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Structure of bacterial tubulin BtubA/B: Evidence for horizontal gene transfer

Open access
Schlieper, Daniel, Oliva, María A., Andreu, José M., Löwe, Jan·2005·Proceedings of the National Academy of Sciences

Abstract

αβ-Tubulin heterodimers, from which the microtubules of the cytoskeleton are built, have a complex chaperone-dependent folding pathway. They are thought to be unique to eukaryotes, whereas the homologue FtsZ can be found in bacteria. The exceptions are BtubA and BtubB from Prosthecobacter , which have higher sequence homology to eukaryotic tubulin than to FtsZ. Here we show that some of their properties are different from tubulin, such as weak dimerization and chaperone-independent folding. However, their structure is strikingly similar to tubulin including surface loops, and BtubA/B form tubulin-like protofilaments. Presumably, BtubA/B were transferred from a eukaryotic cell by horizontal gene transfer because their high degree of similarity to eukaryotic genes is unique within the Prosthecobacter genome.

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Metadata

Authors
Schlieper, D., Oliva, M. A., Andreu, J. M., & Löwe, J.
Venue
Proceedings of the National Academy of Sciences
Published
2005-06-20
Volume
102
Issue
26
Pages
9170-9175
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2082487283
Cited by
167
References
1
FWCI
5.81
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Structure of bacterial tubulin BtubA/B: Evidence for horizontal gene transfer. https://app.cochat.ai/papers/10.1073/pnas.0502859102
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Schlieper, D., Oliva, M. A., Andreu, J. M., & Löwe, J. (2005). Structure of bacterial tubulin BtubA/B: Evidence for horizontal gene transfer. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0502859102

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