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- PDB-2vk5: THE STRUCTURE OF CLOSTRIDIUM PERFRINGENS NANI SIALIDASE AND ITS C... -

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Basic information

Entry
Database: PDB / ID: 2vk5
TitleTHE STRUCTURE OF CLOSTRIDIUM PERFRINGENS NANI SIALIDASE AND ITS CATALYTIC INTERMEDIATES
ComponentsEXO-ALPHA-SIALIDASE
KeywordsHYDROLASE / SIALIDASE / GLYCOSIDASE / SIALIC ACID / CLOSTRIDIUM PERFRINGENS
Function / homology
Function and homology information


ganglioside catabolic process / oligosaccharide catabolic process / exo-alpha-(2->3)-sialidase activity / exo-alpha-(2->6)-sialidase activity / exo-alpha-(2->8)-sialidase activity / exo-alpha-sialidase / intracellular membrane-bounded organelle / membrane / metal ion binding / cytoplasm
Similarity search - Function
BNR repeat-like domain / Intramolecular trans-sialidase; domain 3 / Intramolecular Trans-sialidase; Domain 3 / Trans-sialidase, domain 3 / Glycoside hydrolase, family 33, N-terminal / Sialidase, N-terminal domain / BNR repeat-like domain / Sialidase family / Sialidase / Neuraminidase - #10 ...BNR repeat-like domain / Intramolecular trans-sialidase; domain 3 / Intramolecular Trans-sialidase; Domain 3 / Trans-sialidase, domain 3 / Glycoside hydrolase, family 33, N-terminal / Sialidase, N-terminal domain / BNR repeat-like domain / Sialidase family / Sialidase / Neuraminidase - #10 / Sialidase superfamily / 6 Propeller / Neuraminidase / Concanavalin A-like lectin/glucanase domain superfamily / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Biological speciesCLOSTRIDIUM PERFRINGENS (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 0.97 Å
AuthorsNewstead, S.L. / Potter, J.A. / Wilson, J.C. / Xu, G. / Chien, C.H. / Watts, A.G. / Withers, S.G. / Taylor, G.L.
CitationJournal: J.Biol.Chem. / Year: 2008
Title: The Structure of Clostridium Perfringens Nani Sialidase and its Catalytic Intermediates.
Authors: Newstead, S.L. / Potter, J.A. / Wilson, J.C. / Xu, G. / Chien, C.H. / Watts, A.G. / Withers, S.G. / Taylor, G.L.
History
DepositionDec 17, 2007Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 22, 2008Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jun 14, 2017Group: Refinement description / Category: refine
Item: _refine.ls_R_factor_R_free / _refine.ls_R_factor_R_work ..._refine.ls_R_factor_R_free / _refine.ls_R_factor_R_work / _refine.ls_number_reflns_obs / _refine.pdbx_starting_model
Revision 1.4Dec 13, 2023Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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 / _struct_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 700 SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN ... SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: EXO-ALPHA-SIALIDASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)50,6705
Polymers50,4061
Non-polymers2644
Water18,5551030
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)96.892, 69.019, 72.808
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein EXO-ALPHA-SIALIDASE / SIALIDASE


Mass: 50405.852 Da / Num. of mol.: 1 / Fragment: CATALYTIC DOMAIN, RESIDUES 243-694
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) CLOSTRIDIUM PERFRINGENS (bacteria) / Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: Q59310, exo-alpha-sialidase
#2: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1030 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 1.9 Å3/Da / Density % sol: 34 % / Description: NONE

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 0.934
DetectorType: ADSC CCD / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.934 Å / Relative weight: 1
ReflectionResolution: 0.97→20 Å / Num. obs: 281317 / % possible obs: 98 % / Observed criterion σ(I): 0 / Redundancy: 4.6 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 15.6
Reflection shellResolution: 0.97→1.02 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.33 / Mean I/σ(I) obs: 3.6 / % possible all: 95

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Processing

Software
NameClassification
SHELXrefinement
MOSFLMdata reduction
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1SLL

1sll


Resolution: 0.97→20 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflection
Rfree0.126 --
Rwork0.115 --
obs-276976 98 %
Refinement stepCycle: LAST / Resolution: 0.97→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3524 0 14 1030 4568
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.017
X-RAY DIFFRACTIONs_angle_d2.048
X-RAY DIFFRACTIONs_similar_dist
X-RAY DIFFRACTIONs_from_restr_planes
X-RAY DIFFRACTIONs_zero_chiral_vol
X-RAY DIFFRACTIONs_non_zero_chiral_vol
X-RAY DIFFRACTIONs_anti_bump_dis_restr
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt
X-RAY DIFFRACTIONs_similar_adp_cmpnt
X-RAY DIFFRACTIONs_approx_iso_adps

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