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De Novo Protein Structure Determination from Near-atomic-resolution Cryo-EM Maps

Overview
Journal Nat Methods
Date 2015 Feb 24
PMID 25707029
Citations 109
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Abstract

We present a de novo model-building approach that combines predicted backbone conformations with side-chain fit to density to accurately assign sequence into density maps. This method yielded accurate models for six of nine experimental maps at 3.3- to 4.8-Å resolution and produced a nearly complete model for an unsolved map containing a 660-residue heterodimeric protein. This method should enable rapid and reliable protein structure determination from near-atomic-resolution cryo-electron microscopy (cryo-EM) maps.

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