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- PDB-1cxk: COMPLEX BETWEEN A MALTONONAOSE SUBSTRATE AND BACILLUS CIRCULANS S... -

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Entry
Database: PDB / ID: 1cxk
TitleCOMPLEX BETWEEN A MALTONONAOSE SUBSTRATE AND BACILLUS CIRCULANS STRAIN 251 CGTASE E257Q/D229N
ComponentsPROTEIN (CYCLODEXTRIN-GLYCOSYLTRANSFERASE)
KeywordsTRANSFERASE / GLYCOSYL HYDROLASE FAMILY 13 / ALPHA-AMYLASE FAMILY / SUBSTRATE COMPLEX / MALTONONAOSE
Function / homology
Function and homology information


cyclomaltodextrin glucanotransferase / cyclomaltodextrin glucanotransferase activity / starch binding / alpha-amylase activity / carbohydrate metabolic process / extracellular region / metal ion binding
Similarity search - Function
Carbohydrate binding module family 20 / Starch binding domain / CBM20 (carbohydrate binding type-20) domain profile. / Starch binding domain / Carbohydrate-binding-like fold / Alpha-amylase, C-terminal domain / Aamy_C / Alpha-amylase/branching enzyme, C-terminal all beta / Alpha amylase, C-terminal all-beta domain / Alpha amylase ...Carbohydrate binding module family 20 / Starch binding domain / CBM20 (carbohydrate binding type-20) domain profile. / Starch binding domain / Carbohydrate-binding-like fold / Alpha-amylase, C-terminal domain / Aamy_C / Alpha-amylase/branching enzyme, C-terminal all beta / Alpha amylase, C-terminal all-beta domain / Alpha amylase / IPT/TIG domain / IPT domain / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Golgi alpha-mannosidase II / Glycosyl hydrolase, all-beta / Glycosidases / Immunoglobulin E-set / Glycoside hydrolase superfamily / Immunoglobulins / TIM Barrel / Alpha-Beta Barrel / Immunoglobulin-like fold / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
alpha-maltose / alpha-maltotetraose / Cyclomaltodextrin glucanotransferase
Similarity search - Component
Biological speciesBacillus circulans (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.09 Å
AuthorsUitdehaag, J.C.M. / Kalk, K.H. / Dijkstra, B.W.
Citation
Journal: Nat.Struct.Biol. / Year: 1999
Title: X-ray structures along the reaction pathway of cyclodextrin glycosyltransferase elucidate catalysis in the alpha-amylase family.
Authors: Uitdehaag, J.C. / Mosi, R. / Kalk, K.H. / van der Veen, B.A. / Dijkhuizen, L. / Withers, S.G. / Dijkstra, B.W.
#1: Journal: Biochemistry / Year: 1998
Title: Reassessment of acarbose as a transition state analogue inhibitor of cyclodextrin glycosyltransferase.
Authors: Mosi, R. / Sham, H. / Uitdehaag, J.C. / Ruiterkamp, R. / Dijkstra, B.W. / Withers, S.G.
#2: Journal: Biochemistry / Year: 1996
Title: Structure of cyclodextrin glycosyltransferase complexed with a maltononaose inhibitor at 2.6 angstrom resolution. Implications for product specificity.
Authors: Strokopytov, B. / Knegtel, R.M. / Penninga, D. / Rozeboom, H.J. / Kalk, K.H. / Dijkhuizen, L. / Dijkstra, B.W.
#3: Journal: J.Biol.Chem. / Year: 1995
Title: Crystallographic studies of the interaction of cyclodextrin glycosyltransferase from Bacillus circulans strain 251 with natural substrates and products.
Authors: Knegtel, R.M. / Strokopytov, B. / Penninga, D. / Faber, O.G. / Rozeboom, H.J. / Kalk, K.H. / Dijkhuizen, L. / Dijkstra, B.W.
#4: Journal: J.Mol.Biol. / Year: 1994
Title: Nucleotide sequence and X-ray structure of cyclodextrin glycosyltransferase from Bacillus circulans strain 251 in a maltose-dependent crystal form.
Authors: Lawson, C.L. / van Montfort, R. / Strokopytov, B. / Rozeboom, H.J. / Kalk, K.H. / de Vries, G.E. / Penninga, D. / Dijkhuizen, L. / Dijkstra, B.W.
History
DepositionFeb 24, 1999Deposition site: PDBE / Processing site: RCSB
Revision 1.0May 3, 1999Provider: repository / Type: Initial release
Revision 1.1Oct 16, 2007Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 4, 2017Group: Refinement description / Category: software / Item: _software.name
Revision 1.4Apr 18, 2018Group: Data collection / Category: diffrn_detector / Item: _diffrn_detector.detector
Revision 1.5Nov 6, 2019Group: Data collection / Database references / Derived calculations
Category: chem_comp / citation ...chem_comp / citation / citation_author / struct_conn
Item: _chem_comp.type / _citation.page_last ..._chem_comp.type / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.name / _struct_conn.pdbx_leaving_atom_flag
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / struct_asym / struct_conn / struct_conn_type / 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_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_value_order / _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.ptnr1_label_seq_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 / _struct_conn_type.id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Nov 3, 2021Group: Database references / Structure summary / Category: chem_comp / database_2 / struct_ref_seq_dif
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details
Revision 2.2Aug 9, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PROTEIN (CYCLODEXTRIN-GLYCOSYLTRANSFERASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)77,8067
Polymers74,5741
Non-polymers3,2336
Water11,403633
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)117.124, 110.905, 67.593
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 1 molecules A

