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2VO1

CRYSTAL STRUCTURE OF THE SYNTHETASE DOMAIN OF HUMAN CTP SYNTHETASE

Replaces:  2C5M
Summary for 2VO1
Entry DOI10.2210/pdb2vo1/pdb
Related2C5M
DescriptorCTP SYNTHASE 1, SULFATE ION (3 entities in total)
Functional Keywordspyrimidine biosynthesis, glutamine amidotransferase, phosphorylation, amidotransferase, cytidine 5-prime triphosphate synthetase, ctp, utp, ctps, ligase, glutamine, ctp synthase, phosphoprotein, ctp synthetase
Biological sourceHOMO SAPIENS (HUMAN)
Total number of polymer chains2
Total formula weight66521.60
Authors
Primary citationKursula, P.,Flodin, S.,Ehn, M.,Hammarstrom, M.,Schuler, H.,Nordlund, P.,Stenmark, P.
Structure of the Synthetase Domain of Human Ctp Synthetase, a Target for Anticancer Therapy.
Acta Crystallogr.,Sect.F, 62:613-, 2006
Cited by
PubMed Abstract: Cytidine triphosphate synthetase (CTPS) is a key enzyme in nucleic acid and phospholipid biosynthesis and its activity is increased in certain human cancers, making it a promising drug target. The crystal structure of the synthetase domain of human CTPS, which represents the first structure of a CTPS from an eukaryote, has been determined. The structure is homotetrameric and each active site is formed by three different subunits. Sulfate ions bound to the active sites indicate the positions of phosphate-binding sites for the substrates ATP and UTP and the feedback inhibitor CTP. Together with earlier structures of bacterial CTPS, the human CTPS structure provides an extended understanding of the structure-function relationship of CTPS-family members. The structure also serves as a basis for structure-based design of anti-proliferative inhibitors.
PubMed: 16820675
DOI: 10.1107/S1744309106018136
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.8 Å)
Structure validation

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數據於2025-10-29公開中

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