1svh

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[[Image:1svh.gif|left|200px]]<br /><applet load="1svh" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1svh.gif|left|200px]]
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caption="1svh, resolution 2.30&Aring;" />
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'''Crystal Structure of Protein Kinase A in Complex with Azepane Derivative 8'''<br />
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{{Structure
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|PDB= 1svh |SIZE=350|CAPTION= <scene name='initialview01'>1svh</scene>, resolution 2.30&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=I08:(3R,4S)-N-(4-{TRANS-2-[4-(2-FLUORO-6-HYDROXY-3-METHOXY-BENZOYL)-PHENYL]-VINYL}-AZEPAN-3-YL)-ISONICOTINAMIDE'>I08</scene>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1]
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|GENE= PRKACA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 Bos taurus])
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}}
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'''Crystal Structure of Protein Kinase A in Complex with Azepane Derivative 8'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1SVH is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with <scene name='pdbligand=I08:'>I08</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SVH OCA].
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1SVH is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SVH OCA].
==Reference==
==Reference==
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Structure-based optimization of novel azepane derivatives as PKB inhibitors., Breitenlechner CB, Wegge T, Berillon L, Graul K, Marzenell K, Friebe WG, Thomas U, Schumacher R, Huber R, Engh RA, Masjost B, J Med Chem. 2004 Mar 11;47(6):1375-90. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=14998327 14998327]
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Structure-based optimization of novel azepane derivatives as PKB inhibitors., Breitenlechner CB, Wegge T, Berillon L, Graul K, Marzenell K, Friebe WG, Thomas U, Schumacher R, Huber R, Engh RA, Masjost B, J Med Chem. 2004 Mar 11;47(6):1375-90. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14998327 14998327]
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Non-specific serine/threonine protein kinase]]
[[Category: Non-specific serine/threonine protein kinase]]
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[[Category: serine/threonine-protein kinase]]
[[Category: serine/threonine-protein kinase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:05:36 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:10:08 2008''

Revision as of 12:10, 20 March 2008

Image:1svh.gif


PDB ID 1svh

Drag the structure with the mouse to rotate
, resolution 2.30Å
Ligands:
Gene: PRKACA (Bos taurus)
Activity: Non-specific serine/threonine protein kinase, with EC number 2.7.11.1
Coordinates: save as pdb, mmCIF, xml



Crystal Structure of Protein Kinase A in Complex with Azepane Derivative 8


Overview

Novel azepane derivatives were prepared and evaluated for protein kinase B (PKB-alpha) and protein kinase A (PKA) inhibition. The original (-)-balanol-derived lead structure (4R)-4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-benzoic acid (3R)-3-[(pyridine-4-carbonyl)amino]-azepan-4-yl ester (1) (IC(50) (PKB-alpha) = 5 nM) which contains an ester moiety was found to be plasma unstable and therefore unsuitable as a drug. Based upon molecular modeling studies using the crystal structure of the complex between PKA and 1, the five compounds N-[(3R,4R)-4-[4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-benzoylamino]-azepa n-3-yl]-isonicotinamide (4), (3R,4R)-N-[4-[4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-benzyloxy]-azepan-3 -yl]-isonicotinamide (5), N-[(3R,4S)-4-[4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-phenylamino]-methyl ]-azepan-3-yl)-isonicotinamide (6), N-[(3R,4R)-4-[4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-benzylamino]-azepan -3-yl]-isonicotinamide (7), and N-[(3R,4S)-4-(4-[trans-2-[4-(2-fluoro-6-hydroxy-3-methoxy-benzoyl)-phenyl] -vinyl]-azepan-3-yl)-isonicotinamide (8) with linkers isosteric to the ester were designed, synthesized, and tested for in vitro inhibitory activity against PKA and PKB-alpha and for plasma stability in mouse plasma.(1) Compound 4 was found to be plasma stable and highly active (IC(50) (PKB-alpha) = 4 nM). Cocrystals with PKA were obtained for 4, 5, and 8 and analyzed for binding interactions and conformational changes in the ligands and protein in order to rationalize the different activities of the molecules.

About this Structure

1SVH is a Protein complex structure of sequences from Bos taurus. Full crystallographic information is available from OCA.

Reference

Structure-based optimization of novel azepane derivatives as PKB inhibitors., Breitenlechner CB, Wegge T, Berillon L, Graul K, Marzenell K, Friebe WG, Thomas U, Schumacher R, Huber R, Engh RA, Masjost B, J Med Chem. 2004 Mar 11;47(6):1375-90. PMID:14998327

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