1v7a

Crystal structures of adenosine deaminase complexed with potent inhibitors

spinqualitylabelsall models 1v7a, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1v7a is a 1 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: FRC, ZN Related: 1v78, 1v79 Activity: Adenosine deaminase, with EC number 3.5.4.4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [ADA_BOVIN] Catalyzes the hydrolytic deamination of adenosine and 2-deoxyadenosine. Plays an important role in purine metabolism and in adenosine homeostasis. Modulates signaling by extracellular adenosine, and so contributes indirectly to cellular signaling events. Acts as a positive regulator of T-cell coactivation, by binding DPP4. Its interaction with DPP4 regulates lymphocyte-epithelial cell adhesion (By similarity). 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 We disclose optimization efforts based on the novel non-nucleoside adenosine deaminase (ADA) inhibitor, 4 (K(i) = 680 nM). Structure-based drug design utilizing the crystal structure of the 4/ADA complex led to discovery of 5 (K(i) = 11 nM, BA = 30% in rats). Furthermore, from metabolic considerations, we discovered two inhibitors with improved oral bioavailability [6 (K(i) = 13 nM, BA = 44%) and 7 (K(i) = 9.8 nM, BA = 42%)]. 6 demonstrated in vivo efficacy in models of inflammation and lymphoma. Structure-based design and synthesis of non-nucleoside, potent, and orally bioavailable adenosine deaminase inhibitors.,Terasaka T, Okumura H, Tsuji K, Kato T, Nakanishi I, Kinoshita T, Kato Y, Kuno M, Seki N, Naoe Y, Inoue T, Tanaka K, Nakamura K J Med Chem. 2004 May 20;47(11):2728-31. PMID:15139750 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Adenosine deaminase

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