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New page: left|200px<br /><applet load="2ojf" size="450" color="white" frame="true" align="right" spinBox="true" caption="2ojf, resolution 2.10Å" /> '''Crystal structure of...
 
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[[Image:2ojf.gif|left|200px]]<br /><applet load="2ojf" size="450" color="white" frame="true" align="right" spinBox="true"  
[[Image:2ojf.gif|left|200px]]<br /><applet load="2ojf" size="350" color="white" frame="true" align="right" spinBox="true"  
caption="2ojf, resolution 2.10&Aring;" />
caption="2ojf, resolution 2.10&Aring;" />
'''Crystal structure of Protein Kinase A in complex with Pyridine-Pyrazolopyridine based inhibitors'''<br />
'''Crystal structure of Protein Kinase A in complex with Pyridine-Pyrazolopyridine based inhibitors'''<br />


==Overview==
==Overview==
Thr-211 is one of three different amino acid residues in the kinase domain, of protein kinase B/Akt as compared to protein kinase A (PKA), a closely, related analog in the same AGC family. In an attempt to improve the, potency and selectivity of our indazole-pyridine series of Akt inhibitors, over PKA, efforts have focused on the incorporation of a chemical, functionality to interact with the hydroxy group of Thr-211. Several, substituents including an oxygen anion, amino, and nitro groups have been, introduced at the C-6 position of the indazole scaffold, leading to a, significant drop in Akt potency. Incorporation of a nitrogen atom into the, phenyl ring at the same position (i.e., 9f) maintained the Akt activity, and, in some cases, improved the selectivity over PKA. The, structure-activity relationships of the new pyridine-pyrazolopyridine, series of Akt inhibitors and their structural features when bound to PKA, are also discussed.
Thr-211 is one of three different amino acid residues in the kinase domain of protein kinase B/Akt as compared to protein kinase A (PKA), a closely related analog in the same AGC family. In an attempt to improve the potency and selectivity of our indazole-pyridine series of Akt inhibitors over PKA, efforts have focused on the incorporation of a chemical functionality to interact with the hydroxy group of Thr-211. Several substituents including an oxygen anion, amino, and nitro groups have been introduced at the C-6 position of the indazole scaffold, leading to a significant drop in Akt potency. Incorporation of a nitrogen atom into the phenyl ring at the same position (i.e., 9f) maintained the Akt activity and, in some cases, improved the selectivity over PKA. The structure-activity relationships of the new pyridine-pyrazolopyridine series of Akt inhibitors and their structural features when bound to PKA are also discussed.


==About this Structure==
==About this Structure==
2OJF is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with 4PY as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/cAMP-dependent_protein_kinase cAMP-dependent protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.11 2.7.11.11] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2OJF OCA].  
2OJF is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with <scene name='pdbligand=4PY:'>4PY</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/cAMP-dependent_protein_kinase cAMP-dependent protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.11 2.7.11.11] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OJF OCA].  


==Reference==
==Reference==
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[[Category: Single protein]]
[[Category: Single protein]]
[[Category: cAMP-dependent protein kinase]]
[[Category: cAMP-dependent protein kinase]]
[[Category: Stoll, V.S.]]
[[Category: Stoll, V S.]]
[[Category: 4PY]]
[[Category: 4PY]]
[[Category: akt]]
[[Category: akt]]
[[Category: protein kinase a]]
[[Category: protein kinase a]]


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