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- PDB-5cql: GTB mutant with mercury - E303A -

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Basic information

Entry
Database: PDB / ID: 5cql
TitleGTB mutant with mercury - E303A
ComponentsHisto-blood group ABO system transferase
KeywordsTRANSFERASE / Human ABO(H) blood group system / Glycosyltransferase / Double turn motif / Catalytic domain
Function / homology
Function and homology information


fucosylgalactoside 3-alpha-galactosyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase activity / fucosylgalactoside 3-alpha-galactosyltransferase activity / ABO blood group biosynthesis / lipid glycosylation / Golgi cisterna membrane / protein glycosylation / antigen binding / manganese ion binding ...fucosylgalactoside 3-alpha-galactosyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase activity / fucosylgalactoside 3-alpha-galactosyltransferase activity / ABO blood group biosynthesis / lipid glycosylation / Golgi cisterna membrane / protein glycosylation / antigen binding / manganese ion binding / vesicle / carbohydrate metabolic process / Golgi membrane / nucleotide binding / Golgi apparatus / extracellular region
Similarity search - Function
Glycosyl transferase, family 6 / Glycosyltransferase family 6 / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Nucleotide-diphospho-sugar transferases / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
: / Histo-blood group ABO system transferase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 1.69 Å
AuthorsGagnon, S.M.L. / Blackler, R.J.
CitationJournal: Glycobiology / Year: 2017
Title: Glycosyltransfer in mutants of putative catalytic residue Glu303 of the human ABO(H) A and B blood group glycosyltransferases GTA and GTB proceeds through a labile active site.
Authors: Blackler, R.J. / Gagnon, S.M. / Polakowski, R. / Rose, N.L. / Zheng, R.B. / Letts, J.A. / Johal, A.R. / Schuman, B. / Borisova, S.N. / Palcic, M.M. / Evans, S.V.
History
DepositionJul 22, 2015Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 26, 2016Provider: repository / Type: Initial release
Revision 1.1Dec 7, 2016Group: Database references
Revision 1.2Jan 11, 2017Group: Database references
Revision 1.3Apr 19, 2017Group: Database references
Revision 1.4Mar 7, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.source
Revision 1.5Sep 27, 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_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
X: Histo-blood group ABO system transferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,2306
Polymers34,2281
Non-polymers1,0035
Water2,270126
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)52.490, 150.210, 79.230
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number20
Space group name H-MC2221

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Components

#1: Protein Histo-blood group ABO system transferase / Fucosylglycoprotein 3-alpha-galactosyltransferase / Fucosylglycoprotein alpha-N- ...Fucosylglycoprotein 3-alpha-galactosyltransferase / Fucosylglycoprotein alpha-N-acetylgalactosaminyltransferase / Glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase / Glycoprotein-fucosylgalactoside alpha-galactosyltransferase / Histo-blood group A transferase / A transferase / Histo-blood group B transferase / B transferase / NAGAT


Mass: 34227.523 Da / Num. of mol.: 1 / Fragment: Catalytic domain (UNP residues 64-354) / Mutation: E303A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ABO / Production host: Escherichia coli (E. coli)
References: UniProt: P16442, glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase, fucosylgalactoside 3-alpha-galactosyltransferase
#2: Chemical
ChemComp-HG / MERCURY (II) ION


Mass: 200.590 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Hg
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 126 / 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: 2.28 Å3/Da / Density % sol: 46.09 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop
Details: 10 ul drops with 6-8 mg/ml protein, 70 mM N-(2-acetamido)-2-iminodiacetic acid (ADA) pH 7.5, 50 mM, sodium acetate pH 4.6, 40 mM NaCl, 5-8 mM MnCl2, 2.5% (v/v) 2-methyl-2,4-pentanediol (MPD) ...Details: 10 ul drops with 6-8 mg/ml protein, 70 mM N-(2-acetamido)-2-iminodiacetic acid (ADA) pH 7.5, 50 mM, sodium acetate pH 4.6, 40 mM NaCl, 5-8 mM MnCl2, 2.5% (v/v) 2-methyl-2,4-pentanediol (MPD), 5%(v/v) glycerol, 2%(w/v) PEG 4000, and 0.3-0.5 mM 3-chloromercuri-2-methoxypropylurea suspended over 1 ml of a resevoir solution: 50 mM ADA pH 7.5, 10 mM MnCl2, 100 mM ammonium sulfate, 5%(v/v) MPD, 10%(v/v) glycerol, and 8-10%(w/v) PEG 4000

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Data collection

DiffractionMean temperature: 113 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Nov 1, 2011
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.69→75.11 Å / Num. obs: 33913 / % possible obs: 97.2 % / Redundancy: 4.55 % / Rmerge(I) obs: 0.0439 / Net I/σ(I): 16.5
Reflection shellRedundancy: 3.67 % / Rmerge(I) obs: 0.291 / Mean I/σ(I) obs: 3.6 / % possible all: 94.4

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Phasing

PhasingMethod: molecular replacement
Phasing MRModel details: Phaser MODE: MR_AUTO
Highest resolutionLowest resolution
Rotation2.5 Å19.86 Å
Translation2.5 Å19.86 Å

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Processing

Software
NameVersionClassification
d*TREKdata scaling
PHASER2.3.0phasing
REFMAC5.8.0073refinement
PDB_EXTRACT3.15data extraction
CrystalCleardata reduction
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1LZ0

1lz0


Resolution: 1.69→75.11 Å / Cor.coef. Fo:Fc: 0.969 / Cor.coef. Fo:Fc free: 0.958 / SU B: 2.208 / SU ML: 0.07 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.095 / ESU R Free: 0.096 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.2065 1704 5 %RANDOM
Rwork0.1744 ---
obs0.176 32209 95.43 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 85.51 Å2 / Biso mean: 31.987 Å2 / Biso min: 16.18 Å2
Baniso -1Baniso -2Baniso -3
1--0.26 Å20 Å20 Å2
2--0.31 Å20 Å2
3----0.05 Å2
Refinement stepCycle: final / Resolution: 1.69→75.11 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2115 0 5 126 2246
Biso mean--45.59 39.43 -
Num. residues----261
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0160.0192195
X-RAY DIFFRACTIONr_bond_other_d0.0010.022094
X-RAY DIFFRACTIONr_angle_refined_deg1.7011.9532991
X-RAY DIFFRACTIONr_angle_other_deg0.87234797
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.2035264
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.4522.7100
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.32715357
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.2021516
X-RAY DIFFRACTIONr_chiral_restr0.1030.2332
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.0212455
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02537
X-RAY DIFFRACTIONr_mcbond_it2.6832.9341053
X-RAY DIFFRACTIONr_mcbond_other2.6822.931052
X-RAY DIFFRACTIONr_mcangle_it3.7134.3681315
LS refinement shellResolution: 1.69→1.734 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.34 120 -
Rwork0.313 2283 -
all-2403 -
obs--92.74 %

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