#1: Protein PROTEIN (CYCLODEXTRIN-GLYCOSYLTRANSFERASE) / CGTASE


Mass: 74573.516 Da / Num. of mol.: 1 / Mutation: E257Q, D229N
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus circulans (bacteria) / Strain: 251
Description: MUTANTS WERE CONSTRUCTED IN ECOLI STRAIN MC1061
Plasmid: PDP66S / Gene (production host): CGT / Production host: Bacillus subtilis (bacteria) / Strain (production host): DB104A
References: UniProt: P43379, cyclomaltodextrin glucanotransferase

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Sugars , 3 types, 4 molecules

#2: Polysaccharide alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-maltose


Type: oligosaccharide, Oligosaccharide / Class: Nutrient / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: alpha-maltose
DescriptorTypeProgram
DGlcpa1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1a_1-5]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][a-D-Glcp]{}}LINUCSPDB-CARE
#3: Polysaccharide alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D- ...alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose


Type: oligosaccharide / Mass: 1477.282 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,9,8/[a2122h-1a_1-5]/1-1-1-1-1-1-1-1-1/a4-b1_b4-c1_c4-d1_d4-e1_e4-f1_f4-g1_g4-h1_h4-i1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{}}}}}}}}}LINUCSPDB-CARE
#4: Polysaccharide alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-maltotetraose


Type: oligosaccharide, Oligosaccharide / Class: Substrate analog / Mass: 666.578 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: alpha-maltotetraose
DescriptorTypeProgram
DGlcpa1-4DGlcpa1-4DGlcpa1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,4,3/[a2122h-1a_1-5]/1-1-1-1/a4-b1_b4-c1_c4-d1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-Glcp]{}}}}LINUCSPDB-CARE

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Non-polymers , 2 types, 635 molecules

#5: Chemical ChemComp-CA / CALCIUM ION


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


Mass: 18.015 Da / Num. of mol.: 633 / Source method: isolated from a natural source / Formula: H2O

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Details

Nonpolymer detailsCA: RESIDUES 688 AND 689 ARE CALCIUM IONS. GLC: THE GLC O1 ATOM IS CONNECTED TO THE C4 ATOM OF THE ...CA: RESIDUES 688 AND 689 ARE CALCIUM IONS. GLC: THE GLC O1 ATOM IS CONNECTED TO THE C4 ATOM OF THE PREVIOUS RESIDUE VIA AN ALPHA(1->4) GLYCOSIDIC BOND A LOOSE O1 IS A REDUCING END WITH ALPHA-ANOMERIC CONFIGURATION

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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: 2.92 Å3/Da / Density % sol: 61 %
Description: STEREOCHEMICAL RESTRAINTS ON SUGAR IN SUBSITE -1 WERE 10X RELAXED COMPARED TO OTHER SUGARS
Crystal growpH: 10.3 / Details: pH 10.30
Crystal grow
*PLUS
pH: 5.5 / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
128.7 mg/mlprotein1drop
250 mMammonium acetate1drop
350 mg/mlalpha-cyclodextrin1drop
460 %(v/v)MPD1reservoir
5100 mMsodium Hepes1reservoir

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Data collection

DiffractionMean temperature: 120 K
Diffraction sourceSource: ROTATING ANODE / Type: ELLIOTT GX-21 / Wavelength: 1.5418
DetectorType: ENRAF-NONIUS FAST / Detector: DIFFRACTOMETER / Date: Jan 1, 1996
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.09→22.92 Å / Num. obs: 45159 / % possible obs: 84.9 % / Observed criterion σ(I): 3 / Redundancy: 4.6 % / Biso Wilson estimate: 13.65 Å2 / Rmerge(I) obs: 0.067
Reflection shellResolution: 2.09→2.16 Å / Redundancy: 1.3 % / Rmerge(I) obs: 0.16 / % possible all: 27.6
Reflection
*PLUS
% possible obs: 84.9 %
Reflection shell
*PLUS
% possible obs: 27.6 %

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Processing

Software
NameClassification
MADNESSdata collection
BIOMOLdata reduction
TNTrefinement
MADNESSdata reduction
BIOMOLdata scaling
TNTphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1CXI

1cxi


Resolution: 2.09→8 Å / Isotropic thermal model: TNT BCORREL / Cross valid method: RFREE / σ(F): 0 / Stereochemistry target values: TNT PROTGEO
RfactorNum. reflection% reflectionSelection details
Rfree0.21 2258 5 %EVERY
Rwork0.158 ---
obs-45159 84.9 %-
Solvent computationSolvent model: BABINET SCALING / Bsol: 206.4 Å2 / ksol: 0.737 e/Å3
Refinement stepCycle: LAST / Resolution: 2.09→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5264 0 215 633 6112
Refine LS restraints
Refine-IDTypeDev idealNumberWeight
X-RAY DIFFRACTIONt_bond_d0.00556235
X-RAY DIFFRACTIONt_angle_deg1.51766512
X-RAY DIFFRACTIONt_dihedral_angle_d16.7531320
X-RAY DIFFRACTIONt_incorr_chiral_ct0
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes0.0041478
X-RAY DIFFRACTIONt_gen_planes0.00879530
X-RAY DIFFRACTIONt_it1.38956205
X-RAY DIFFRACTIONt_nbd0.0140580
Software
*PLUS
Name: TNT / Version: 5E / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 13.7 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev idealWeight
X-RAY DIFFRACTIONt_dihedral_angle_d
X-RAY DIFFRACTIONt_dihedral_angle_deg16.750
X-RAY DIFFRACTIONt_plane_restr0.00830

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