1bau
From Proteopedia
|
NMR STRUCTURE OF THE DIMER INITIATION COMPLEX OF HIV-1 GENOMIC RNA, MINIMIZED AVERAGE STRUCTURE
Overview
Retroviral genomes must dimerize to be fully infectious. Dimerization is directed by a unique RNA hairpin structure with a palindrome in its loop: hairpins of two strands first associate transiently through their loops, and then refold to a more stable, linear duplex. The structure of the initial, kissing-loop dimer from HIV-1, solved using 2D NMR, is bent and metastable, its interface being formed not only by standard basepairing between palindromes, but also by a distinctive pattern of interstrand stacking among bases at the stem-loop junctions. This creates mechanical distortions that partially melt both stems, which may facilitate spontaneous refolding of this RNA complex into linear form.
About this Structure
1BAU is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Structure of the dimer initiation complex of HIV-1 genomic RNA., Mujeeb A, Clever JL, Billeci TM, James TL, Parslow TG, Nat Struct Biol. 1998 Jun;5(6):432-6. PMID:9628479
Page seeded by OCA on Thu Feb 21 11:53:18 2008
