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  Crystal structure of the Thermoplasma acidophilum protein Ta1207

Pathare, G. R., Nagy, I., Hubert, A., Thomas, D. R., & Bracher, A. (2017). Crystal structure of the Thermoplasma acidophilum protein Ta1207. Acta Crystallographica Section F: Structural Biology Communications, 73, 328-335. doi:10.1107/S2053230X17007087.

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Pathare, Ganesh Ramnath1, Autor           
Nagy, Istvan1, Autor           
Hubert, Agnes1, Autor           
Thomas, Dennis R.1, Autor           
Bracher, Andreas2, Autor           
Affiliations:
1Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565142              
2Hartl, Franz-Ulrich / Cellular Biochemistry, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565152              

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Schlagwörter: PROTEOMICS; REFINEMENT; SCATTERING; COMPLEXES; GENOMICS; SEQUENCEBiochemistry & Molecular Biology; Biophysics; Crystallography; pentamers; archaeon; thermostability; nanotechnology; Thermoplasma acidophilum; Ta1207;
 Zusammenfassung: The crystal structure of the Ta1207 protein from Thermoplasma acidophilum is reported. Ta1207 was identified in a screen for high-molecular-weight protein complexes in T. acidophilum. In solution, Ta1207 forms homopentamers of 188 kDa. The crystal structure of recombinant Ta1207 solved by Se-MAD at 2.4 angstrom resolution revealed a complex with fivefold symmetry. In the crystal lattice, calcium ions induce the formation of a nanocage from two pentamers. The Ta1207 protomers comprise two domains with the same novel alpha/beta topology. A deep pocket with a binding site for a negatively charged group suggests that Ta1207 functions as an intracellular receptor for an unknown ligand. Homologues of Ta1207 occur only in Thermoplasmatales and its function might be related to the extreme lifestyle of these archaea. The thermostable Ta1207 complex might provide a useful fivefold-symmetric scaffold for future nanotechnological applications.

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Sprache(n): eng - English
 Datum: 2017-05-252017
 Publikationsstatus: Erschienen
 Seiten: 8
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000402553700004
DOI: 10.1107/S2053230X17007087
 Art des Abschluß: -

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Titel: Acta Crystallographica Section F: Structural Biology Communications
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Blackwell Publishing Limited
Seiten: - Band / Heft: 73 Artikelnummer: - Start- / Endseite: 328 - 335 Identifikator: ISSN: 1744-3091
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000017210_1