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- PDB-4lbo: Crystal structure of Human galectin-3 CRD in complex with a-GM3 -

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Basic information

Entry
Database: PDB / ID: 4lbo
TitleCrystal structure of Human galectin-3 CRD in complex with a-GM3
ComponentsGalectin-3
KeywordsSUGAR BINDING PROTEIN / galectin / carbohydrate-recognition / GM3 / glycosphingolipid / beta sandwich / carbohydrate binding protein
Function / homology
Function and homology information


negative regulation of NK T cell activation / 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 / receptor ligand inhibitor activity / positive regulation of mononuclear cell migration / negative regulation of endocytosis ...negative regulation of NK T cell activation / 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 / receptor ligand inhibitor activity / 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 / signaling receptor inhibitor activity / negative regulation of T cell receptor signaling pathway / protein phosphatase inhibitor activity / positive chemotaxis / positive regulation of calcium ion import / chemoattractant activity / macrophage chemotaxis / monocyte chemotaxis / regulation of T cell proliferation / Advanced glycosylation endproduct receptor signaling / immunological synapse / ficolin-1-rich granule membrane / laminin binding / neutrophil chemotaxis / epithelial cell differentiation / RNA splicing / secretory granule membrane / negative regulation of extrinsic apoptotic signaling pathway / positive regulation of protein localization to plasma membrane / spliceosomal complex / positive regulation of protein-containing complex assembly / molecular condensate scaffold activity / mRNA processing / : / carbohydrate binding / protein phosphatase binding / mitochondrial inner membrane / innate immune response / Neutrophil degranulation / cell surface / extracellular space / RNA binding / extracellular exosome / extracellular region / nucleoplasm / nucleus / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Galectin-like / Galactoside-binding lectin / Galectin / Galectin, carbohydrate recognition domain / Galactoside-binding lectin / Galactoside-binding lectin (galectin) domain profile. / Jelly Rolls - #200 / Concanavalin A-like lectin/glucanase domain superfamily / Jelly Rolls / Sandwich / Mainly Beta
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.65 Å
AuthorsCollins, P.M. / Blanchard, H.
CitationJournal: J.Mol.Biol. / Year: 2014
Title: Galectin-3 interactions with glycosphingolipids.
Authors: Collins, P.M. / Bum-Erdene, K. / Yu, X. / Blanchard, H.
History
DepositionJun 20, 2013Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 22, 2014Provider: repository / Type: Initial release
Revision 1.1Mar 26, 2014Group: Database references
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_validate_close_contact / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_1 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Sep 20, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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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)16,4415
Polymers15,7011
Non-polymers7404
Water2,126118
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)36.992, 58.277, 63.810
Angle α, β, γ (deg.)90.000, 90.000, 90.000
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 / Fragment: unp residues 113-250
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: LGALS3, MAC2 / Plasmid: pET3a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P17931
#2: Polysaccharide N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose


Type: oligosaccharide / Mass: 633.552 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DNeup5Aca2-3DGalpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,3,2/[a2122h-1b_1-5][a2112h-1b_1-5][Aad21122h-2a_2-6_5*NCC/3=O]/1-2-3/a4-b1_b3-c2WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Galp]{[(3+2)][a-D-Neup5Ac]{}}}LINUCSPDB-CARE
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Cl
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 118 / Source method: isolated from a natural source / Formula: H2O

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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: 2.19 Å3/Da / Density % sol: 43.84 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 31% PEG 6000, 100MM MGCL2, 8MM BETA MERCEPTOETHANOL, 100MM TRIS HCL, pH 7.0, vapor diffusion, hanging drop, temperature 293K

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: ROTATING ANODE / Type: MACSCIENCE / Wavelength: 1.54184 Å
DetectorType: BRUKER SMART 6000 / Detector: CCD / Date: Jun 22, 2008
RadiationMonochromator: OSMIC MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54184 Å / Relative weight: 1
ReflectionResolution: 1.649→43.032 Å / Num. all: 16331 / Num. obs: 16331 / % possible obs: 94.6 % / Redundancy: 6.7 % / Rsym value: 0.042 / Net I/σ(I): 21.6
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsMean I/σ(I) obsNum. measured allNum. unique allRsym value% possible all
1.65-1.741.70.2133.4281416650.21368.3
1.74-1.842.40.2353526122230.23594.3
1.84-1.973.40.1454.8739821790.14599.8
1.97-2.134.20.0957.5856320630.095100
2.13-2.335.80.0838.41119419200.083100
2.33-2.6110.20.0749.41755917270.074100
2.61-3.0111.40.05312.81755715410.053100
3.01-3.6912.70.03816.81698513370.038100
3.69-5.2213.50.03118.71406910430.031100
5.22-43.03212.30.02815.777946330.02899.8

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Processing

Software
NameVersionClassificationNB
SAINTdata scaling
SCALA3.3.20data scaling
REFMACrefinement
PDB_EXTRACT3.11data extraction
PROTEUM PLUSdata collection
SAINTdata reduction
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1A3K

1a3k


Resolution: 1.65→43.03 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.948 / WRfactor Rfree: 0.1828 / WRfactor Rwork: 0.1714 / Occupancy max: 1 / Occupancy min: 0.3 / FOM work R set: 0.8854 / SU B: 3.532 / SU ML: 0.059 / SU R Cruickshank DPI: 0.1089 / SU Rfree: 0.0985 / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.109 / ESU R Free: 0.099 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.1932 816 5 %RANDOM
Rwork0.1713 ---
obs0.1724 16265 94.39 %-
Solvent computationSolvent model: BABINET MODEL
Displacement parametersBiso max: 133.69 Å2 / Biso mean: 21.5157 Å2 / Biso min: 8.21 Å2
Baniso -1Baniso -2Baniso -3
1-0.54 Å20 Å20 Å2
2---0.14 Å20 Å2
3----0.4 Å2
Refinement stepCycle: LAST / Resolution: 1.65→43.03 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1108 0 46 118 1272
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0050.0191293
X-RAY DIFFRACTIONr_bond_other_d0.0010.021240
X-RAY DIFFRACTIONr_angle_refined_deg1.251.9861774
X-RAY DIFFRACTIONr_angle_other_deg0.66232851
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.2945160
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.89923.8163
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.89615216
X-RAY DIFFRACTIONr_dihedral_angle_4_deg11.0661511
X-RAY DIFFRACTIONr_chiral_restr0.0780.2199
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.0211502
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02317
LS refinement shellResolution: 1.649→1.692 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.406 36 -
Rwork0.357 607 -
all-643 -
obs--51.44 %
Refinement TLS params.Method: refined / Origin x: 12.7804 Å / Origin y: 0.9208 Å / Origin z: 6.805 Å
111213212223313233
T0.0106 Å20 Å2-0.0062 Å2-0.0165 Å20.0084 Å2--0.0122 Å2
L0.584 °20.1589 °2-0.2069 °2-0.9915 °2-0.3982 °2--1.355 °2
S0.0376 Å °-0.0076 Å °-0.0418 Å °0.0205 Å °-0.0148 Å °0.0184 Å °0.0672 Å °0.032 Å °-0.0229 Å °

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