Allosteric regulation accompanied by oligomeric state changes of Trypanosoma brucei GMP reductase through cystathionine-β-synthase domain

Autor: Akira Imamura, Tetsuya Okada, Hikaru Mase, Takuya Otani, Tomoka Kobayashi, Manatsu Tamura, Bruno Kilunga Kubata, Katsuaki Inoue, Robert P. Rambo, Susumu Uchiyama, Kentaro Ishii, Shigenori Nishimura, Takashi Inui
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Druh dokumentu: article
ISSN: 2041-1723
DOI: 10.1038/s41467-020-15611-3
Popis: Trypanosoma brucei guanosine 5′-monophosphate reductase (TbGMPR) catalyses the conversion of GMP to inosine 5′-monophosphate and contains a cystathionine-β-synthase (CBS) domain. Here the authors combine X-ray crystallography and kinetic measurements and present the GMP-, GTP-bound and nucleotide-free TbGMPR structures and show that guanine and adenine nucleotides are allosteric regulators of TbGMPR that bind to the CBS domain.
Databáze: Directory of Open Access Journals