1hap

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{{STRUCTURE_1hap| PDB=1hap | SCENE= }}
{{STRUCTURE_1hap| PDB=1hap | SCENE= }}
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'''COMPLEX OF HUMAN ALPHA-THROMBIN WITH A 15MER OLIGONUCLEOTIDE GGTTGGTGTGGTTGG (BASED ON X-RAY MODEL OF DNA)'''
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===COMPLEX OF HUMAN ALPHA-THROMBIN WITH A 15MER OLIGONUCLEOTIDE GGTTGGTGTGGTTGG (BASED ON X-RAY MODEL OF DNA)===
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==Overview==
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The structure of a complex between thrombin and a GGTTGGTGTGGTTGG DNA 15-mer has been analyzed crystallographically. The solution NMR structure of the 15-mer has two stacked G-quartets similar to that found in the previous X-ray structure determination of the 15-mer-thrombin complex [Padmanabhan, Padmanabhan, Ferrara, Sadler &amp; Tulinsky (1993). J. Biol. Chem. 268, 17651-17654]; the strand polarity, however, is reversed from that of the crystallographic structure. The structure of the complex here has been redetermined with better diffraction data confirming the previous crystallographic structure but also indicating that the NMR solution structure fits equally well. Both 15-mer complex structures refined to an R value of about 0.16 presenting a disconcerting ambiguity. Since the two 15-mer structures associate with thrombin in different ways (through the TGT loop in the X-ray and TT loop in the NMR model), other independent lines of physical or chemical evidence are required to resolve the ambiguity.
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(as it appears on PubMed at http://www.pubmed.gov), where 15299700 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15299700}}
==About this Structure==
==About this Structure==
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[[Category: Coagulation/inhibitor/dna]]
[[Category: Coagulation/inhibitor/dna]]
[[Category: Quadruple helix]]
[[Category: Quadruple helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 07:54:31 2008''

Revision as of 04:54, 1 July 2008

Image:1hap.png

Template:STRUCTURE 1hap

COMPLEX OF HUMAN ALPHA-THROMBIN WITH A 15MER OLIGONUCLEOTIDE GGTTGGTGTGGTTGG (BASED ON X-RAY MODEL OF DNA)

Template:ABSTRACT PUBMED 15299700

About this Structure

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

Reference

An ambiguous structure of a DNA 15-mer thrombin complex., Padmanabhan K, Tulinsky A, Acta Crystallogr D Biol Crystallogr. 1996 Mar 1;52(Pt 2):272-82. PMID:15299700

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