J 2023

Structural basis for different membrane-binding properties of<i> E.</i><i> coli</i> anaerobic and human mitochondrial 8-oxidation trifunctional enzymes

SAH-TELI, Shiv K, Matyáš PINKAS, Mikko J HYNONEN, Sarah J BUTCHER, Rik K WIERENGA et. al.

Basic information

Original name

Structural basis for different membrane-binding properties of<i> E.</i><i> coli</i> anaerobic and human mitochondrial 8-oxidation trifunctional enzymes

Authors

SAH-TELI, Shiv K, Matyáš PINKAS (203 Czech Republic, belonging to the institution), Mikko J HYNONEN, Sarah J BUTCHER, Rik K WIERENGA, Jiří NOVÁČEK (203 Czech Republic, belonging to the institution) and Rajaram VENKATESAN (guarantor)

Edition

Structure, CAMBRIDGE, CELL PRESS, 2023, 0969-2126

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.700 in 2022

RIV identification code

RIV/00216224:14740/23:00133567

Organization unit

Central European Institute of Technology

UT WoS

001041738700001

Keywords in English

ACID BETA-OXIDATION; MULTIENZYME COMPLEX; CRYSTAL-STRUCTURE; ESCHERICHIA-COLI; MULTIFUNCTIONAL ENZYME; FATTY-ACIDS; INTERMEDIATE; RESOLUTION; BIOSYNTHESIS; REVERSAL

Tags

Tags

International impact, Reviewed
Změněno: 27/10/2024 14:46, Ing. Martina Blahová

Abstract

V originále

Facultative anaerobic bacteria such as Escherichia coli have two a282 heterotetrameric trifunctional en-zymes (TFE), catalyzing the last three steps of the 8-oxidation cycle: soluble aerobic TFE (EcTFE) and membrane-associated anaerobic TFE (anEcTFE), closely related to the human mitochondrial TFE (HsTFE). The cryo-EM structure of anEcTFE and crystal structures of anEcTFE-a show that the overall assembly of anEcTFE and HsTFE is similar. However, their membrane-binding properties differ consider-ably. The shorter A5-H7 and H8 regions of anEcTFE-a result in weaker a-8 as well as a-membrane interactions, respectively. The protruding H-H region of anEcTFE-8 is therefore more critical for membrane-association. Mutational studies also show that this region is important for the stability of the anEcTFE-8 dimer and anEcTFE heterotetramer. The fatty acyl tail binding tunnel of the anEcTFE-a hydra-tase domain, as in HsTFE-a, is wider than in EcTFE-a, accommodating longer fatty acyl tails, in good agreement with their respective substrate specificities.

Links

EF18_046/0015974, research and development project
Name: Modernizace České infrastruktury pro integrativní strukturní biologii
653706, interní kód MU
Name: iNEXT - Infrastructure for NMR, EM and X-ray crystallography for translational research (Acronym: iNEXT)
Investor: European Union, iNEXT - Infrastructure for NMR, EM and X-ray crystallography for translational research, RI Research Infrastructures (Excellent Science)
871037, interní kód MU
Name: iNEXT-Discovery: Infrastructure for transnational access and discovery in integrated structural biology (Acronym: iNEXT- Discovery)
Investor: European Union, RI Research Infrastructures (Excellent Science)
90242, large research infrastructures
Name: CIISB III