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- PDB-3ca1: Sambucus nigra agglutinin II (SNA-II)- tetragonal crystal form- c... -

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Basic information

Entry
Database: PDB / ID: 3ca1
TitleSambucus nigra agglutinin II (SNA-II)- tetragonal crystal form- complexed to galactose
ComponentsAgglutinin II
KeywordsSugar binding protein / Plant protein / BETA-TREFOIL / RICIN-B DOMAIN / GLYCOSYLATION / LECTIN / Glycoprotein
Function / homology
Function and homology information


rRNA N-glycosylase / rRNA N-glycosylase activity / defense response / toxin activity / carbohydrate binding / negative regulation of translation
Similarity search - Function
Ribosome-inactivating protein conserved site / Shiga/ricin ribosomal inactivating toxins active site signature. / Ricin-type beta-trefoil lectin domain / Ribosome-inactivating protein type 1/2 / Ribosome-inactivating protein / Ribosome-inactivating protein, subdomain 1 / Ribosome-inactivating protein, subdomain 2 / Ribosome-inactivating protein superfamily / Ribosome inactivating protein / Ricin-type beta-trefoil ...Ribosome-inactivating protein conserved site / Shiga/ricin ribosomal inactivating toxins active site signature. / Ricin-type beta-trefoil lectin domain / Ribosome-inactivating protein type 1/2 / Ribosome-inactivating protein / Ribosome-inactivating protein, subdomain 1 / Ribosome-inactivating protein, subdomain 2 / Ribosome-inactivating protein superfamily / Ribosome inactivating protein / Ricin-type beta-trefoil / Lectin domain of ricin B chain profile. / Ricin B, lectin domain / Ricin B-like lectins / Trefoil (Acidic Fibroblast Growth Factor, subunit A) - #50 / Trefoil (Acidic Fibroblast Growth Factor, subunit A) / Trefoil / Mainly Beta
Similarity search - Domain/homology
ACETATE ION / alpha-D-galactopyranose / Nigrin b
Similarity search - Component
Biological speciesSambucus nigra (European elder)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.55 Å
AuthorsMaveyraud, L. / Mourey, L.
CitationJournal: Proteins / Year: 2009
Title: Structural basis for sugar recognition, including the Tn carcinoma antigen, by the lectin SNA-II from Sambucus nigra
Authors: Maveyraud, L. / Niwa, H. / Guillet, V. / Svergun, D.I. / Konarev, P.V. / Palmer, R.A. / Peumans, W.J. / Rouge, P. / Van Damme, E.J. / Reynolds, C.D. / Mourey, L.
History
DepositionFeb 19, 2008Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 25, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / chem_comp / database_PDB_caveat / 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_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 / _atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] / _atom_site_anisotrop.U[1][3] / _atom_site_anisotrop.U[2][2] / _atom_site_anisotrop.U[2][3] / _atom_site_anisotrop.U[3][3] / _atom_site_anisotrop.pdbx_auth_asym_id / _atom_site_anisotrop.pdbx_auth_atom_id / _atom_site_anisotrop.pdbx_auth_comp_id / _atom_site_anisotrop.pdbx_auth_seq_id / _atom_site_anisotrop.pdbx_label_asym_id / _atom_site_anisotrop.pdbx_label_atom_id / _atom_site_anisotrop.pdbx_label_comp_id / _atom_site_anisotrop.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_special_symmetry.label_asym_id / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _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 2.1Apr 3, 2024Group: 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 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Agglutinin II
hetero molecules


Theoretical massNumber of molelcules
Total (without water)31,31815
Polymers28,4391
Non-polymers2,87814
Water6,521362
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)126.124, 126.124, 76.039
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number98
Space group name H-MI4122
Components on special symmetry positions
IDModelComponents
11A-903-

SO4

21A-919-

HOH

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Agglutinin II / SNA-II


Mass: 28439.059 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sambucus nigra (European elder) / Tissue: BARK / References: UniProt: P33183

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Sugars , 4 types, 6 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.: 2
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 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#4: 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.: 1
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
#5: 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.: 2
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

