1g8m
From Proteopedia
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| - | [[Image:1g8m.jpg|left|200px]] | + | [[Image:1g8m.jpg|left|200px]] |
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| - | '''CRYSTAL STRUCTURE OF AVIAN ATIC, A BIFUNCTIONAL TRANSFORMYLASE AND CYCLOHYDROLASE ENZYME IN PURINE BIOSYNTHESIS AT 1.75 ANG. RESOLUTION''' | + | {{Structure |
| + | |PDB= 1g8m |SIZE=350|CAPTION= <scene name='initialview01'>1g8m</scene>, resolution 1.75Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=K:POTASSIUM+ION'>K</scene> and <scene name='pdbligand=G:GUANOSINE-5'-MONOPHOSPHATE'>G</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= PURH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 Gallus gallus]) | ||
| + | }} | ||
| + | |||
| + | '''CRYSTAL STRUCTURE OF AVIAN ATIC, A BIFUNCTIONAL TRANSFORMYLASE AND CYCLOHYDROLASE ENZYME IN PURINE BIOSYNTHESIS AT 1.75 ANG. RESOLUTION''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1G8M is a [ | + | 1G8M is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G8M OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of a bifunctional transformylase and cyclohydrolase enzyme in purine biosynthesis., Greasley SE, Horton P, Ramcharan J, Beardsley GP, Benkovic SJ, Wilson IA, Nat Struct Biol. 2001 May;8(5):402-6. PMID:[http:// | + | Crystal structure of a bifunctional transformylase and cyclohydrolase enzyme in purine biosynthesis., Greasley SE, Horton P, Ramcharan J, Beardsley GP, Benkovic SJ, Wilson IA, Nat Struct Biol. 2001 May;8(5):402-6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11323713 11323713] |
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: K]] | [[Category: K]] | ||
[[Category: 1 alpha + beta domain]] | [[Category: 1 alpha + beta domain]] | ||
| - | [[Category: 2 functional domains; impch domain = alpha/beta/alpha; aicar tfase = 2 alpha/beta/alpha | + | [[Category: 2 functional domains; impch domain = alpha/beta/alpha; aicar tfase = 2 alpha/beta/alpha domain]] |
[[Category: homodimer]] | [[Category: homodimer]] | ||
| - | ''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 11:19:41 2008'' |
Revision as of 09:19, 20 March 2008
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| , resolution 1.75Å | |||||||
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| Ligands: | and | ||||||
| Gene: | PURH (Gallus gallus) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF AVIAN ATIC, A BIFUNCTIONAL TRANSFORMYLASE AND CYCLOHYDROLASE ENZYME IN PURINE BIOSYNTHESIS AT 1.75 ANG. RESOLUTION
Overview
ATIC, the product of the purH gene, is a 64 kDa bifunctional enzyme that possesses the final two activities in de novo purine biosynthesis, AICAR transformylase and IMP cyclohydrolase. The crystal structure of avian ATIC has been determined to 1.75 A resolution by the MAD method using a Se-methionine modified enzyme. ATIC forms an intertwined dimer with an extensive interface of approximately 5,000 A(2) per monomer. Each monomer is composed of two novel, separate functional domains. The N-terminal domain (up to residue 199) is responsible for the IMPCH activity, whereas the AICAR Tfase activity resides in the C-terminal domain (200-593). The active sites of the IMPCH and AICAR Tfase domains are approximately 50 A apart, with no structural evidence of a tunnel connecting the two active sites. The crystal structure of ATIC provides a framework to probe both catalytic mechanisms and to design specific inhibitors for use in cancer chemotherapy and inflammation.
About this Structure
1G8M is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.
Reference
Crystal structure of a bifunctional transformylase and cyclohydrolase enzyme in purine biosynthesis., Greasley SE, Horton P, Ramcharan J, Beardsley GP, Benkovic SJ, Wilson IA, Nat Struct Biol. 2001 May;8(5):402-6. PMID:11323713
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