1e78

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{{Seed}}
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{{STRUCTURE_1e78| PDB=1e78 | SCENE= }}
{{STRUCTURE_1e78| PDB=1e78 | SCENE= }}
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'''CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN'''
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===CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN===
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==Overview==
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Human serum albumin (HSA) is one of the most abundant proteins in the circulatory system and plays a key role in the transport of fatty acids, metabolites, and drugs. For many drugs, binding to serum albumin is a critical determinant of their distribution and pharmacokinetics; however, there have as yet been no high resolution crystal structures published of drug-albumin complexes. Here we describe high resolution crystal structures of HSA with two of the most widely used general anesthetics, propofol and halothane. In addition, we describe a crystal structure of HSA complexed with both halothane and the fatty acid, myristate. We show that the intravenous anesthetic propofol binds at two discrete sites on HSA in preformed pockets that have been shown to accommodate fatty acids. Similarly we show that the inhalational agent halothane binds (at concentrations in the pharmacologically relevant range) at three sites that are also fatty acid binding loci. At much higher halothane concentrations, we have identified additional sites that are occupied. All of the higher affinity anesthetic binding sites are amphiphilic in nature, with both polar and apolar parts, and anesthetic binding causes only minor changes in local structure.
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The line below this paragraph, {{ABSTRACT_PUBMED_10940303}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 10940303 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10940303}}
==About this Structure==
==About this Structure==
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[[Category: Albumin]]
[[Category: Albumin]]
[[Category: Carrier protein]]
[[Category: Carrier protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:45:04 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 00:16:03 2008''

Revision as of 21:16, 30 June 2008

Image:1e78.png

Template:STRUCTURE 1e78

CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN

Template:ABSTRACT PUBMED 10940303

About this Structure

1E78 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Binding of the general anesthetics propofol and halothane to human serum albumin. High resolution crystal structures., Bhattacharya AA, Curry S, Franks NP, J Biol Chem. 2000 Dec 8;275(49):38731-8. PMID:10940303

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