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- PDB-8e6h: X-ray structure of the Deinococcus radiodurans Nramp/MntH divalen... -

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Basic information

Entry
Database: PDB / ID: 8e6h
TitleX-ray structure of the Deinococcus radiodurans Nramp/MntH divalent transition metal transporter A47W mutant in an occluded, manganese-bound state
ComponentsDivalent metal cation transporter MntH
KeywordsMETAL TRANSPORT / Membrane protein / divalent transition metal importer / LeuT fold / NRAMP family
Function / homology
Function and homology information


manganese ion transport / cadmium ion transmembrane transporter activity / manganese ion transmembrane transporter activity / iron ion transmembrane transport / symporter activity / metal ion binding / plasma membrane
Similarity search - Function
NRAMP family / Natural resistance-associated macrophage protein-like
Similarity search - Domain/homology
: / (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / DI(HYDROXYETHYL)ETHER / Divalent metal cation transporter MntH
Similarity search - Component
Biological speciesDeinococcus radiodurans (radioresistant)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.39 Å
AuthorsRay, S. / Gaudet, R.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM120996 United States
CitationJournal: Elife / Year: 2023
Title: High-resolution structures with bound Mn 2+ and Cd 2+ map the metal import pathway in an Nramp transporter.
Authors: Ray, S. / Berry, S.P. / Wilson, E.A. / Zhang, C.H. / Shekhar, M. / Singharoy, A. / Gaudet, R.
History
DepositionAug 22, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 3, 2023Provider: repository / Type: Initial release
Revision 1.1Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.2Mar 5, 2025Group: Data collection / Structure summary / Category: diffrn_detector / pdbx_entry_details
Item: _diffrn_detector.type / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Divalent metal cation transporter MntH
hetero molecules


Theoretical massNumber of molelcules
Total (without water)57,05931
Polymers48,0391
Non-polymers9,02130
Water1,35175
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: isothermal titration calorimetry, ITC with Mn shows micromolar level binding affinity
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area920 Å2
ΔGint-5 kcal/mol
Surface area19290 Å2
MethodPISA
Unit cell
Length a, b, c (Å)58.980, 70.929, 98.571
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP22121
Components on special symmetry positions
IDModelComponents
11A-664-

HOH

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Divalent metal cation transporter MntH


Mass: 48038.520 Da / Num. of mol.: 1 / Mutation: A47W
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Deinococcus radiodurans (radioresistant)
Gene: mntH, DR_1709 / Production host: Escherichia coli (E. coli) / References: UniProt: Q9RTP8

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Non-polymers , 5 types, 105 molecules

#2: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#4: Chemical...
ChemComp-OLC / (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / 1-Oleoyl-R-glycerol


Mass: 356.540 Da / Num. of mol.: 24 / Source method: obtained synthetically / Formula: C21H40O4
#5: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C4H10O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 75 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.31 Å3/Da / Density % sol: 42.55 % / Description: 20 micron in size
Crystal growTemperature: 298 K / Method: lipidic cubic phase / pH: 7.2
Details: 20% PEG550 MME, 0.1 M HEPES, pH 7.2, 0.25 M sodium chloride, 10 mM manganese chloride

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 24-ID-C / Wavelength: 0.984 Å
DetectorType: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Jun 13, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.984 Å / Relative weight: 1
ReflectionResolution: 2.39→45.35 Å / Num. obs: 16773 / % possible obs: 99 % / Redundancy: 3.6 % / Biso Wilson estimate: 40.33 Å2 / CC1/2: 0.994 / Rmerge(I) obs: 0.163 / Rpim(I) all: 0.097 / Rrim(I) all: 0.191 / Net I/σ(I): 7.1 / Num. measured all: 60857 / Scaling rejects: 7
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Rpim(I) allRrim(I) allNet I/σ(I) obs% possible all
2.39-2.483.81.396658417450.3990.8111.621199.7
8.94-45.353.20.02311323560.9990.0150.02831.794.7

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Processing

Software
NameVersionClassification
PHENIX1.20.1_4487refinement
Aimless0.7.4data scaling
PDB_EXTRACT3.27data extraction
XDSdata reduction
PHASERphasing
Cootmodel building
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 8E5S

8e5s


Resolution: 2.39→45.35 Å / SU ML: 0.35 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 26.09 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2464 1673 10 %
Rwork0.2059 15061 -
obs0.2101 16734 98.6 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 153.04 Å2 / Biso mean: 50.379 Å2 / Biso min: 22.19 Å2
Refinement stepCycle: final / Resolution: 2.39→45.35 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2939 0 469 75 3483
Biso mean--70.15 47.56 -
Num. residues----392
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 12

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.39-2.460.36261390.29961252139199
2.46-2.540.30591370.266612291366100
2.54-2.630.33621380.255312471385100
2.63-2.740.31411390.24881248138799
2.74-2.860.32021360.23821223135998
2.86-3.010.30351400.226212531393100
3.01-3.20.27491400.20831265140599
3.2-3.450.24611380.20421252139099
3.45-3.790.23481390.18111240137998
3.79-4.340.21441410.17331266140799
4.34-5.470.20781400.18441263140396
5.47-45.350.19731460.20071323146997
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
13.88820.2826-0.28862.7211-0.74982.05060.12970.1781-0.0881-0.3378-0.2863-0.14020.0021-0.2285-0.00080.39240.02960.04340.23660.04380.2989-14.593-22.235530.4554
20.6118-0.15860.17071.2124-0.76551.5779-0.06840.07260.048-0.15990.0019-0.07450.08360.07250.02020.3134-0.01980.00260.2392-0.00780.3217-12.8963-18.900221.2655
30.8113-0.16160.37831.0856-0.58411.6553-0.0136-0.0085-0.0624-0.07340.0644-0.0190.0266-0.05170.0050.24940.01540.0150.2305-0.00790.2741-15.3789-17.252723.1193
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1chain 'A' and (resid 45 through 74 )A45 - 74
2X-RAY DIFFRACTION2chain 'A' and (resid 75 through 249 )A75 - 249
3X-RAY DIFFRACTION3chain 'A' and (resid 250 through 436 )A250 - 436

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