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1r02

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(New page: 200px<br /> <applet load="1r02" size="450" color="white" frame="true" align="right" spinBox="true" caption="1r02" /> '''Solution structure of Human Orexin-A:Regula...)
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'''Solution structure of Human Orexin-A:Regulator of Appetite and Wakefulness'''<br />
'''Solution structure of Human Orexin-A:Regulator of Appetite and Wakefulness'''<br />
==Overview==
==Overview==
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Orexin-A and orexin-B (hypocretin-1 and hypocretin-2, respectively) are, important hypothalamic neuro-peptides, which are encoded by a single mRNA, transcript and stimulate food intake as well as regulate wakefulness. Here, we determined the solution structure of orexin-A by NMR spectroscopy and, by simulated-annealing calculation. The structural features of orexin-A, involve two alpha-helices, with the hydrophobic residues disposed to on, one side of helix, and hydrophilic residues to the other. A hydrophilic, turn induced by two disulfide bonds provides the key difference between, orexin-A and -B. With previous mutagenic studies, the derived structure of, orexin-A provides us with a structure-functional view for novel drug, design.
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Orexin-A and orexin-B (hypocretin-1 and hypocretin-2, respectively) are important hypothalamic neuro-peptides, which are encoded by a single mRNA transcript and stimulate food intake as well as regulate wakefulness. Here we determined the solution structure of orexin-A by NMR spectroscopy and by simulated-annealing calculation. The structural features of orexin-A involve two alpha-helices, with the hydrophobic residues disposed to on one side of helix, and hydrophilic residues to the other. A hydrophilic turn induced by two disulfide bonds provides the key difference between orexin-A and -B. With previous mutagenic studies, the derived structure of orexin-A provides us with a structure-functional view for novel drug design.
==Disease==
==Disease==
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==About this Structure==
==About this Structure==
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1R02 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1R02 OCA].
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1R02 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R02 OCA].
==Reference==
==Reference==
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[[Category: Single protein]]
[[Category: Single protein]]
[[Category: Hong, E.]]
[[Category: Hong, E.]]
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[[Category: Kim, H.Y.]]
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[[Category: Kim, H Y.]]
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[[Category: Kim, J.I.]]
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[[Category: Kim, J I.]]
[[Category: Lee, W.]]
[[Category: Lee, W.]]
[[Category: helix-loop-helix]]
[[Category: helix-loop-helix]]
[[Category: turn]]
[[Category: turn]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 18:58:02 2007''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:45:31 2008''

Revision as of 12:45, 21 February 2008


1r02

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Solution structure of Human Orexin-A:Regulator of Appetite and Wakefulness

Contents

Overview

Orexin-A and orexin-B (hypocretin-1 and hypocretin-2, respectively) are important hypothalamic neuro-peptides, which are encoded by a single mRNA transcript and stimulate food intake as well as regulate wakefulness. Here we determined the solution structure of orexin-A by NMR spectroscopy and by simulated-annealing calculation. The structural features of orexin-A involve two alpha-helices, with the hydrophobic residues disposed to on one side of helix, and hydrophilic residues to the other. A hydrophilic turn induced by two disulfide bonds provides the key difference between orexin-A and -B. With previous mutagenic studies, the derived structure of orexin-A provides us with a structure-functional view for novel drug design.

Disease

Known diseases associated with this structure: Narcolepsy OMIM:[602358], Porphyria variegata OMIM:[600923]

About this Structure

1R02 is a Single protein structure of sequence from [1]. Full crystallographic information is available from OCA.

Reference

Solution structure of human orexin-A: regulator of appetite and wakefulness., Kim HY, Hong E, Kim JI, Lee W, J Biochem Mol Biol. 2004 Sep 30;37(5):565-73. PMID:15479620

Page seeded by OCA on Thu Feb 21 14:45:31 2008

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