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- PDB-4d6g: Crystal structure of a family 98 glycoside hydrolase catalytic mo... -

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Basic information

Entry
Database: PDB / ID: 4d6g
TitleCrystal structure of a family 98 glycoside hydrolase catalytic module (Sp3GH98) in complex with the blood group A-trisaccharide (L19 mutant)
ComponentsGLYCOSIDE HYDROLASE
KeywordsHYDROLASE / BLOOD GROUP ANTIGEN
Function / homology
Function and homology information


family 98 glycoside hydrolase / arginine biosynthesis bifunctional protein fold / Polysaccharide lyase family 8-like, C-terminal / Chondroitinase Ac; Chain A, domain 3 / Glycosidases / TIM Barrel / Alpha-Beta Barrel / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Biological speciesSTREPTOCOCCUS PNEUMONIAE (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.24 Å
AuthorsKwan, D.H. / Constantinescu, I. / Chapanian, R. / Higgins, M.A. / Samain, E. / Boraston, A.B. / Kizhakkedathu, J.N. / Withers, S.G.
CitationJournal: J.Am.Chem.Soc. / Year: 2015
Title: Towards Efficient Enzymes for the Generation of Universal Blood Through Structure-Guided Directed Evolution.
Authors: Kwan, D.H. / Constantinescu, I. / Chapanian, R. / Higgins, M.A. / Koetzler, M. / Samain, E. / Boraston, A.B. / Kizhakkedathu, J.N. / Withers, S.G.
History
DepositionNov 11, 2014Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 26, 2014Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2015Group: Database references
Revision 1.2May 20, 2015Group: Database references
Revision 1.3Apr 18, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.pdbx_synchrotron_beamline
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Other / Structure summary
Category: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_database_status / 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 / 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_alt_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.occupancy / _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_alt_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_database_status.status_code_sf / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_seq_id_1 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_ptnr2_label_alt_id / _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.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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Dec 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
Remark 700 SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 8-STRANDED BARREL THIS IS REPRESENTED BY A 9-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: GLYCOSIDE HYDROLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)69,6603
Polymers69,0691
Non-polymers5922
Water18,7721042
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)92.250, 154.020, 96.660
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11A-4006-

HOH

21A-4037-

HOH

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Components

#1: Protein GLYCOSIDE HYDROLASE


Mass: 69068.578 Da / Num. of mol.: 1 / Fragment: CATALYTIC DOMAIN, RESIDUES 423-1005 / Mutation: YES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) STREPTOCOCCUS PNEUMONIAE (bacteria) / Strain: SP3-BS71 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: A5LBQ0, blood-group-substance endo-1,4-beta-galactosidase
#2: Polysaccharide alpha-L-fucopyranose-(1-2)-[2-acetamido-2-deoxy-alpha-D-galactopyranose-(1-3)]alpha-D-galactopyranose


Type: oligosaccharide / Mass: 529.490 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-2[DGalpNAca1-3]DGalpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,3,2/[a2112h-1a_1-5][a1221m-1a_1-5][a2112h-1a_1-5_2*NCC/3=O]/1-2-3/a2-b1_a3-c1WURCSPDB2Glycan 1.1.0
[][a-D-Galp]{[(2+1)][a-L-Fucp]{}[(3+1)][a-D-GalpNAc]{}}LINUCSPDB-CARE
#3: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1042 / Source method: isolated from a natural source / Formula: H2O
Nonpolymer detailsBETA-D-GALACTOSE (GAL): PART OF THE A-TRISACCHARIDE PRODUCT. ALPHA-L-FUCOSE (FUC): PART OF THE A- ...BETA-D-GALACTOSE (GAL): PART OF THE A-TRISACCHARIDE PRODUCT. ALPHA-L-FUCOSE (FUC): PART OF THE A-TRISACCHARIDE PRODUCT. N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE (A2G): PART OF THE A-TRISACCHARIDE PRODUCT.

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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: 2.5 Å3/Da / Density % sol: 50.71 % / Description: NONE
Crystal growDetails: 15% PEG 3350, 0.2M AMMONIUM SULFATE, 0.1M SODIUM ACETATE PH 4.8

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: CLSI / Beamline: 08B1-1 / Type: CLSI / Wavelength: 0.98005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98005 Å / Relative weight: 1
ReflectionResolution: 1.24→48.13 Å / Num. obs: 192579 / % possible obs: 99.6 % / Observed criterion σ(I): 2 / Redundancy: 4.5 % / Rmerge(I) obs: 0.04 / Net I/σ(I): 20.6
Reflection shellResolution: 1.24→1.31 Å / Redundancy: 3.9 % / Rmerge(I) obs: 0.31 / Mean I/σ(I) obs: 4.7 / % possible all: 98

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Processing

Software
NameVersionClassification
REFMAC5.5.0109refinement
MOSFLMdata reduction
Aimlessdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2WMI

2wmi


Resolution: 1.24→48.33 Å / Cor.coef. Fo:Fc: 0.98 / Cor.coef. Fo:Fc free: 0.977 / SU B: 0.849 / SU ML: 0.017 / Cross valid method: THROUGHOUT / ESU R: 0.033 / ESU R Free: 0.031 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.13274 9686 5 %RANDOM
Rwork0.11685 ---
obs0.11764 182768 99.49 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 9.731 Å2
Baniso -1Baniso -2Baniso -3
1-0.01 Å20 Å20 Å2
2--0.01 Å20 Å2
3----0.03 Å2
Refinement stepCycle: LAST / Resolution: 1.24→48.33 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4777 0 52 1042 5871
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0110.0225287
X-RAY DIFFRACTIONr_bond_other_d0.0010.023570
X-RAY DIFFRACTIONr_angle_refined_deg1.4461.9487213
X-RAY DIFFRACTIONr_angle_other_deg0.9293.0018719
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.0655652
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.02825.211261
X-RAY DIFFRACTIONr_dihedral_angle_3_deg11.00415909
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.8421516
X-RAY DIFFRACTIONr_chiral_restr0.1640.2751
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.0216007
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021076
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_it1.1951.53124
X-RAY DIFFRACTIONr_mcbond_other0.391.51257
X-RAY DIFFRACTIONr_mcangle_it1.89625088
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.83932163
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it4.1884.52125
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr1.0738857
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.24→1.272 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.191 693 -
Rwork0.167 12932 -
obs--95.92 %

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