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Bacterial pseudokin...
Bacterial pseudokinase catalyzes protein polyglutamylation to inhibit the SidE-family ubiquitin ligases
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- Black, Miles H. (författare)
- University of Texas Southwestern Medical Center
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- Osinski, Adam (författare)
- University of Texas Southwestern Medical Center
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- Gradowski, Marcin (författare)
- Warsaw University of Life Sciences
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- Servage, Kelly A. (författare)
- University of Texas Southwestern Medical Center,Howard Hughes Medical Institute
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- Pawłowski, Krzysztof (författare)
- Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups,Warsaw University of Life Sciences
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- Tomchick, Diana R. (författare)
- University of Texas Southwestern Medical Center
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- Tagliabracci, Vincent S. (författare)
- University of Texas Southwestern Medical Center
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2019
- 2019
- Engelska 6 s.
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Ingår i: Science (New York, N.Y.). - : American Association for the Advancement of Science (AAAS). - 1095-9203 .- 0036-8075. ; 364:6442, s. 787-792
- Relaterad länk:
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http://dx.doi.org/10...
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https://europepmc.or...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Enzymes with a protein kinase fold transfer phosphate from adenosine 5'-triphosphate (ATP) to substrates in a process known as phosphorylation. Here, we show that the Legionella meta-effector SidJ adopts a protein kinase fold, yet unexpectedly catalyzes protein polyglutamylation. SidJ is activated by host-cell calmodulin to polyglutamylate the SidE family of ubiquitin (Ub) ligases. Crystal structures of the SidJ-calmodulin complex reveal a protein kinase fold that catalyzes ATP-dependent isopeptide bond formation between the amino group of free glutamate and the γ-carboxyl group of an active-site glutamate in SidE. We show that SidJ polyglutamylation of SidE, and the consequent inactivation of Ub ligase activity, is required for successful Legionella replication in a viable eukaryotic host cell.
Ämnesord
- NATURVETENSKAP -- Biologi -- Strukturbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Structural Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Medical Biotechnology (hsv//eng)
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