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- PDB-2du0: Crystal structure of basic winged bean lectin in complex with Alp... -

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Basic information

Entry
Database: PDB / ID: 2du0
TitleCrystal structure of basic winged bean lectin in complex with Alpha-D-galactose
ComponentsBasic agglutinin
KeywordsSUGAR BINDING PROTEIN / LEGUME LECTIN / GLYCOSYLATED PROTEIN / AGGLUTININ
Function / homology
Function and homology information


carbohydrate binding
Similarity search - Function
Legume lectin / Legume lectins beta-chain signature. / Legume lectin domain / Legume lectin domain / Legume lectin, beta chain, Mn/Ca-binding site / : / Jelly Rolls - #200 / Concanavalin A-like lectin/glucanase domain superfamily / Jelly Rolls / Sandwich / Mainly Beta
Similarity search - Domain/homology
alpha-D-galactopyranose / : / Basic agglutinin
Similarity search - Component
Biological speciesPsophocarpus tetragonolobus (winged bean)
MethodX-RAY DIFFRACTION / Resolution: 2.7 Å
AuthorsKulkarni, K.A. / Katiyar, S. / Surolia, A. / Vijayan, M. / Suguna, K.
Citation
Journal: ACTA CRYSTALLOGR.,SECT.D / Year: 2006
Title: Structural basis for the carbohydrate-specificity of basic winged-bean lectin and its differential affinity for Gal and GalNAc
Authors: Kulkarni, K.A. / Katiyar, S. / Surolia, A. / Vijayan, M. / Suguna, K.
#1: Journal: J.Mol.Biol. / Year: 1998
Title: Carbohydrate specificity and quaternary association in basic winged bean lectin: X-ray analysis of the lectin at 2.5 A resolution
Authors: Prabu, M.M. / Sankaranarayanan, R. / Puri, K.D. / Sharma, V. / Surolia, A. / Vijayan, M. / Suguna, K.
#2: Journal: Febs Lett. / Year: 2005
Title: Structural basis for the specificity of basic winged bean lectin for the Tn-antigen: a crystallographic, thermodynamic and modelling study
Authors: Kulkarni, K.A. / Surolia, A. / Vijayan, M. / Suguna, K.
#3: Journal: ACTA CRYSTALLOGR.,SECT.D / Year: 1999
Title: Structure of basic winged-bean lectin and a comparison with its saccharide-bound form
Authors: Manoj, N. / Srinivas, V.R. / Surolia, A. / Vijayan, M. / Suguna, K.
History
DepositionJul 19, 2006Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 7, 2006Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...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_struct_conn_angle / pdbx_struct_special_symmetry / 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_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _pdbx_struct_special_symmetry.label_asym_id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 25, 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
Revision 2.2Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Basic agglutinin
B: Basic agglutinin
C: Basic agglutinin
D: Basic agglutinin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)109,86623
Polymers106,0224
Non-polymers3,84319
Water4,306239
1
A: Basic agglutinin
B: Basic agglutinin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)55,29112
Polymers53,0112
Non-polymers2,28010
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
C: Basic agglutinin
D: Basic agglutinin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,57511
Polymers53,0112
Non-polymers1,5639
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)157.552, 89.957, 73.404
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212
Components on special symmetry positions
IDModelComponents
11D-4409-

HOH

DetailsIt is a homodimer formed by the subunits A&B and C&D.

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Components

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Protein , 1 types, 4 molecules ABCD

#1: Protein
Basic agglutinin / WBA I


Mass: 26505.604 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) Psophocarpus tetragonolobus (winged bean) / References: UniProt: O24313

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Sugars , 4 types, 11 molecules

#2: Polysaccharide alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)]2-acetamido-2-deoxy-beta- ...alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 570.542 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-3[DGlcpNAcb1-4]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2-1/a3-b1_a4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#3: Polysaccharide alpha-L-fucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 367.349 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-3DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2/a3-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#4: Sugar
ChemComp-GLA / alpha-D-galactopyranose / alpha-D-galactose / D-galactose / galactose / ALPHA D-GALACTOSE


Type: D-saccharide, alpha linking / Mass: 180.156 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DGalpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-D-galactopyranoseCOMMON NAMEGMML 1.0
a-D-GalpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GalSNFG CARBOHYDRATE SYMBOLGMML 1.0
#5: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 3 types, 247 molecules

#6: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ca
#7: Chemical
ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mn
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 239 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY

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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: 2.45 Å3/Da / Density % sol: 49.83 %
Crystal growTemperature: 300 K / Method: vapor diffusion, hanging drop / pH: 7.4
Details: 20% PEG 4000, 10% Iso-propenol, 0.02M PBS, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 300K

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE
RadiationMonochromator: Osmic Mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.7→30 Å / Num. obs: 29164 / % possible obs: 99.2 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Biso Wilson estimate: 52.6 Å2 / Rmerge(I) obs: 0.114 / Net I/σ(I): 16.8
Reflection shellResolution: 2.7→2.8 Å / Rmerge(I) obs: 0.316 / Mean I/σ(I) obs: 4.2 / Num. unique all: 2865 / % possible all: 99.3

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Processing

SoftwareName: CNS / Version: 1.1 / Classification: refinement
RefinementStarting model: PDB entry 1wbl

1wbl


Resolution: 2.7→30 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 2172589.67 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.245 1341 4.6 %RANDOM
Rwork0.194 ---
obs0.194 29142 99.1 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 36.4292 Å2 / ksol: 0.288649 e/Å3
Displacement parametersBiso mean: 38.8 Å2
Baniso -1Baniso -2Baniso -3
1--7.53 Å20 Å20 Å2
2--18.62 Å20 Å2
3----11.1 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.39 Å0.29 Å
Luzzati d res low-5 Å
Luzzati sigma a0.48 Å0.36 Å
Refinement stepCycle: LAST / Resolution: 2.7→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7302 0 236 239 7777
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.007
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d26.3
X-RAY DIFFRACTIONc_improper_angle_d0.97
X-RAY DIFFRACTIONc_mcbond_it1.291.5
X-RAY DIFFRACTIONc_mcangle_it2.252
X-RAY DIFFRACTIONc_scbond_it1.852
X-RAY DIFFRACTIONc_scangle_it2.852.5
LS refinement shellResolution: 2.7→2.8 Å / Rfactor Rfree error: 0.034 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.35 107 3.7 %
Rwork0.267 2757 -
obs--99.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2carbohydrate.paramcarbohydrate.top
X-RAY DIFFRACTION3cis_peptide.paramion.top
X-RAY DIFFRACTION4ion.paramwater.top
X-RAY DIFFRACTION5gla.paramgla.top

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