4uc1 | pdb_00004uc1

High resolution crystal structure of translocator protein 18kDa (TSPO) from Rhodobacter sphaeroides (A139T Mutant) in C2 space group

spinqualitylabelsall models 4uc1, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4uc1 is a 3 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: MOE, OLC, P4C, PP9, Z0P Related: 4uc2, 4uc3 Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed The 18-kilodalton translocator protein (TSPO), proposed to be a key player in cholesterol transport into mitochondria, is highly expressed in steroidogenic tissues, metastatic cancer, and inflammatory and neurological diseases such as Alzheimer's and Parkinson's. TSPO ligands, including benzodiazepine drugs, are implicated in regulating apoptosis and are extensively used in diagnostic imaging. We report crystal structures (at 1.8, 2.4, and 2.5 angstrom resolution) of TSPO from Rhodobacter sphaeroides and a mutant that mimics the human Ala(147)-->Thr(147) polymorphism associated with psychiatric disorders and reduced pregnenolone production. Crystals obtained in the lipidic cubic phase reveal the binding site of an endogenous porphyrin ligand and conformational effects of the mutation. The three crystal structures show the same tightly interacting dimer and provide insights into the controversial physiological role of TSPO and how the mutation affects cholesterol binding. Protein structure. Crystal structures of translocator protein (TSPO) and mutant mimic of a human polymorphism.,Li F, Liu J, Zheng Y, Garavito RM, Ferguson-Miller S Science. 2015 Jan 30;347(6221):555-8. doi: 10.1126/science.1260590. PMID:25635101 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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