2ob1

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[[Image:2ob1.gif|left|200px]]
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{{STRUCTURE_2ob1| PDB=2ob1 | SCENE= }}
{{STRUCTURE_2ob1| PDB=2ob1 | SCENE= }}
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'''ppm1 with 1,8-ANS'''
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===ppm1 with 1,8-ANS===
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==Overview==
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A technique is described whereby the addition of low concentrations (millimolar to micromolar) of the fluorescent dye 1,8-ANS to the protein solution prior to crystallization results in crystallization experiments in which protein crystals are strongly contrasted above background artifacts when exposed to low-intensity UV radiation. As 1,8-ANS does not covalently modify the protein sample, no further handling or purification steps are necessary. The system has been tested on a wide variety of protein samples and it has been shown that the addition of 1,8-ANS has no discernible effect on the crystallization frequencies or crystallization conditions of these proteins. As 1,8-ANS interacts with a wide variety of proteins, this is proposed to be a general solution for the automated classification of protein crystallization images and the detection of protein crystals. The results also demonstrate the expected discrimination between salt and protein crystals, as well as allowing the straightforward identification of small crystals that grow in precipitate or under a protein skin.
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(as it appears on PubMed at http://www.pubmed.gov), where 17372358 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17372358}}
==About this Structure==
==About this Structure==
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[[Category: Groves, M R.]]
[[Category: Groves, M R.]]
[[Category: Ppm1 in the presence of 1,8-an]]
[[Category: Ppm1 in the presence of 1,8-an]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 10:32:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 17:36:35 2008''

Revision as of 14:36, 27 July 2008

Image:2ob1.png

Template:STRUCTURE 2ob1

ppm1 with 1,8-ANS

Template:ABSTRACT PUBMED 17372358

About this Structure

2OB1 is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

A method for the general identification of protein crystals in crystallization experiments using a noncovalent fluorescent dye., Groves MR, Muller IB, Kreplin X, Muller-Dieckmann J, Acta Crystallogr D Biol Crystallogr. 2007 Apr;63(Pt 4):526-35. Epub 2007, Mar 16. PMID:17372358

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