1cju

COMPLEX OF GS-ALPHA WITH THE CATALYTIC DOMAINS OF MAMMALIAN ADENYLYL CYCLASE: COMPLEX WITH BETA-L-2',3'-DIDEOXYATP AND MG

spinqualitylabelsall models 1cju, resolution 2.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1cju is a 3 chain structure with sequence from Bos taurus, Canis lupus familiaris and Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.8Å Ligands: CL, DAD, FOK, GSP, MG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ADCY5_CANLF Catalyzes the formation of the signaling molecule cAMP in response to G-protein signaling (PubMed:1618857, PubMed:8428899, PubMed:10427002, PubMed:11087399, PubMed:15591060, PubMed:16766715, PubMed:19243146). Mediates signaling downstream of ADRB1. Regulates the increase of free cytosolic Ca(2+) in response to increased blood glucose levels and contributes to the regulation of Ca(2+)-dependent insulin secretion (By similarity).[UniProtKB:O95622] Lacks catalytic activity by itself, but can associate with isoform 1 to form active adenylyl cyclase. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Adenylyl cyclase (AC) converts adenosine triphosphate (ATP) to cyclic adenosine monophosphate, a ubiquitous second messenger that regulates many cellular functions. Recent structural studies have revealed much about the structure and function of mammalian AC but have not fully defined its active site or catalytic mechanism. Four crystal structures were determined of the catalytic domains of AC in complex with two different ATP analogs and various divalent metal ions. These structures provide a model for the enzyme-substrate complex and conclusively demonstrate that two metal ions bind in the active site. The similarity of the active site of AC to those of DNA polymerases suggests that the enzymes catalyze phosphoryl transfer by the same two-metal-ion mechanism and likely have evolved from a common ancestor. Two-metal-Ion catalysis in adenylyl cyclase.,Tesmer JJ, Sunahara RK, Johnson RA, Gosselin G, Gilman AG, Sprang SR Science. 1999 Jul 30;285(5428):756-60. PMID:10427002 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also 3D Adenylyl cyclase 3D structures

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