4g1f | pdb_00004g1f

Crystal Structure of human Dipeptidyl Peptidase IV in complex with a pyridopyrimidinedione analogue

spinqualitylabelsall models 4g1f, resolution 2.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4g1f is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.9Å Ligands: 0WG, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DPP4_HUMAN Cell surface glycoprotein receptor involved in the costimulatory signal essential for T-cell receptor (TCR)-mediated T-cell activation. Acts as a positive regulator of T-cell coactivation, by binding at least ADA, CAV1, IGF2R, and PTPRC. Its binding to CAV1 and CARD11 induces T-cell proliferation and NF-kappa-B activation in a T-cell receptor/CD3-dependent manner. Its interaction with ADA also regulates lymphocyte-epithelial cell adhesion. In association with FAP is involved in the pericellular proteolysis of the extracellular matrix (ECM), the migration and invasion of endothelial cells into the ECM. May be involved in the promotion of lymphatic endothelial cells adhesion, migration and tube formation. When overexpressed, enhanced cell proliferation, a process inhibited by GPC3. Acts also as a serine exopeptidase with a dipeptidyl peptidase activity that regulates various physiological processes by cleaving peptides in the circulation, including many chemokines, mitogenic growth factors, neuropeptides and peptide hormones. Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline. Publication Abstract from PubMed Dipeptidyl peptidase IV (DPP-4) inhibitors have been shown to enhance GLP-1 levels and thereby improve hyperglycemia in type II diabetes. From a small fragment hit, using structure-based design, we have discovered a new class of non-covalent, potent and selective DPP-4 inhibitors. Structure-based design of pyridopyrimidinediones as dipeptidyl peptidase IV inhibitors.,Lam B, Zhang Z, Stafford JA, Skene RJ, Shi L, Gwaltney SL 2nd Bioorg Med Chem Lett. 2012 Nov 1;22(21):6628-31. doi: 10.1016/j.bmcl.2012.08.110., Epub 2012 Sep 7. PMID:23025999 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Dipeptidyl peptidase 3D structures

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