8vxb: Difference between revisions

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'''Unreleased structure'''


The entry 8vxb is ON HOLD  until 2026-02-04
==Structure of ANT(6)-Ib from Campylobacter fetus subsp fetus complexed with hydrated streptomycin==
<StructureSection load='8vxb' size='340' side='right'caption='[[8vxb]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8vxb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Campylobacter_fetus_subsp._fetus Campylobacter fetus subsp. fetus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8VXB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8VXB FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.85&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5I0:[(2~{S},3~{S},4~{S},5~{R},6~{S})-2-[(2~{R},3~{R},4~{R},5~{S})-2-[(1~{R},2~{S},3~{R},4~{R},5~{S},6~{R})-2,4-bis[[azaniumylidene(azanyl)methyl]amino]-3,5,6-tris(oxidanyl)cyclohexyl]oxy-4-[bis(oxidanyl)methyl]-5-methyl-4-oxidanyl-oxolan-3-yl]oxy-6-(hydroxymethyl)-4,5-bis(oxidanyl)oxan-3-yl]-methyl-azanium'>5I0</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8vxb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8vxb OCA], [https://pdbe.org/8vxb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8vxb RCSB], [https://www.ebi.ac.uk/pdbsum/8vxb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8vxb ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/D8L9Z0_CAMFE D8L9Z0_CAMFE]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Aminoglycoside antibiotics have played a critical role in the treatment of both Gram-negative and Gram-positive bacterial infections. However, antibiotic resistance has severely compromised the efficacy of aminoglycosides. A leading cause of aminoglycoside resistance is mediated by bacterial enzymes that inactivate these drugs via chemical modification. Aminoglycoside nucleotidyltransferase-6 (ANT(6)) enzymes inactivate streptomycin by transferring an adenyl group from ATP to position 6 on the antibiotic. Despite the clinical significance of this activity, ANT(6) enzymes remain relatively uncharacterized. Here, we report the first high resolution x-ray crystallographic structure of ANT(6)-Ib from Campylobacter fetus subsp. fetus bound with streptomycin. Structural modeling and gel filtration chromatography experiments suggest that the enzyme exists as a dimer in which both subunits contribute to the active site. Moreover, superposition of the ANT(6)-Ib structure with the structurally related enzyme lincosamide nucleotidyltransferase B (LinB) permitted the identification of a putative nucleotide binding site. These data also suggest that residues D44 and D46 coordinate essential divalent metal ions and D102 functions as the catalytic base.


Authors: Nalam, P., Cook, P., Smith, B.
Structural and Biochemical Characterization of Aminoglycoside Nucleotidyltransferase(6)-Ib From Campylobacter fetus subsp. fetus.,Nalam P, Cook PD, Smith BA Proteins. 2024 Sep 9. doi: 10.1002/prot.26745. PMID:39246239<ref>PMID:39246239</ref>


Description: Structure of ANT(6)-Ib from Campylobacter fetus subsp fetus complexed with hydrated streptomycin
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Cook, P]]
<div class="pdbe-citations 8vxb" style="background-color:#fffaf0;"></div>
[[Category: Smith, B]]
== References ==
[[Category: Nalam, P]]
<references/>
__TOC__
</StructureSection>
[[Category: Campylobacter fetus subsp. fetus]]
[[Category: Large Structures]]
[[Category: Cook P]]
[[Category: Nalam P]]
[[Category: Smith B]]
Retrieved from "https://proteopedia.org/8vxb"