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- PDB-1kmb: SELECTIN-LIKE MUTANT OF MANNOSE-BINDING PROTEIN A -

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Basic information

Entry
Database: PDB / ID: 1kmb
TitleSELECTIN-LIKE MUTANT OF MANNOSE-BINDING PROTEIN A
ComponentsMANNOSE-BINDING PROTEIN-A
KeywordsLECTIN
Function / homology
Function and homology information


calcium-dependent carbohydrate binding / complement activation, lectin pathway / oligosaccharide binding / killing by host of symbiont cells / collagen trimer / surfactant homeostasis / phosphatidylinositol-4-phosphate binding / polysaccharide binding / protein homotrimerization / D-mannose binding ...calcium-dependent carbohydrate binding / complement activation, lectin pathway / oligosaccharide binding / killing by host of symbiont cells / collagen trimer / surfactant homeostasis / phosphatidylinositol-4-phosphate binding / polysaccharide binding / protein homotrimerization / D-mannose binding / positive regulation of phagocytosis / multivesicular body / complement activation, classical pathway / calcium-dependent protein binding / protease binding / defense response to Gram-positive bacterium / calcium ion binding / protein homodimerization activity / extracellular space / identical protein binding
Similarity search - Function
: / Collectin, C-type lectin-like domain / Collagen triple helix repeat / Collagen triple helix repeat (20 copies) / C-type lectin, conserved site / C-type lectin domain signature. / Mannose-Binding Protein A; Chain A / Mannose-Binding Protein A, subunit A / Lectin C-type domain / C-type lectin domain profile. ...: / Collectin, C-type lectin-like domain / Collagen triple helix repeat / Collagen triple helix repeat (20 copies) / C-type lectin, conserved site / C-type lectin domain signature. / Mannose-Binding Protein A; Chain A / Mannose-Binding Protein A, subunit A / Lectin C-type domain / C-type lectin domain profile. / C-type lectin-like / C-type lectin (CTL) or carbohydrate-recognition domain (CRD) / C-type lectin-like/link domain superfamily / C-type lectin fold / Roll / Alpha Beta
Similarity search - Domain/homology
Mannose-binding protein A
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsNg, K.K.-S. / Weis, W.I.
Citation
Journal: Biochemistry / Year: 1997
Title: Structure of a selectin-like mutant of mannose-binding protein complexed with sialylated and sulfated Lewis(x) oligosaccharides.
Authors: Ng, K.K. / Weis, W.I.
#1: Journal: J.Biol.Chem. / Year: 1996
Title: Introduction of Selectin-Like Binding Specificity Into a Homologous Mannose-Binding Protein
Authors: Blanck, O. / Iobst, S.T. / Gabel, C. / Drickamer, K.
#2: Journal: Structure / Year: 1994
Title: Trimeric Structure of a C-Type Mannose-Binding Protein
Authors: Weis, W.I. / Drickamer, K.
History
DepositionNov 7, 1996Processing site: BNL
Revision 1.0Feb 12, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_alt_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.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_alt_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.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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.ptnr1_symmetry / _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.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 9, 2023Group: Refinement description / Category: pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
1: MANNOSE-BINDING PROTEIN-A
2: MANNOSE-BINDING PROTEIN-A
3: MANNOSE-BINDING PROTEIN-A
hetero molecules


Theoretical massNumber of molelcules
Total (without water)50,17715
Polymers49,7103
Non-polymers46712
Water8,035446
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7280 Å2
ΔGint-200 kcal/mol
Surface area21790 Å2
MethodPISA
Unit cell
Length a, b, c (Å)79.700, 84.900, 98.700
Angle α, β, γ (deg.)90.00, 105.30, 90.00
Int Tables number5
Space group name H-MC121
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(0.472869, -0.519698, -0.711554), (0.51216, -0.495007, 0.701898), (-0.716999, -0.696335, 0.032095)38.477, 5.265, 52.038
2given(0.483663, 0.494895, -0.721906), (-0.484675, -0.535352, -0.691728), (-0.728807, 0.684454, -0.019067)16.9181, 59.1311, 24.347

