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Structure paper

TitleCatalytic mechanism and differential alarmone regulation of a conserved stringent nucleosidase.
Journal, issue, pagesStructure, Vol. 34, Page 198-209.e4, Year 2026
Publish dateDec 18, 2024 (structure data deposition date)
AuthorsBaerentsen, R.L. / Kronborg, K. / Brodersen, D.E. / Zhang, Y.E.
External linksStructure / PubMed:41197623
MethodsX-ray diffraction
Resolution2.36 - 3.4 Å
Structure data

PDB-9hs1:
Crystal structure of the Escherichia coli nucleosidase PpnN (partial alarmone form)
Method: X-RAY DIFFRACTION / Resolution: 2.36 Å

PDB-9hs2:
Crystal structure of the Escherichia coli nucleosidase PpnN (ppGpp form)
Method: X-RAY DIFFRACTION / Resolution: 3.4 Å

PDB-9hs3:
Crystal structure of the Escherichia coli nucleosidase PpnN (E264A, pppGpp form)
Method: X-RAY DIFFRACTION / Resolution: 3.4 Å

Chemicals

ChemComp-0O2:
guanosine 5'-(tetrahydrogen triphosphate) 3'-(trihydrogen diphosphate)

ChemComp-GUN:
GUANINE

ChemComp-HSX:
5-O-phosphono-alpha-D-ribofuranose

ChemComp-HOH:
WATER

ChemComp-G4P:
GUANOSINE-5',3'-TETRAPHOSPHATE

PDB-1ixi:
PHOSPHATE-BINDING PROTEIN MUTANT WITH ASP 56 REPLACED BY ASN COMPLEX WITH MONOBASIC PHOSPHATE ION

Source
  • escherichia coli k-12 (bacteria)
  • escherichia coli (E. coli)
KeywordsHYDROLASE / nucleosidase / pppgpp / gmp / ppGpp

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