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- PDB-3poe: Crystal structure of the MASP-1 CUB2 domain bound to Ca2+ -

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Basic information

Entry
Database: PDB / ID: 3poe
TitleCrystal structure of the MASP-1 CUB2 domain bound to Ca2+
ComponentsMannan-binding lectin serine protease 1
KeywordsHYDROLASE / CUB domain / Ca2+ binding site / complement protein / lectin pathway of complement / MBL / MBP / Bloodstream
Function / homology
Function and homology information


Ficolins bind to repetitive carbohydrate structures on the target cell surface / Lectin pathway of complement activation / Initial triggering of complement / complement activation, lectin pathway / complement activation / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / calcium-dependent protein binding / peptidase activity / serine-type endopeptidase activity / calcium ion binding ...Ficolins bind to repetitive carbohydrate structures on the target cell surface / Lectin pathway of complement activation / Initial triggering of complement / complement activation, lectin pathway / complement activation / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / calcium-dependent protein binding / peptidase activity / serine-type endopeptidase activity / calcium ion binding / protein homodimerization activity / proteolysis / extracellular space
Similarity search - Function
Spermadhesin, CUB domain / Peptidase S1A, complement C1r/C1S/mannan-binding / CUB domain / Domain first found in C1r, C1s, uEGF, and bone morphogenetic protein. / CUB domain / CUB domain profile. / Spermadhesin, CUB domain superfamily / : / Calcium-binding EGF domain / Sushi repeat (SCR repeat) ...Spermadhesin, CUB domain / Peptidase S1A, complement C1r/C1S/mannan-binding / CUB domain / Domain first found in C1r, C1s, uEGF, and bone morphogenetic protein. / CUB domain / CUB domain profile. / Spermadhesin, CUB domain superfamily / : / Calcium-binding EGF domain / Sushi repeat (SCR repeat) / Domain abundant in complement control proteins; SUSHI repeat; short complement-like repeat (SCR) / Sushi/SCR/CCP domain / Sushi/CCP/SCR domain profile. / Sushi/SCR/CCP superfamily / EGF-like calcium-binding, conserved site / Calcium-binding EGF-like domain signature. / Aspartic acid and asparagine hydroxylation site. / EGF-like calcium-binding domain / Calcium-binding EGF-like domain / EGF-like domain signature 2. / EGF-like domain / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Serine proteases, trypsin family, histidine active site. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, serine active site. / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Jelly Rolls / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / Sandwich / Mainly Beta
Similarity search - Domain/homology
Mannan-binding lectin serine protease 1
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.501 Å
AuthorsGingras, A.R. / Moody, P.C.E. / Wallis, R.
CitationJournal: Structure / Year: 2011
Title: Structural Basis of Mannan-Binding Lectin Recognition by Its Associated Serine Protease MASP-1: Implications for Complement Activation.
Authors: Gingras, A.R. / Girija, U.V. / Keeble, A.H. / Panchal, R. / Mitchell, D.A. / Moody, P.C. / Wallis, R.
History
DepositionNov 22, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 24, 2011Provider: repository / Type: Initial release
Revision 1.1Nov 30, 2011Group: Database references
Revision 1.2Sep 6, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / 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_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.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_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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Mannan-binding lectin serine protease 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)13,1723
Polymers13,0921
Non-polymers802
Water3,081171
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)36.670, 36.670, 168.600
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212
Components on special symmetry positions
IDModelComponents
11A-39-

HOH

21A-89-

HOH

31A-97-

HOH

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Components

#1: Protein Mannan-binding lectin serine protease 1 / Complement factor MASP-3 / Complement-activating component of Ra-reactive factor / Mannose-binding ...Complement factor MASP-3 / Complement-activating component of Ra-reactive factor / Mannose-binding lectin-associated serine protease 1 / MASP-1 / Mannose-binding protein-associated serine protease / Ra-reactive factor serine protease p100 / RaRF / Serine protease 5 / Mannan-binding lectin serine protease 1 heavy chain / Mannan-binding lectin serine protease 1 light chain


Mass: 13091.511 Da / Num. of mol.: 1 / Fragment: MASP-1 CUB2 domain (UNP Residues 188-301)
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Crarf, MASP-1, Masp1, Masp3 / Plasmid: pET28A / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: Q8CHN8, Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases
#2: Chemical ChemComp-CA / CALCIUM ION


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


Mass: 18.015 Da / Num. of mol.: 171 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.16 Å3/Da / Density % sol: 43.18 %
Crystal growTemperature: 279 K / Method: vapor diffusion, sitting drop / pH: 9
Details: 24% PEG 8000, 50mM Tris buffer, pH 9.0, 20mM CaCl2, VAPOR DIFFUSION, SITTING DROP, temperature 279K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I04 / Wavelength: 0.9687 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: May 27, 2010
RadiationMonochromator: multi-layer optics / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9687 Å / Relative weight: 1
ReflectionResolution: 1.5→30 Å / Num. all: 19395 / Num. obs: 19394 / % possible obs: 99.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 7.1 % / Rmerge(I) obs: 0.034 / Net I/σ(I): 34.71
Reflection shellResolution: 1.5→1.59 Å / Redundancy: 7.17 % / Rmerge(I) obs: 0.169 / Mean I/σ(I) obs: 9.33 / Num. unique all: 3037 / % possible all: 99.2

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Processing

Software
NameVersionClassification
ADSCQuantumdata collection
PHASERphasing
REFMAC5.5.0109refinement
XDSdata reduction
XSCALEdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3DEM

3dem


Resolution: 1.501→27.67 Å / Cor.coef. Fo:Fc: 0.974 / Cor.coef. Fo:Fc free: 0.963 / SU B: 1.95 / SU ML: 0.034 / Cross valid method: THROUGHOUT / ESU R: 0.074 / ESU R Free: 0.066 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.17711 970 5 %RANDOM
Rwork0.13328 ---
all0.13549 19395 --
obs0.13549 18424 100 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 13.93 Å2
Baniso -1Baniso -2Baniso -3
1-0.02 Å20 Å20 Å2
2--0.02 Å20 Å2
3----0.05 Å2
Refinement stepCycle: LAST / Resolution: 1.501→27.67 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms896 0 2 171 1069
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0240.022969
X-RAY DIFFRACTIONr_bond_other_d0.0160.02670
X-RAY DIFFRACTIONr_angle_refined_deg2.0491.9671331
X-RAY DIFFRACTIONr_angle_other_deg2.37831643
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.1345125
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.23924.46847
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.83315158
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.178155
X-RAY DIFFRACTIONr_chiral_restr0.1360.2139
X-RAY DIFFRACTIONr_gen_planes_refined0.0140.0211098
X-RAY DIFFRACTIONr_gen_planes_other0.010.02197
X-RAY DIFFRACTIONr_mcbond_it2.4581.5586
X-RAY DIFFRACTIONr_mcbond_other2.2371.5229
X-RAY DIFFRACTIONr_mcangle_it3.6522967
X-RAY DIFFRACTIONr_scbond_it5.4433383
X-RAY DIFFRACTIONr_scangle_it7.864.5358
X-RAY DIFFRACTIONr_rigid_bond_restr2.5431639
LS refinement shellResolution: 1.501→1.54 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.202 70 -
Rwork0.153 1328 -
obs--100 %

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