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2aya

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[[Image:2aya.jpg|left|200px]]
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{{STRUCTURE_2aya| PDB=2aya | SCENE= }}
{{STRUCTURE_2aya| PDB=2aya | SCENE= }}
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'''Solution Structure of the C-Terminal 14 kDa Domain of the tau subunit from Escherichia coli DNA Polymerase III'''
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===Solution Structure of the C-Terminal 14 kDa Domain of the tau subunit from Escherichia coli DNA Polymerase III===
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==Overview==
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The solution structure of the C-terminal Domain V of the tau subunit of E. coli DNA polymerase III was determined by nuclear magnetic resonance (NMR) spectroscopy. The fold is unique to tau subunits. Amino acid sequence conservation is pronounced for hydrophobic residues that form the structural core of the protein, indicating that the fold is representative for tau subunits from a wide range of different bacteria. The interaction between the polymerase subunits tau and alpha was studied by NMR experiments where alpha was incubated with full-length C-terminal domain (tau(C)16), and domains shortened at the C-terminus by 11 and 18 residues, respectively. The only interacting residues were found in the C-terminal 30-residue segment of tau, most of which is structurally disordered in free tau(C)16. Since the N- and C-termini of the structured core of tau(C)16 are located close to each other, this limits the possible distance between alpha and the pentameric deltatau2gammadelta' clamp-loader complex and, hence, between the two alpha subunits involved in leading- and lagging-strand DNA synthesis. Analysis of an N-terminally extended construct (tau(C)22) showed that tau(C)14 presents the only part of Domains IVa and V of tau which comprises a globular fold in the absence of other interaction partners.
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(as it appears on PubMed at http://www.pubmed.gov), where 17452361 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17452361}}
==About this Structure==
==About this Structure==
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2AYA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AYA OCA].
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2AYA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AYA OCA].
==Reference==
==Reference==
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[[Category: C-terminus of polymerase iii tau subunit]]
[[Category: C-terminus of polymerase iii tau subunit]]
[[Category: Kh-fold]]
[[Category: Kh-fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 19:37:24 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 16:18:45 2008''

Revision as of 13:18, 28 July 2008

Image:2aya.png

Template:STRUCTURE 2aya

Solution Structure of the C-Terminal 14 kDa Domain of the tau subunit from Escherichia coli DNA Polymerase III

Template:ABSTRACT PUBMED 17452361

About this Structure

2AYA is a Single protein structure of sequence from Escherichia coli. Full experimental information is available from OCA.

Reference

Solution structure of Domains IVa and V of the tau subunit of Escherichia coli DNA polymerase III and interaction with the alpha subunit., Su XC, Jergic S, Keniry MA, Dixon NE, Otting G, Nucleic Acids Res. 2007;35(9):2825-32. Epub 2007 Apr 22. PMID:17452361

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