1pf7

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[[Image:1pf7.gif|left|200px]]
[[Image:1pf7.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1pf7 |SIZE=350|CAPTION= <scene name='initialview01'>1pf7</scene>, resolution 2.60&Aring;
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The line below this paragraph, containing "STRUCTURE_1pf7", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=IMH:1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL'>IMH</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Purine-nucleoside_phosphorylase Purine-nucleoside phosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.1 2.4.2.1] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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|DOMAIN=
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{{STRUCTURE_1pf7| PDB=1pf7 | SCENE= }}
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|RELATEDENTRY=[[1m73|1M73]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1pf7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pf7 OCA], [http://www.ebi.ac.uk/pdbsum/1pf7 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1pf7 RCSB]</span>
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}}
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'''CRYSTAL STRUCTURE OF HUMAN PNP COMPLEXED WITH IMMUCILLIN H'''
'''CRYSTAL STRUCTURE OF HUMAN PNP COMPLEXED WITH IMMUCILLIN H'''
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[[Category: Santos, D S.]]
[[Category: Santos, D S.]]
[[Category: Silva, R G.]]
[[Category: Silva, R G.]]
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[[Category: crystallography]]
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[[Category: Crystallography]]
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[[Category: drug design]]
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[[Category: Drug design]]
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[[Category: purine nucleoside phosphorylase]]
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[[Category: Purine nucleoside phosphorylase]]
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[[Category: synchrotron]]
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[[Category: Synchrotron]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 05:00:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:58:47 2008''
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Revision as of 02:00, 3 May 2008

Image:1pf7.gif

Template:STRUCTURE 1pf7

CRYSTAL STRUCTURE OF HUMAN PNP COMPLEXED WITH IMMUCILLIN H


Overview

Purine nucleoside phosphorylase (PNP) catalyzes the phosphorolysis of the N-ribosidic bonds of purine nucleosides and deoxynucleosides. PNP is a target for inhibitor development aiming at T-cell immune response modulation. This work reports on the crystallographic study of the complex of human PNP-immucillin-H (HsPNP-ImmH) solved at 2.6A resolution using synchrotron radiation. Immucillin-H (ImmH) inhibits the growth of malignant T-cell lines in the presence of deoxyguanosine without affecting non-T-cell tumor lines. ImmH inhibits activated normal human T cells after antigenic stimulation in vitro. These biological effects of ImmH suggest that this agent may have utility in the treatment of certain human diseases characterized by abnormal T-cell growth or activation. This is the first structural report of human PNP complexed with immucillin-H. The comparison of the complex HsPNP-ImmH with recent crystallographic structures of human PNP explains the high specificity of immucillin-H for human PNP.

About this Structure

1PF7 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis for inhibition of human PNP by immucillin-H., Filgueira de Azevedo W Jr, Canduri F, Marangoni dos Santos D, Pereira JH, Dias MV, Silva RG, Mendes MA, Basso LA, Palma MS, Santos DS, Biochem Biophys Res Commun. 2003 Oct 3;309(4):917-22. PMID:13679061 Page seeded by OCA on Sat May 3 05:00:57 2008

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