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Non-polymers , 3 types, 370 molecules

#6: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: SO4
#7: Chemical ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 362 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY
Sequence detailsAUTHORS STATE THAT THE ELECTRON DENSITY OF THE STRUCTURE INDICATES CLEARLY THAT THE AMINO ACID AT ...AUTHORS STATE THAT THE ELECTRON DENSITY OF THE STRUCTURE INDICATES CLEARLY THAT THE AMINO ACID AT POSITION 224 IS A LEU AND NOT A HIS.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.67 Å3/Da / Density % sol: 53.87 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 4.5
Details: PROTEIN 16 MG/ML, AMMONIUM SULFATE 2.0 M, SODIUM ACETATE 100 mM, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: BM30A / Wavelength: 0.9795 Å
DetectorType: MAR CCD 165 mm / Detector: CCD / Date: Sep 26, 2003
RadiationMonochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9795 Å / Relative weight: 1
ReflectionResolution: 1.55→34.74 Å / Num. all: 42644 / Num. obs: 42644 / % possible obs: 96.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.4 % / Biso Wilson estimate: 15.5 Å2 / Rmerge(I) obs: 0.052 / Rsym value: 0.052 / Net I/σ(I): 21.5
Reflection shellResolution: 1.55→1.64 Å / Redundancy: 2.7 % / Rmerge(I) obs: 0.135 / Mean I/σ(I) obs: 7.1 / Num. unique all: 4945 / Rsym value: 0.135 / % possible all: 78

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
DNAdata collection
MOSFLMdata reduction
SCALAdata scaling
REFMAC5.2.0019phasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: sambucus nigra agglutinin II tetragonal crystal from

Resolution: 1.55→20 Å / Cor.coef. Fo:Fc: 0.976 / Cor.coef. Fo:Fc free: 0.961 / SU B: 2.154 / SU ML: 0.036 / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 0.077 / ESU R Free: 0.068 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.1631 2131 5 %RANDOM
Rwork0.11654 ---
all0.11885 40471 --
obs0.11885 40471 96.65 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 14.239 Å2
Baniso -1Baniso -2Baniso -3
1-0.03 Å20 Å20 Å2
2--0.03 Å20 Å2
3----0.07 Å2
Refinement stepCycle: LAST / Resolution: 1.55→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1980 0 181 362 2523
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.020.0212427
X-RAY DIFFRACTIONr_bond_other_d0.0020.021557
X-RAY DIFFRACTIONr_angle_refined_deg1.9252.0333360
X-RAY DIFFRACTIONr_angle_other_deg1.0633.0043798
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.2735301
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.91124.84899
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.09715366
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.2431516
X-RAY DIFFRACTIONr_chiral_restr0.1180.2403
X-RAY DIFFRACTIONr_gen_planes_refined0.010.022653
X-RAY DIFFRACTIONr_gen_planes_other0.0030.02443
X-RAY DIFFRACTIONr_nbd_refined0.2250.2444
X-RAY DIFFRACTIONr_nbd_other0.2160.21790
X-RAY DIFFRACTIONr_nbtor_refined0.170.21219
X-RAY DIFFRACTIONr_nbtor_other0.0930.21256
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1640.2209
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2520.230
X-RAY DIFFRACTIONr_symmetry_vdw_other0.3160.251
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1890.242
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it3.83561818
X-RAY DIFFRACTIONr_mcbond_other2.5396567
X-RAY DIFFRACTIONr_mcangle_it4.34492329
X-RAY DIFFRACTIONr_scbond_it5.64291135
X-RAY DIFFRACTIONr_scangle_it7.401131031
X-RAY DIFFRACTIONr_rigid_bond_restr2.85334852
X-RAY DIFFRACTIONr_sphericity_free10.6393363
X-RAY DIFFRACTIONr_sphericity_bonded4.77333920
LS refinement shellResolution: 1.552→1.592 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.22 92 -
Rwork0.078 1901 -
obs--67.49 %

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