1ce0

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{{STRUCTURE_1ce0| PDB=1ce0 | SCENE= }}
{{STRUCTURE_1ce0| PDB=1ce0 | SCENE= }}
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'''TRIMERIZATION SPECIFICITY IN HIV-1 GP41: ANALYSIS WITH A GCN4 LEUCINE ZIPPER MODEL'''
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===TRIMERIZATION SPECIFICITY IN HIV-1 GP41: ANALYSIS WITH A GCN4 LEUCINE ZIPPER MODEL===
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==Overview==
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The envelope glycoprotein of human immunodeficiency virus type 1 (HIV-1) consists of a complex of two noncovalently associated subunits, gp120 and gp41. Formation of gp120/gp41 oligomers is thought to be dependent on a 4-3 hydrophobic (heptad) repeat located in the amino-terminal region of the gp41 molecule. We have investigated the role of this heptad repeat in determining the oligomeric structure of gp41 by introducing its buried core residues into the first (a) and fourth (d) positions of the GCN4 leucine-zipper dimerization domain. The mutant peptides fold into trimeric, helical structures, as shown by circular dichroism and equilibrium sedimentation centrifugation. The 2.4 A resolution crystal structure of one such trimer reveals a parallel three-stranded, alpha-helical coiled coil. Thus, the buried core residues from the gp41 heptad repeat direct trimer formation. We suggest that the conserved amino-terminal heptad repeat within the gp41 ectodomain possesses trimerization specificity.
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(as it appears on PubMed at http://www.pubmed.gov), where 10220324 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10220324}}
==About this Structure==
==About this Structure==
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[[Category: Leucine zipper]]
[[Category: Leucine zipper]]
[[Category: Protein oligomerization]]
[[Category: Protein oligomerization]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 12:37:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 20:36:46 2008''

Revision as of 17:36, 30 June 2008

Image:1ce0.png

Template:STRUCTURE 1ce0

TRIMERIZATION SPECIFICITY IN HIV-1 GP41: ANALYSIS WITH A GCN4 LEUCINE ZIPPER MODEL

Template:ABSTRACT PUBMED 10220324

About this Structure

1CE0 is a Single protein structure of sequence from Human immunodeficiency virus 1. Full crystallographic information is available from OCA.

Reference

Trimerization specificity in HIV-1 gp41: analysis with a GCN4 leucine zipper model., Shu W, Ji H, Lu M, Biochemistry. 1999 Apr 27;38(17):5378-85. PMID:10220324

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