3bdq

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{{STRUCTURE_3bdq| PDB=3bdq | SCENE= }}
{{STRUCTURE_3bdq| PDB=3bdq | SCENE= }}
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'''Room Tempreture Crystal Structure of Sterol Carrier Protein-2 Like-2'''
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===Room Tempreture Crystal Structure of Sterol Carrier Protein-2 Like-2===
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==Overview==
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Mosquito sterol carrier protein-2 (AeSCP-2) and sterol carrier protein-2-like2 (AeSCP-2L2) are members of the SCP-2 protein family with similar expression profiles in the mosquito life cycle. In an effort to understand how lipids can be transported by different SCP-2 proteins, the three-dimensional crystal structure of AeSCP-2L2 was solved at 1.7 A resolution. AeSCP-2L2 forms a dimer and binds three fatty acids, one of which resides in a position within the internal cavity at a right angle to the others. This first report of ligand-bound dimerized protein in the SCP-2 protein family indicates that the family has a much more divergent mode of interaction with ligands than previously reported. The potential function of AeSCP-2L2 was investigated via in vivo incorporation of [(3)H]cholesterol and [(3)H]palmitic acid. Overexpression of AeSCP-2L2 in mosquito cells leads to an increased uptake of free fatty acid, whereas knockdown of AeSCP-2L2 in adult females decreases the accumulation of free fatty acid in the fat body from a blood meal. In contrast, overexpression or knockdown of AeSCP-2L2 has no effect on cholesterol uptake. Our results suggest that the main function of AeSCP-2L2 is as a general intracellular fatty acid carrier, as opposed to having a dedicated role in cholesterol transport.
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==About this Structure==
==About this Structure==
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[[Category: Lipid transport]]
[[Category: Lipid transport]]
[[Category: Sterol carrier protein]]
[[Category: Sterol carrier protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 01:20:16 2008''

Revision as of 22:20, 28 July 2008

Image:3bdq.png

Template:STRUCTURE 3bdq

Room Tempreture Crystal Structure of Sterol Carrier Protein-2 Like-2

Template:ABSTRACT PUBMED 18084051

About this Structure

3BDQ is a Single protein structure of sequence from Aedes aegypti. Full crystallographic information is available from OCA.

Reference

Three-dimensional structure/function analysis of SCP-2-like2 reveals differences among SCP-2 family members., Dyer DH, Wessely V, Forest KT, Lan Q, J Lipid Res. 2008 Mar;49(3):644-53. Epub 2007 Dec 15. PMID:18084051

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