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- PDB-3bcv: Crystal structure of a putative glycosyltransferase from Bacteroi... -

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Basic information

Entry
Database: PDB / ID: 3bcv
TitleCrystal structure of a putative glycosyltransferase from Bacteroides fragilis
ComponentsPutative glycosyltransferase protein
KeywordsTRANSFERASE / Glycosyltransferase / Protein Structure Initiative II / PSI-II / 12059a / NYSGXRC / Structural Genomics / New York SGX Research Center for Structural Genomics
Function / homologyGlycosyltransferase 2-like / Glycosyl transferase family 2 / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Nucleotide-diphospho-sugar transferases / transferase activity / Alpha-Beta Complex / Alpha Beta / Putative glycosyltransferase protein
Function and homology information
Biological speciesBacteroides fragilis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution: 2.35 Å
AuthorsPalani, K. / Kumaran, D. / Burley, S.K. / Swaminathan, S. / New York SGX Research Center for Structural Genomics (NYSGXRC)
CitationJournal: To be Published
Title: Crystal structure of a putative glycosyltransferase from Bacteroides fragilis.
Authors: Palani, K. / Kumaran, D. / Burley, S.K. / Swaminathan, S.
History
DepositionNov 13, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 27, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Source and taxonomy / Version format compliance
Revision 1.2Feb 3, 2021Group: Database references / Derived calculations / Structure summary
Category: audit_author / citation_author ...audit_author / citation_author / struct_conn / struct_ref_seq_dif
Item: _audit_author.identifier_ORCID / _citation_author.identifier_ORCID ..._audit_author.identifier_ORCID / _citation_author.identifier_ORCID / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Putative glycosyltransferase protein
B: Putative glycosyltransferase protein


Theoretical massNumber of molelcules
Total (without water)55,0892
Polymers55,0892
Non-polymers00
Water1,874104
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2010 Å2
MethodPISA
Unit cell
Length a, b, c (Å)152.434, 152.434, 152.434
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number197
Space group name H-MI23

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Components

#1: Protein Putative glycosyltransferase protein /


Mass: 27544.617 Da / Num. of mol.: 2 / Fragment: Residues 2-230
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacteroides fragilis (bacteria) / Strain: NCTC 9343 / Gene: BF2801 / Plasmid: BC-pSGX3(BC) / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: Q5LBM4
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 104 / 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: 2.7 Å3/Da / Density % sol: 54.4 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 4.6
Details: 0.1M Sodium acetate trihydrate, 0.2M Ammonium sulfate, pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X29A / Wavelength: 0.979 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Oct 23, 2007 / Details: Mirrors
RadiationMonochromator: Si(III) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.35→50 Å / Num. all: 23202 / Num. obs: 23202 / % possible obs: 98.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 19.6 % / Biso Wilson estimate: 44.8 Å2 / Rmerge(I) obs: 0.083 / Net I/σ(I): 14.6
Reflection shellResolution: 2.35→2.43 Å / Redundancy: 3.2 % / Rmerge(I) obs: 0.448 / Mean I/σ(I) obs: 2 / Num. unique all: 2056 / % possible all: 84.6

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Processing

Software
NameVersionClassification
CNS1.1refinement
CBASSdata collection
HKL-2000data reduction
HKL-2000data scaling
SHELXDphasing
SHARPphasing
ARP/wARPmodel building
RefinementMethod to determine structure: SAD / Resolution: 2.35→27.83 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 59750.6 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
Details: Residues listed as missing in Remark 465 are due to lack of electron density. Residues with missing atoms listed in Remark 470 are due to lack of electron density for side chains and modeled as alanines.
RfactorNum. reflection% reflectionSelection details
Rfree0.257 1119 4.8 %RANDOM
Rwork0.23 ---
all0.23 23202 --
obs0.23 23202 94.4 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 34.0043 Å2 / ksol: 0.345065 e/Å3
Displacement parametersBiso mean: 39.9 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.39 Å0.32 Å
Luzzati d res low-5 Å
Luzzati sigma a0.31 Å0.34 Å
Refinement stepCycle: LAST / Resolution: 2.35→27.83 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3110 0 0 104 3214
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d23.1
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.87
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.321.5
X-RAY DIFFRACTIONc_mcangle_it2.072
X-RAY DIFFRACTIONc_scbond_it2.892
X-RAY DIFFRACTIONc_scangle_it3.432.5
LS refinement shellResolution: 2.35→2.5 Å / Rfactor Rfree error: 0.027 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.336 150 4.9 %
Rwork0.344 2892 -
obs--75.1 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2carbohydrate.paramcarbohydrate.top
X-RAY DIFFRACTION3water_rep.paramwater.top
X-RAY DIFFRACTION4ion.paramion.top
X-RAY DIFFRACTION5carbohydrate.paramcarbohydrate.top

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