Prosthecobacter: Difference between revisions
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'''Prosthecobacter''' have a distinctive characteristic; the presence of [[tubulin]]-like genes. |
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A distinctive characteristic of Prosthecobacter is the presence of tubulin-like genes. Tubulins, which are compoents of the microtubule cytoskeleten, have never been observed in bacteria. Most bacteria have a homologous structure, FtsZ. Prosthecobacter are the exception to this, containing genes that have higher sequence-homology to eukaryotic tubulin than FtsZ. These genes are called bacterial tubulin a (BtubA) and bacterial tubulin b (BtubB). The properties are not exactly same. For example, dimerization is weak and chaperone folding is independent. However, surface loops and protofilaments are extremely similar. It has been hypothesized that BtubA and BtubB were transferred to Prosthecobacter from eukaryotic cells through horizontal gene transfer. |
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Tubulins, which are compoents of the microtubule, have never been observed in bacteria before. |
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Most bacteria have a homologous structure, FtsZ. Prosthecobacter are the exception to this, containing genes that have higher sequence-homology to eukaryotic tubulin than FtsZ. |
|||
These genes are called bacterial tubulin a (BtubA) and bacterial tubulin b (BtubB). The properties are not exactly same. For example, dimerization is weak and chaperone folding is independent. However, surface loops and protofilaments are extremely similar. |
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It has been hypothesized that BtubA and BtubB were transferred to Prosthecobacter from eukaryotic cells through horizontal gene transfer. |
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Revision as of 13:52, 1 May 2018
Prosthecobacter have a distinctive characteristic; the presence of tubulin-like genes. Tubulins, which are compoents of the microtubule, have never been observed in bacteria before.
Most bacteria have a homologous structure, FtsZ. Prosthecobacter are the exception to this, containing genes that have higher sequence-homology to eukaryotic tubulin than FtsZ.
These genes are called bacterial tubulin a (BtubA) and bacterial tubulin b (BtubB). The properties are not exactly same. For example, dimerization is weak and chaperone folding is independent. However, surface loops and protofilaments are extremely similar.
It has been hypothesized that BtubA and BtubB were transferred to Prosthecobacter from eukaryotic cells through horizontal gene transfer.