghurt supplemented with Pistacia atlantica resin extracts and Saccharomyces boulardii.

Published in:

International Journal of Dairy Technology, 2020, v. 73, n. 1, p. 134, doi. 10.1111/1471-0307.12629

By:

Hadjimbei, Elena;
Botsaris, George;
Goulas, Vlasios;
Alexandri, Eleni;
Gekas, Vassilis;
Gerothanassis, Ioannis P

Publication type:

Article

Probing the interaction of a quercetin bioconjugate with Bcl‐2 in living human cancer cells with in‐cell NMR spectroscopy.

Published in:

FEBS Letters, 2018, v. 592, n. 20, p. 3367, doi. 10.1002/1873-3468.13250

By:

Primikyri, Alexandra;
Sayyad, Nisar;
Quilici, Giacomo;
Vrettos, Eirinaios I.;
Lim, Kyungeun;
Chi, Seung‐Wook;
Musco, Giovanna;
Gerothanassis, Ioannis P.;
Tzakos, Andreas G.

Publication type:

Article

The fleeting existence of the classical vinyl cation structure.

Published in:

Molecular Physics, 2020, v. 118, n. 17, p. 1, doi. 10.1080/00268976.2020.1752402

By:

Varras, Panayiotis C.;
Siskos, Michael G.;
Gritzapis, Panagiotis S.;
Gerothanassis, Ioannis P.

Publication type:

Article

High Nuclearity ZnII/MeCO2−/(C5NH4)2CO22− Clusters by 'Depolymerization': Conversion of a Three-Dimensional Coordination Polymer Containing Hexameric Units into Its Constituent Hexanuclear Complex

Published in:

Angewandte Chemie International Edition, 2001, v. 40, n. 17, p. 3211, doi. 10.1002/1521-3773(20010903)40:17<3211::AID-ANIE3211>3.0.CO;2-X

By:

Lalioti, Nikolia;
Raptopoulou, Catherine P.;
Terzis, Aris;
Aliev, Abil E.;
Gerothanassis, Ioannis P.;
Manessi-Zoupa, Evy;
Perlepes, Spyros P.

Publication type:

Article

Density functional theory calculations of δ(13C) and δ(1H) chemical shifts and 3J(13COO1H) coupling constants as structural and analytical tools in hydroperoxides: Prospects and limitations of 1H13C heteronuclear multiple bond correlation experiments

Published in:

Magnetic Resonance in Chemistry, 2022, v. 60, n. 10, p. 970, doi. 10.1002/mrc.5298

By:

Ahmed, Raheel;
Siskos, Michael G.;
Siddiqui, Hina;
Gerothanassis, Ioannis P.

Publication type:

Article

Simultaneous determination of artemisinin and its analogs and flavonoids in Artemisia annua crude extracts with the use of NMR spectroscopy.

Published in:

Magnetic Resonance in Chemistry, 2020, v. 58, n. 3, p. 232, doi. 10.1002/mrc.4971

By:

Kontogianni, Vassiliki G.;
Primikyri, Alexandra;
Sakka, Marianna;
Gerothanassis, Ioannis P.

Publication type:

Article

1H–13C HMBC NMR experiments as a structural and analytical tool for the characterization of elusive trans/cis hydroperoxide isomers from oxidized unsaturated fatty acids in solution.

Published in:

Magnetic Resonance in Chemistry, 2019, v. 57, n. 4, p. 69, doi. 10.1002/mrc.4844

By:

Ahmed, Raheel;
Siddiqui, Hina;
Choudhary, Muhammad Iqbal;
Gerothanassis, Ioannis P.

Publication type:

Article

Dynamic changes in composition of extracts of natural products as monitored by in situ NMR.

Published in:

Magnetic Resonance in Chemistry, 2014, v. 52, n. 12, p. 764, doi. 10.1002/mrc.4128

By:

Charisiadis, Pantelis;
Tsiafoulis, Constantinos G.;
Tzakos, Andreas G.;
Gerothanassis, Ioannis P.

Publication type:

Article