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- PDB-7mg8: Concanavalin A bound to a DNA glycoconjugate, Man-CGCG -

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Basic information

Entry
Database: PDB / ID: 7mg8
TitleConcanavalin A bound to a DNA glycoconjugate, Man-CGCG
Components
  • Concanavalin-A
  • DNA (5'-D(P*CP*GP*CP*G)-3')
KeywordsSUGAR BINDING PROTEIN/DNA / Lectin / DNA complex / SUGAR BINDING PROTEIN / SUGAR BINDING PROTEIN-DNA complex
Function / homology
Function and homology information


regulation of defense response to virus / D-mannose binding / defense response / metal ion binding
Similarity search - Function
Legume lectin / Legume lectin, alpha chain, conserved site / Legume lectins alpha-chain signature. / Legume lectins beta-chain signature. / Legume lectin domain / Legume lectin, beta chain, Mn/Ca-binding site / Legume lectin domain / : / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
alpha-D-mannopyranose / : / Chem-SQ0 / DNA / Concanavalin-A
Similarity search - Component
Biological speciesCanavalia ensiformis (jack bean)
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3 Å
AuthorsPartridge, B.E. / Winegar, P.H. / Mirkin, C.A.
Funding support United States, 2items
OrganizationGrant numberCountry
Office of Naval Research (ONR)N00014-15-1-0043 United States
Department of Defense (DOD, United States)FA9550-16-1-0150 United States
CitationJournal: J.Am.Chem.Soc. / Year: 2021
Title: Redefining Protein Interfaces within Protein Single Crystals with DNA.
Authors: Partridge, B.E. / Winegar, P.H. / Han, Z. / Mirkin, C.A.
History
DepositionApr 12, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 16, 2021Provider: repository / Type: Initial release
Revision 1.1Jul 14, 2021Group: Database references / Category: citation
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Oct 18, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Concanavalin-A
B: Concanavalin-A
C: DNA (5'-D(P*CP*GP*CP*G)-3')
D: DNA (5'-D(P*CP*GP*CP*G)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,77912
Polymers53,6284
Non-polymers1,1518
Water39622
1
A: Concanavalin-A
B: Concanavalin-A
C: DNA (5'-D(P*CP*GP*CP*G)-3')
D: DNA (5'-D(P*CP*GP*CP*G)-3')
hetero molecules

A: Concanavalin-A
B: Concanavalin-A
C: DNA (5'-D(P*CP*GP*CP*G)-3')
D: DNA (5'-D(P*CP*GP*CP*G)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)109,55924
Polymers107,2578
Non-polymers2,30216
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,y,-z1
Unit cell
Length a, b, c (Å)66.419, 69.920, 125.869
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21221
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B

NCS domain segments:

Component-ID: _ / Ens-ID: 1 / Beg auth comp-ID: ALA / Beg label comp-ID: ALA / End auth comp-ID: ASN / End label comp-ID: ASN / Refine code: _ / Auth seq-ID: 1 - 237 / Label seq-ID: 1 - 237

Dom-IDAuth asym-IDLabel asym-ID
1AA
2BB

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Components

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Protein / DNA chain / Sugars , 3 types, 6 molecules ABCD

#1: Protein Concanavalin-A / Con A


Mass: 25622.385 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Canavalia ensiformis (jack bean) / References: UniProt: P02866
#2: DNA chain DNA (5'-D(P*CP*GP*CP*G)-3')


Mass: 1191.818 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#5: Sugar ChemComp-MAN / alpha-D-mannopyranose / alpha-D-mannose / D-mannose / mannose


Type: D-saccharide, alpha linking / Mass: 180.156 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H12O6 / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
DManpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-D-mannopyranoseCOMMON NAMEGMML 1.0
a-D-ManpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
ManSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 4 types, 28 molecules

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


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#4: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#6: Chemical ChemComp-SQ0 / 3-{[2-(2-hydroxyethoxy)ethyl]amino}-4-[(6-hydroxyhexyl)amino]cyclobut-3-ene-1,2-dione


Mass: 300.351 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C14H24N2O5 / Feature type: SUBJECT OF INVESTIGATION
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 22 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.78 Å3/Da / Density % sol: 55.71 %
Crystal growTemperature: 295 K / Method: vapor diffusion, sitting drop / pH: 7
Details: Sitting drop comprising 1 uL of Concanavalin A (80 uM) and Man-CGCG (160 uM) + 1 uL crystallization condition (Helix screen, condition D9: 0.05 M bis-Tris (pH 7), 2 M ammonium sulfate, 5% ...Details: Sitting drop comprising 1 uL of Concanavalin A (80 uM) and Man-CGCG (160 uM) + 1 uL crystallization condition (Helix screen, condition D9: 0.05 M bis-Tris (pH 7), 2 M ammonium sulfate, 5% v/v PEG 400). Reservoir contained 70 uL of crystallization condition

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 21-ID-D / Wavelength: 1.1271 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Oct 24, 2019
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.1271 Å / Relative weight: 1
ReflectionResolution: 3→69.92 Å / Num. obs: 11395 / % possible obs: 98.18 % / Redundancy: 9.35 % / Rmerge(I) obs: 0.197 / Rrim(I) all: 0.209 / Net I/σ(I): 2.5272
Reflection shellResolution: 3→3.16 Å / Redundancy: 10.05 % / Rmerge(I) obs: 0.66 / Num. unique obs: 1755 / Rrim(I) all: 0.693 / % possible all: 99.97

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Processing

Software
NameVersionClassification
REFMAC5.8.0258refinement
iMOSFLMdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1JBC

1jbc


Resolution: 3→69.92 Å / Cor.coef. Fo:Fc: 0.887 / Cor.coef. Fo:Fc free: 0.854 / SU B: 23.041 / SU ML: 0.392 / Cross valid method: THROUGHOUT / ESU R Free: 0.488 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.28446 652 5.4 %RANDOM
Rwork0.23317 ---
obs0.23605 11395 98.18 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 57.774 Å2
Baniso -1Baniso -2Baniso -3
1--3.96 Å2-0 Å20 Å2
2--3.55 Å2-0 Å2
3---0.41 Å2
Refinement stepCycle: 1 / Resolution: 3→69.92 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3284 164 68 22 3538
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0133638
X-RAY DIFFRACTIONr_bond_other_d0.0010.0173015
X-RAY DIFFRACTIONr_angle_refined_deg1.5931.6044963
X-RAY DIFFRACTIONr_angle_other_deg1.2621.6116961
X-RAY DIFFRACTIONr_dihedral_angle_1_deg8.1125461
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.67723.286140
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.97315426
X-RAY DIFFRACTIONr_dihedral_angle_4_deg7.942159
X-RAY DIFFRACTIONr_chiral_restr0.1690.2487
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.024097
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02764
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_it5.155.9781857
X-RAY DIFFRACTIONr_mcbond_other5.1345.9761856
X-RAY DIFFRACTIONr_mcangle_it7.8858.9632311
X-RAY DIFFRACTIONr_mcangle_other7.8878.9662312
X-RAY DIFFRACTIONr_scbond_it6.637.4211781
X-RAY DIFFRACTIONr_scbond_other6.6287.421782
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other9.97310.9562649
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Ens-ID: 1 / Number: 6380 / Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Rms dev position: 0.09 Å / Weight position: 0.05

Dom-IDAuth asym-ID
1A
2B
LS refinement shellResolution: 3→3.078 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.388 45 -
Rwork0.278 826 -
obs--99.89 %

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