1ctp: Difference between revisions
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[[Image:1ctp.gif|left|200px]] | [[Image:1ctp.gif|left|200px]] | ||
'''STRUCTURE OF THE MAMMALIAN CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE AND AN INHIBITOR PEPTIDE DISPLAYS AN OPEN CONFORMATION''' | {{Structure | ||
|PDB= 1ctp |SIZE=350|CAPTION= <scene name='initialview01'>1ctp</scene>, resolution 2.9Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=PO3:PHOSPHITE+ION'>PO3</scene>, <scene name='pdbligand=MYR:MYRISTIC+ACID'>MYR</scene> and <scene name='pdbligand=TYI:3,5-DIIODOTYROSINE'>TYI</scene> | |||
|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] | |||
|GENE= | |||
}} | |||
'''STRUCTURE OF THE MAMMALIAN CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE AND AN INHIBITOR PEPTIDE DISPLAYS AN OPEN CONFORMATION''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1CTP is a [ | 1CTP is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CTP OCA]. | ||
==Reference== | ==Reference== | ||
Structure of the mammalian catalytic subunit of cAMP-dependent protein kinase and an inhibitor peptide displays an open conformation., Karlsson R, Zheng J, Xuong N, Taylor SS, Sowadski JM, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):381-8. PMID:[http:// | Structure of the mammalian catalytic subunit of cAMP-dependent protein kinase and an inhibitor peptide displays an open conformation., Karlsson R, Zheng J, Xuong N, Taylor SS, Sowadski JM, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):381-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15299513 15299513] | ||
[[Category: Non-specific serine/threonine protein kinase]] | [[Category: Non-specific serine/threonine protein kinase]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: transferase(phosphotransferase)]] | [[Category: transferase(phosphotransferase)]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:28:44 2008'' | ||
Revision as of 11:28, 20 March 2008
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| , resolution 2.9Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Activity: | Non-specific serine/threonine protein kinase, with EC number 2.7.11.1 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF THE MAMMALIAN CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE AND AN INHIBITOR PEPTIDE DISPLAYS AN OPEN CONFORMATION
OverviewOverview
The crystal structure of a binary complex of the porcine heart catalytic (C) subunit of cAMP-dependent protein kinase (space group P4(1)32; a = 171.5 A) complexed with a di-iodinated peptide inhibitor, PKI(5-24), has been solved and refined to 2.9 A resolution with an overall R of 21.1%. The r.m.s. deviations from ideal bond lengths and angles are 0.022 A and 4.3 degrees. A single isotropic B of 17 A(2) was used for all atoms. The structure solution was carried out initially by molecular replacement of electron density followed by refinement against atomic coordinates from orthorhombic crystals of a binary complex of the mouse recombinant enzyme previously described [Knighton, Zheng, Ten Eyck, Ashford, Xuong, Taylor & Sowadski (1991). Science, 253, 407-414]. The most striking difference between the two crystal structures is a large displacement of the small lobe of the enzyme. In the cubic crystal, the beta-sheet of the small lobe is rotated by 15 degrees and translated by 1.9 A with respect to the orthorhombic crystal. Possible explanations for why this binary complex crystallized in an open conformation in contrast to a similar binary complex of the recombinant enzyme are discussed. This study demonstrates that considerable information about parts of a crystal structure can be obtained without a complete crystal structure analysis. Specifically, the six rigid-group parameters of a poly alanine model of the beta-structure were obtained satisfactorily from a crystal structure by refinement of difference Fourier coefficients based on an approximate partial structure model.
About this StructureAbout this Structure
1CTP is a Protein complex structure of sequences from Sus scrofa. Full crystallographic information is available from OCA.
ReferenceReference
Structure of the mammalian catalytic subunit of cAMP-dependent protein kinase and an inhibitor peptide displays an open conformation., Karlsson R, Zheng J, Xuong N, Taylor SS, Sowadski JM, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):381-8. PMID:15299513
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