1ce0 | pdb_00001ce0

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

spinqualitylabelsall models 1ce0, resolution 2.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1ce0 is a 3 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed 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. 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 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

Proteopedia Page Contributors and Editors (what is this?)

OCA