Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Distinct or Overlapping Areas of Mitochondrial Thioredoxin 2 May Be Used for Its Covalent and Strong Non-Covalent Interactions with Protein Ligands
Δημιουργός/Συγγραφέας:	Ntallis, Charalampos Tzoupis, Haralampos Tselios, Theodore [EL] Χασάπης, Χρήστος[EN] Chasapis, Christos Vlamis-Gardikas, Alexios
Ημερομηνία:	2023-12-20
Γλώσσα:	Αγγλικά
ISSN:	2076-3921
DOI:	10.3390/antiox13010015
Άλλο:	38275635
Περίληψη:	In silico approaches were employed to examine the characteristics of interactions between human mitochondrial thioredoxin 2 (HsTrx2) and its 38 previously identified mitochondrial protein ligands. All interactions appeared driven mainly by electrostatic forces. The statistically significant residues of HsTrx2 for interactions were characterized as "contact hot spots". Since these were identical/adjacent to putative thermodynamic hot spots, an energy network approach identified their neighbors to highlight possible contact interfaces. Three distinct areas for binding emerged: (i) one around the active site for covalent interactions, (ii) another antipodal to the active site for strong non-covalent interactions, and (iii) a third area involved in both kinds of interactions. The contact interfaces of HsTrx2 were projected as respective interfaces for Escherichia coli Trx1 (EcoTrx1), 2, and HsTrx1. Comparison of the interfaces and contact hot spots of HsTrx2 to the contact residues of EcoTx1 and HsTrx1 from existing crystal complexes with protein ligands supported the hypothesis, except for a part of the cleft/groove adjacent to Trp30 preceding the active site. The outcomes of this study raise the possibility for the rational design of selective inhibitors for the interactions of HsTrx2 with specific protein ligands without affecting the entirety of the functions of the Trx system.
Τίτλος πηγής δημοσίευσης:	Antioxidants (Basel, Switzerland)
Τόμος/Κεφάλαιο:	13
Τεύχος:	1
Θεματική Κατηγορία:	[EL] Δομική Βιολογία[EN] Structural Biology [EL] Βιοπληροφορική[EN] Bioinformatics
Λέξεις-Κλειδιά:	contact area hot spots interface mitochondria molecular recognition thioredoxin
Χρηματοδότης:	Hellenic Foundation for Research and Innovation (HFRI)
EU Grant:	2nd Call for H.F.R.I. Research Projects to Support Faculty Members & Researchers
EU Grant identifier:	3352
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.3390/antiox13010015
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο