5b4f: Difference between revisions

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'''Unreleased structure'''


The entry 5b4f is ON HOLD  until Paper Publication
==Sulfur Transferase TtuA in complex with iron sulfur cluster==
 
<StructureSection load='5b4f' size='340' side='right'caption='[[5b4f]], [[Resolution|resolution]] 2.75&Aring;' scene=''>
Authors: Chen, M., Narai, S., Tanaka, Y., Yao, M.
== Structural highlights ==
 
<table><tr><td colspan='2'>[[5b4f]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB27 Thermus thermophilus HB27]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5B4F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5B4F FirstGlance]. <br>
Description: ENZYME IN COMPLEX WITH COFACTOR
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.75&#8491;</td></tr>
[[Category: Unreleased Structures]]
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
[[Category: Chen, M]]
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5b4f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5b4f OCA], [https://pdbe.org/5b4f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5b4f RCSB], [https://www.ebi.ac.uk/pdbsum/5b4f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5b4f ProSAT]</span></td></tr>
[[Category: Yao, M]]
</table>
[[Category: Tanaka, Y]]
== Function ==
[[Category: Narai, S]]
[https://www.uniprot.org/uniprot/TTUA_THET2 TTUA_THET2] Catalyzes the ATP-dependent 2-thiolation of 5-methyluridine residue at position 54 in the T loop of tRNAs, leading to 5-methyl-2-thiouridine (m(5)s(2)U or s(2)T) (PubMed:16547008, PubMed:28439027). This modification allows thermal stabilization of tRNAs in thermophilic microorganisms, and is required for cell growth at high temperatures (PubMed:16547008). TtuA transfers the S atom from the thiocarboxylated C-terminus of TtuB to tRNA (PubMed:28439027).<ref>PMID:16547008</ref> <ref>PMID:28439027</ref>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermus thermophilus HB27]]
[[Category: Chen M]]
[[Category: Narai S]]
[[Category: Tanaka Y]]
[[Category: Yao M]]

Latest revision as of 12:07, 20 March 2024

Sulfur Transferase TtuA in complex with iron sulfur clusterSulfur Transferase TtuA in complex with iron sulfur cluster

Structural highlights

5b4f is a 1 chain structure with sequence from Thermus thermophilus HB27. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.75Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

TTUA_THET2 Catalyzes the ATP-dependent 2-thiolation of 5-methyluridine residue at position 54 in the T loop of tRNAs, leading to 5-methyl-2-thiouridine (m(5)s(2)U or s(2)T) (PubMed:16547008, PubMed:28439027). This modification allows thermal stabilization of tRNAs in thermophilic microorganisms, and is required for cell growth at high temperatures (PubMed:16547008). TtuA transfers the S atom from the thiocarboxylated C-terminus of TtuB to tRNA (PubMed:28439027).[1] [2]

References

  1. Shigi N, Sakaguchi Y, Suzuki T, Watanabe K. Identification of two tRNA thiolation genes required for cell growth at extremely high temperatures. J Biol Chem. 2006 May 19;281(20):14296-306. doi: 10.1074/jbc.M511675200. Epub, 2006 Mar 17. PMID:16547008 doi:http://dx.doi.org/10.1074/jbc.M511675200
  2. Chen M, Asai SI, Narai S, Nambu S, Omura N, Sakaguchi Y, Suzuki T, Ikeda-Saito M, Watanabe K, Yao M, Shigi N, Tanaka Y. Biochemical and structural characterization of oxygen-sensitive 2-thiouridine synthesis catalyzed by an iron-sulfur protein TtuA. Proc Natl Acad Sci U S A. 2017 Apr 24. pii: 201615585. doi:, 10.1073/pnas.1615585114. PMID:28439027 doi:http://dx.doi.org/10.1073/pnas.1615585114

5b4f, resolution 2.75Å

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