1yi3

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[[Image:1yi3.gif|left|200px]]
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{{STRUCTURE_1yi3| PDB=1yi3 | SCENE= }}
{{STRUCTURE_1yi3| PDB=1yi3 | SCENE= }}
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'''Crystal Structure of Pim-1 bound to LY294002'''
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===Crystal Structure of Pim-1 bound to LY294002===
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==Overview==
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Pim-1 is an oncogene-encoded serine/threonine kinase primarily expressed in hematopoietic and germ cell lines. Pim-1 kinase was originally identified in Maloney murine leukemia virus-induced T-cell lymphomas and is associated with multiple cellular functions such as proliferation, survival, differentiation, apoptosis, and tumorigenesis (Wang, Z., Bhattacharya, N., Weaver, M., Petersen, K., Meyer, M., Gapter, L., and Magnuson, N. S. (2001) J. Vet. Sci. 2, 167-179). The crystal structures of Pim-1 complexed with staurosporine and adenosine were determined. Although a typical two-domain serine/threonine protein kinase fold is observed, the inter-domain hinge region is unusual in both sequence and conformation; a two-residue insertion causes the hinge to bulge away from the ATP-binding pocket, and a proline residue in the hinge removes a conserved main chain hydrogen bond donor. Without this hydrogen bond, van der Waals interactions with the hinge serve to position the ligand. The hinge region of Pim-1 resembles that of phosphatidylinositol 3-kinase more closely than it does other protein kinases. Although the phosphatidylinositol 3-kinase inhibitor LY294002 also inhibits Pim-1, the structure of the LY294002.Pim-1 complex reveals a new binding mode that may be general for Ser/Thr kinases.
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(as it appears on PubMed at http://www.pubmed.gov), where 15657054 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15657054}}
==About this Structure==
==About this Structure==
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[[Category: Pi3k]]
[[Category: Pi3k]]
[[Category: Protein kinase]]
[[Category: Protein kinase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 16:20:39 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 19:39:00 2008''

Revision as of 16:39, 28 July 2008

Image:1yi3.png

Template:STRUCTURE 1yi3

Crystal Structure of Pim-1 bound to LY294002

Template:ABSTRACT PUBMED 15657054

About this Structure

1YI3 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Pim-1 ligand-bound structures reveal the mechanism of serine/threonine kinase inhibition by LY294002., Jacobs MD, Black J, Futer O, Swenson L, Hare B, Fleming M, Saxena K, J Biol Chem. 2005 Apr 8;280(14):13728-34. Epub 2005 Jan 17. PMID:15657054

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