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Yorodumi- PDB-8ja8: Crystal structure of Mycobacterium tuberculosis LpqY with trehalo... -
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Basic information
| Entry | Database: PDB / ID: 8ja8 | |||||||||
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| Title | Crystal structure of Mycobacterium tuberculosis LpqY with trehalose bound in a closed liganded form | |||||||||
Components | Trehalose-binding lipoprotein LpqY | |||||||||
Keywords | SUGAR BINDING PROTEIN | |||||||||
| Function / homology | Function and homology informationtrehalose transmembrane transporter activity / trehalose transport / biological process involved in interaction with host / ATP-binding cassette (ABC) transporter complex / periplasmic space / plasma membrane Similarity search - Function | |||||||||
| Biological species | Mycobacterium tuberculosis H37Rv (bacteria) | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.6 Å | |||||||||
Authors | Zhang, B. / Liang, J. / Rao, Z. | |||||||||
| Funding support | China, 2items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2023Title: Molecular recognition of trehalose and trehalose analogues by LpqY-SugABC. Authors: Jingxi Liang / Fengjiang Liu / Peng Xu / Wei Shangguan / Tianyu Hu / Shule Wang / Xiaolin Yang / Zhiqi Xiong / Xiuna Yang / Luke W Guddat / Biao Yu / Zihe Rao / Bing Zhang / ![]() Abstract: Trehalose plays a crucial role in the survival and virulence of the deadly human pathogen (). The type I ATP-binding cassette (ABC) transporter LpqY-SugABC is the sole pathway for trehalose to enter ...Trehalose plays a crucial role in the survival and virulence of the deadly human pathogen (). The type I ATP-binding cassette (ABC) transporter LpqY-SugABC is the sole pathway for trehalose to enter . The substrate-binding protein, LpqY, which forms a stable complex with the translocator SugABC, recognizes and captures trehalose and its analogues in the periplasmic space, but the precise molecular mechanism for this process is still not well understood. This study reports a 3.02-Å cryoelectron microscopy structure of trehalose-bound LpqY-SugABC in the pretranslocation state, a crystal structure of LpqY in a closed form with trehalose bound and five crystal structures of LpqY in complex with different trehalose analogues. These structures, accompanied by substrate-stimulated ATPase activity data, reveal how LpqY recognizes and binds trehalose and its analogues, and highlight the flexibility in the substrate binding pocket of LpqY. These data provide critical insights into the design of trehalose analogues that could serve as potential molecular probe tools or as anti-TB drugs. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ja8.cif.gz | 109.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ja8.ent.gz | 78.1 KB | Display | PDB format |
| PDBx/mmJSON format | 8ja8.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8ja8_validation.pdf.gz | 867.9 KB | Display | wwPDB validaton report |
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| Full document | 8ja8_full_validation.pdf.gz | 868.5 KB | Display | |
| Data in XML | 8ja8_validation.xml.gz | 21.1 KB | Display | |
| Data in CIF | 8ja8_validation.cif.gz | 32.3 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ja/8ja8 ftp://data.pdbj.org/pub/pdb/validation_reports/ja/8ja8 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8ja7C ![]() 8ja9C ![]() 8jaaC ![]() 8jabC ![]() 8jacC ![]() 8jadC C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Assembly
| Deposited unit | ![]()
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| Unit cell |
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Components
| #1: Protein | Mass: 49803.074 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mycobacterium tuberculosis H37Rv (bacteria)Strain: H37Rv / Gene: lpqY Production host: ![]() References: UniProt: P9WGU9 | ||||||
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| #2: Polysaccharide | alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose | ||||||
| #3: Chemical | ChemComp-SO4 / #4: Water | ChemComp-HOH / | Has ligand of interest | Y | Has protein modification | Y | |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.65 Å3/Da / Density % sol: 53.5 % |
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| Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7 Details: 50 mM Magnesium sulfate hydrate, 50 mM HEPES sodium pH 7.0 and 1.6 M Lithium sulfate monohydrate |
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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| Diffraction source | Source: SYNCHROTRON / Site: SPring-8 / Beamline: BL41XU / Wavelength: 1 Å |
| Detector | Type: CS-PAD XPP / Detector: PIXEL / Date: Dec 17, 2018 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
| Reflection | Resolution: 1.5→50 Å / Num. obs: 70508 / % possible obs: 99.8 % / Redundancy: 6.9 % / CC1/2: 0.999 / Rmerge(I) obs: 0.07 / Net I/σ(I): 12.13 |
| Reflection shell | Resolution: 1.5→1.54 Å / Num. unique obs: 6972 / CC1/2: 0.835 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.6→45.2 Å / Cross valid method: THROUGHOUTStereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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| Displacement parameters | Biso mean: 32.09 Å2 | ||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.6→45.2 Å
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About Yorodumi



Mycobacterium tuberculosis H37Rv (bacteria)
X-RAY DIFFRACTION
China, 2items
Citation







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