A C-terminal segment of the V1R vasopressin receptor is unstructured in the crystal structure of its chimera with the maltose-binding protein.
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Adikesavan NV, Mahmood SS, Stanley N, Xu Z, Wu N, Thibonnier M, Shoham M
A C-terminal segment of the V1R vasopressin receptor is unstructured in the crystal structure of its chimera with the maltose-binding protein.
Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Apr 1;61(Pt 4):341-5. Epub 2005 Mar 24.
- PubMed ID
- 16511036 [ View in PubMed]
- Abstract
The V1 vascular vasopressin receptor (V1R) is a G-protein-coupled receptor (GPCR) involved in the regulation of body-fluid osmolality, blood volume and blood pressure. Signal transduction is mediated by the third intracellular loop of this seven-transmembrane protein as well as by the C-terminal cytoplasmic segment. A chimera of the maltose-binding protein (MBP) and the C-terminal segment of V1R has been cloned, expressed, purified and crystallized. The crystals belong to space group P2(1), with unit-cell parameters a = 51.10, b = 66.56, c = 115.72 A, beta = 95.99 degrees. The 1.8 A crystal structure reveals the conformation of MBP and part of the linker region of this chimera, with the C-terminal segment being unstructured. This may reflect a conformational plasticity in the C-terminal segment that may be necessary for proper function of V1R.
DrugBank Data that Cites this Article
- Drug Targets
Drug Target Kind Organism Pharmacological Action Actions Lypressin Vasopressin V1a receptor Protein Humans YesNot Available Details Terlipressin Vasopressin V1a receptor Protein Humans YesAgonistDetails Vasopressin Vasopressin V1a receptor Protein Humans YesAgonistRegulatorDetails - Polypeptides
Name UniProt ID Vasopressin V1a receptor P37288 Details