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- PDB-8ppn: Galectin-3 carbohydrate recognition domain in complex with thiodi... -

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Basic information

Entry
Database: PDB / ID: 8ppn
TitleGalectin-3 carbohydrate recognition domain in complex with thiodigalactoside at 1.8 resolution
ComponentsGalectin-3
KeywordsSUGAR BINDING PROTEIN
Function / homology
Function and homology information


: / negative regulation of immunological synapse formation / disaccharide binding / negative regulation of T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / RUNX2 regulates genes involved in differentiation of myeloid cells / regulation of T cell apoptotic process / mononuclear cell migration / positive regulation of mononuclear cell migration / negative regulation of endocytosis / IgE binding ...: / negative regulation of immunological synapse formation / disaccharide binding / negative regulation of T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / RUNX2 regulates genes involved in differentiation of myeloid cells / regulation of T cell apoptotic process / mononuclear cell migration / positive regulation of mononuclear cell migration / negative regulation of endocytosis / IgE binding / eosinophil chemotaxis / regulation of extrinsic apoptotic signaling pathway via death domain receptors / RUNX1 regulates transcription of genes involved in differentiation of myeloid cells / protein phosphatase inhibitor activity / negative regulation of T cell receptor signaling pathway / regulation of T cell proliferation / positive chemotaxis / macrophage chemotaxis / positive regulation of calcium ion import / chemoattractant activity / monocyte chemotaxis / Advanced glycosylation endproduct receptor signaling / ficolin-1-rich granule membrane / immunological synapse / laminin binding / epithelial cell differentiation / neutrophil chemotaxis / RNA splicing / secretory granule membrane / negative regulation of extrinsic apoptotic signaling pathway / positive regulation of protein localization to plasma membrane / molecular condensate scaffold activity / spliceosomal complex / positive regulation of protein-containing complex assembly / mRNA processing / carbohydrate binding / protein phosphatase binding / collagen-containing extracellular matrix / mitochondrial inner membrane / innate immune response / Neutrophil degranulation / cell surface / RNA binding / extracellular space / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Galectin-like / Galactoside-binding lectin / Galectin / Galectin, carbohydrate recognition domain / Galactoside-binding lectin / Galactoside-binding lectin (galectin) domain profile. / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
thiodigalactoside / Galectin-3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsTsagkarakou, A.S. / Leonidas, D.D.
Funding support Greece, 1items
OrganizationGrant numberCountry
Not funded Greece
CitationJournal: J.Med.Chem. / Year: 2023
Title: Strong Binding of C -Glycosylic1,2-Thiodisaccharides to Galectin-3─Enthalpy-Driven Affinity Enhancement by Water-Mediated Hydrogen Bonds.
Authors: Lazar, L. / Tsagkarakou, A.S. / Stravodimos, G. / Kontopidis, G. / Leffler, H. / Nilsson, U.J. / Somsak, L. / Leonidas, D.D.
History
DepositionJul 7, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 13, 2023Provider: repository / Type: Initial release
Revision 1.1Sep 20, 2023Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Galectin-3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)16,1874
Polymers15,7011
Non-polymers4863
Water3,945219
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: equilibrium centrifugation
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)35.969, 57.350, 62.225
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Galectin-3 / Gal-3 / 35 kDa lectin / Carbohydrate-binding protein 35 / CBP 35 / Galactose-specific lectin 3 / ...Gal-3 / 35 kDa lectin / Carbohydrate-binding protein 35 / CBP 35 / Galactose-specific lectin 3 / Galactoside-binding protein / GALBP / IgE-binding protein / L-31 / Laminin-binding protein / Lectin L-29 / Mac-2 antigen


Mass: 15701.049 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: LGALS3, MAC2 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P17931
#2: Polysaccharide 1-thio-beta-D-galactopyranose-(1-1)-beta-D-galactopyranose


Type: oligosaccharide, Oligosaccharide / Class: Substrate analog / Mass: 358.362 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide with S-glycosidic bond between monosaccharides, and with reducing-end-to-reducing-end glycosidic bond
References: thiodigalactoside
DescriptorTypeProgram
WURCS=2.0/1,2,1/[a2112h-1b_1-5]/1-1/a1-b1*S*WURCSPDB2Glycan 1.1.0
[][b-D-Galp1SH]{[(1+S)][b-D-Galp]{}}LINUCSPDB-CARE
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 219 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.04 Å3/Da / Density % sol: 39.82 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 8.5
Details: 0.1 M Tris-HCl, pH 8.5, 0.2 M MgCl2, 35% w/v PEG8000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: PETRA III, EMBL c/o DESY / Beamline: P13 (MX1) / Wavelength: 0.9763 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jun 26, 2023
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9763 Å / Relative weight: 1
ReflectionResolution: 1.8→42.17 Å / Num. obs: 11982 / % possible obs: 96.7 % / Redundancy: 5 % / CC1/2: 0.967 / Net I/σ(I): 17.2
Reflection shellResolution: 1.8→1.84 Å / Num. unique obs: 691 / CC1/2: 0.959

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Processing

Software
NameVersionClassification
REFMAC5.8.0267refinement
XDSdata reduction
Aimlessdata scaling
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.8→42.17 Å / Cor.coef. Fo:Fc: 0.865 / Cor.coef. Fo:Fc free: 0.76 / SU B: 5.196 / SU ML: 0.164 / Cross valid method: THROUGHOUT / ESU R: 0.253 / ESU R Free: 0.231 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
RfactorNum. reflection% reflectionSelection details
Rfree0.34611 648 5.6 %RANDOM
Rwork0.26712 ---
obs0.27149 11009 93.7 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 7.814 Å2
Baniso -1Baniso -2Baniso -3
1--0 Å20 Å2-0 Å2
2---0.9 Å20 Å2
3---0.9 Å2
Refinement stepCycle: 1 / Resolution: 1.8→42.17 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1108 0 30 219 1357
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0121204
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.6511.671643
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg8.0585149
X-RAY DIFFRACTIONr_dihedral_angle_2_deg29.56521.54971
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.9115203
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.6691511
X-RAY DIFFRACTIONr_chiral_restr0.1070.2161
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.02921
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.5320.611566
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it0.8660.911710
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it0.6390.67638
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined4.0689.5361847
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.8→1.847 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.357 42 -
Rwork0.292 800 -
obs--95.79 %

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