Chapter title |
Expression, Purification, and Assembly of Archaellum Subcomplexes of Sulfolobus acidocaldarius
|
---|---|
Chapter number | 19 |
Book title |
Protein Complex Assembly
|
Published in |
Methods in molecular biology, January 2018
|
DOI | 10.1007/978-1-4939-7759-8_19 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7758-1, 978-1-4939-7759-8
|
Authors |
Paushali Chaudhury, Patrick Tripp, Sonja-Verena Albers |
Abstract |
The archaellum assembly machinery and its filament consist of seven proteins in the crenarchaeon Sulfolobus acidocaldarius. We have so far expressed, purified, and biochemically characterized four of these archaellum subunits, namely, FlaX, FlaH, FlaI, and FlaF. FlaX, FlaH, and FlaI tightly interact and form the archaellum motor complex important for archaellum assembly and rotation. We have previously shown that FlaH forms an inner ring within a very stable FlaX ring, and therefore FlaX is believed to provide the scaffold for the assembly of the archaellum motor complex. Here we describe how to express and purify FlaX and FlaH and how the double ring structure both form can be obtained. |
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