3im4

Crystal structure of cAMP-dependent Protein Kinase A Regulatory Subunit I alpha in complex with dual-specific A-Kinase Anchoring Protein 2

spinqualitylabelsall models 3im4, resolution 2.29Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3im4 is a 3 chain structure with sequence from Bos taurus and Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.285Å Ligands: ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function KAP0_BOVIN Regulatory subunit of the cAMP-dependent protein kinases involved in cAMP signaling in cells. 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 A-kinase anchoring proteins (AKAPs) regulate cyclic AMP-dependent protein kinase (PKA) signaling in space and time. Dual-specific AKAP 2 (D-AKAP2) binds to the dimerization/docking (D/D) domain of both RI and RII regulatory subunits of PKA with high affinity. Here we have determined the structures of the RIalpha D/D domain alone and in complex with D-AKAP2. The D/D domain presents an extensive surface for binding through a well-formed N-terminal helix, and this surface restricts the diversity of AKAPs that can interact. The structures also underscore the importance of a redox-sensitive disulfide in affecting AKAP binding. An unexpected shift in the helical register of D-AKAP2 compared to the RIIalpha:D-AKAP2 complex structure makes the mode of binding to RIalpha novel. Finally, the comparison allows us to deduce a molecular explanation for the sequence and spatial determinants of AKAP specificity. Structure of D-AKAP2:PKA RI complex: insights into AKAP specificity and selectivity.,Sarma GN, Kinderman FS, Kim C, von Daake S, Chen L, Wang BC, Taylor SS Structure. 2010 Feb 10;18(2):155-66. PMID:20159461 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also A-kinase anchor protein 3D structures CAMP-dependent protein kinase 3D structures

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