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- PDB-2b9l: Crystal structure of prophenoloxidase activating factor-II from t... -

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Basic information

Entry
Database: PDB / ID: 2b9l
TitleCrystal structure of prophenoloxidase activating factor-II from the beetle Holotrichia diomphalia
Componentsprophenoloxidase activating factor
KeywordsIMMUNE SYSTEM/PROTEIN BINDING / clip domain / easter / innate immunity / melanin / IMMUNE SYSTEM-PROTEIN BINDING COMPLEX
Function / homology
Function and homology information


serine-type endopeptidase activity / innate immune response / extracellular region / metal ion binding
Similarity search - Function
PPAF-2-like, Clip domain / Serine protease Clip domain PPAF-2 / Proteinase, regulatory CLIP domain / Clip domain profile. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases ...PPAF-2-like, Clip domain / Serine protease Clip domain PPAF-2 / Proteinase, regulatory CLIP domain / Clip domain profile. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases / Thrombin, subunit H / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
: / Phenoloxidase-activating factor 2
Similarity search - Component
Biological speciesHolotrichia diomphalia (beetle)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsPiao, S. / Song, Y.-L. / Park, S.Y. / Lee, B.L. / Oh, B.-H. / Ha, N.-C.
CitationJournal: Embo J. / Year: 2005
Title: Crystal structure of a clip-domain serine protease and functional roles of the clip domains.
Authors: Piao, S. / Song, Y.L. / Kim, J.H. / Park, S.Y. / Park, J.W. / Lee, B.L. / Oh, B.H. / Ha, N.C.
History
DepositionOct 12, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 3, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / 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_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / struct_asym / struct_conn / struct_ref_seq_dif / 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_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_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_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.ptnr2_label_asym_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.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _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.ptnr2_label_seq_id / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 23, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: prophenoloxidase activating factor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,38310
Polymers42,9541
Non-polymers1,4299
Water4,828268
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)106.780, 76.587, 69.833
Angle α, β, γ (deg.)90.00, 113.45, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein prophenoloxidase activating factor


Mass: 42953.668 Da / Num. of mol.: 1 / Fragment: residues 25-415
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Holotrichia diomphalia (beetle) / Plasmid: pFASTBACHTc / Cell line (production host): sf-9 / Production host: Spodoptera frugiperda (fall armyworm) / References: GenBank: 10697070, UniProt: Q9GRW0*PLUS
#2: Polysaccharide alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)][alpha-L-fucopyranose-(1- ...alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 716.682 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-3[DGlcpNAcb1-4][LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,4,3/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2-1-2/a3-b1_a4-c1_a6-d1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#3: Chemical
ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 268 / 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: 3 Å3/Da / Density % sol: 58.2 %
Crystal growTemperature: 287 K / Method: vapor diffusion, hanging drop / pH: 5.5
Details: 0.15M ammonium sulfate, 1.25M lithium sulfate, 0.1M sodium citrate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 287K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Photon Factory / Beamline: AR-NW12A / Wavelength: 0.9496 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: Mar 15, 2005
RadiationMonochromator: mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9496 Å / Relative weight: 1
ReflectionResolution: 2→33.63 Å / Num. all: 34927 / Num. obs: 31743 / % possible obs: 90.8 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Biso Wilson estimate: 14.6 Å2
Reflection shellResolution: 2→2.07 Å / % possible all: 76.2

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1CGI

1cgi


Resolution: 2→33.63 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 737121.34 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.238 1550 4.9 %RANDOM
Rwork0.209 ---
all0.213 34927 --
obs0.209 31743 90.8 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 47.1013 Å2 / ksol: 0.375861 e/Å3
Displacement parametersBiso mean: 32 Å2
Baniso -1Baniso -2Baniso -3
1-11.28 Å20 Å26.8 Å2
2---9.72 Å20 Å2
3----1.56 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.26 Å0.25 Å
Luzzati d res low-5 Å
Luzzati sigma a0.21 Å0.16 Å
Refinement stepCycle: LAST / Resolution: 2→33.63 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2863 0 84 268 3215
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
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_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d24.3
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.76
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
LS refinement shellResolution: 2→2.13 Å / Rfactor Rfree error: 0.016 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.245 235 4.9 %
Rwork0.216 4547 -
obs--82.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2sulfate.parsulfate.top
X-RAY DIFFRACTION3carbohydrate.paramcarbohydrate.top
X-RAY DIFFRACTION4water.paramwater.top
X-RAY DIFFRACTION5ion.paramion.top

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