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Components

#1: Protein MANNOSE-BINDING PROTEIN-A / MBP-A / K3


Mass: 16569.910 Da / Num. of mol.: 3 / Fragment: CLOSTRIPAIN FRAGMENT / Mutation: A211K, S212K, H213K
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Plasmid: PINIIIOMPA2 / Production host: Escherichia coli (E. coli) / References: UniProt: P19999
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Cl
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 446 / Source method: isolated from a natural source / Formula: H2O
Compound detailsTHE PURIFIED PROTEIN WAS DIGESTED WITH CLOSTRIPAIN TO PRODUCE THE FRAGMENT USED IN THE CRYSTAL ...THE PURIFIED PROTEIN WAS DIGESTED WITH CLOSTRIPAIN TO PRODUCE THE FRAGMENT USED IN THE CRYSTAL STRUCTURE ANALYSIS.

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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: 3.2 Å3/Da / Density % sol: 68 %
Crystal growpH: 7.8
Details: 8-10% PEG 8000, 2% PEG 1000, 1 MM TRIS-CL, PH 7.8, 200 MM NACL, 20 MM CACL2, 2 MM NAN3. PRIOR TO DATA COLLECTION, THE CRYSTAL WAS ADAPTED TO THE MOTHER LIQUOR PLUS 20% MPD.
Crystal grow
*PLUS
Temperature: 22 ℃ / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
12 mg/mlprotein1drop
250 mM1dropNaOH
35 mM1dropCaCl2
48-10 %(w/v)PEG80001reservoirsolution A
52 %PEG10001reservoirsolution A
6100 mMTris-HCl1reservoirsolution A
7200 mM1reservoirNaClsolution A
82 mM1reservoirNaN3solution A
920 mM1reservoirCaCl2solution A
10solution A1drop

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Mar 8, 1996 / Details: COLLIMATOR
RadiationMonochromator: GRAPHITE(002) / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.1→40 Å / Num. obs: 36862 / % possible obs: 99.5 % / Observed criterion σ(I): -3 / Redundancy: 2.9 % / Biso Wilson estimate: 20.6 Å2 / Rmerge(I) obs: 0.053 / Rsym value: 0.053 / Net I/σ(I): 13
Reflection shellResolution: 2.1→2.17 Å / Redundancy: 2.7 % / Rmerge(I) obs: 0.276 / Mean I/σ(I) obs: 4.5 / Rsym value: 0.276 / % possible all: 99
Reflection shell
*PLUS
% possible obs: 99 %

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLOR3.54refinement
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1RTM

1rtm


Resolution: 2.1→10 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 100000 / Data cutoff low absF: 0.1 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2
RfactorNum. reflection% reflectionSelection details
Rfree0.265 3207 10 %RANDOM
Rwork0.202 ---
obs0.202 32009 87.2 %-
Displacement parametersBiso mean: 26.2 Å2
Baniso -1Baniso -2Baniso -3
1-8.68 Å20 Å27.83 Å2
2---1.23 Å20 Å2
3---7.14 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.35 Å0.25 Å
Luzzati d res low-10 Å
Refinement stepCycle: LAST / Resolution: 2.1→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3477 0 12 446 3935
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.008
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.3
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d22.3
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.3
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it2.11.5
X-RAY DIFFRACTIONx_mcangle_it3.32
X-RAY DIFFRACTIONx_scbond_it4.12
X-RAY DIFFRACTIONx_scangle_it6.32.5
LS refinement shellResolution: 2.1→2.17 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.29 218 10 %
Rwork0.244 1828 -
obs--60.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARAMCSDX_MOD.PROTOPHCSDX.PRO
X-RAY DIFFRACTION2PARAM3_MOD.CHOTOPH19_MOD.SOL
X-RAY DIFFRACTION3PARAM19.SOL
Software
*PLUS
Name: X-PLOR / Version: 3.54 / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg22.3
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.3
LS refinement shell
*PLUS
Rfactor Rfree: 0.29

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