Structural insights into bifunctional thaumarchaeal crotonyl-CoA hydratase and 3-hydroxypropionyl-CoA dehydratase from Nitrosopumilus maritimus

Autor: Ebru Destan, Yasuo Yoshikuni, Samuel Deutsch, Esra Ayan, Bradley B. Tolar, Christopher A. Francis, Hasan DeMirci, Busra Yuksel, Soichi Wakatsuki
Přispěvatelé: Destan, Ebru, Yüksel, Büşra, Ayan, Esra, Demirci, Hasan (ORCID 0000-0002-9135-5397 & YÖK ID 307350), Tolar, Bradley B., Deutsch, Sam, Yoshikuni, Yasuo, Wakatsuki, Soichi, Francis, Christopher A., College of Sciences, Graduate School of Sciences and Engineering, Department of Molecular Biology and Genetics
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scientific Reports
Scientific reports, vol 11, iss 1
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
ISSN: 2045-2322
Popis: The ammonia-oxidizing thaumarchaeal 3-hydroxypropionate/4-hydroxybutyrate (3HP/4HB) cycle is one of the most energy-efficient CO2 fixation cycles discovered thus far. The protein encoded by Nmar_1308 (from Nitrosopumilus maritimus SCM1) is a promiscuous enzyme that catalyzes two essential reactions within the thaumarchaeal 3HP/4HB cycle, functioning as both a crotonyl-CoA hydratase (CCAH) and 3-hydroxypropionyl-CoA dehydratase (3HPD). In performing both hydratase and dehydratase activities, Nmar_1308 reduces the total number of enzymes necessary for CO2 fixation in Thaumarchaeota, reducing the overall cost for biosynthesis. Here, we present the first high-resolution crystal structure of this bifunctional enzyme with key catalytic residues in the thaumarchaeal 3HP/4HB pathway.
National Science Foundation (NSF) Science and Technology Centers; Science and Technology Centers; Scientifc and Technological Research Council of Turkey (TÜBİTAK); US Department of Energy Joint Genome Institute
Databáze: OpenAIRE