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Basic information

Entry
Database: PDB / ID: 3g84
TitleCrystal structure of the trimeric neck and carbohydrate recognition domain of R343V mutant of human surfactant protein D in complex with alpha 1,2 dimannose.
ComponentsPulmonary surfactant-associated protein D
KeywordsSUGAR BINDING PROTEIN / SURFACTANT PROTEIN / CARBOHYDRATE RECOGNITION DOMAIN / TRIMERIC / Collagen / Extracellular matrix / Gaseous exchange / Glycoprotein / Hydroxylation / Lectin / Secreted / Surface film
Function / homology
Function and homology information


Toll Like Receptor TLR1:TLR2 Cascade / Defective CSF2RB causes SMDP5 / Defective CSF2RA causes SMDP4 / Toll Like Receptor 4 (TLR4) Cascade / clathrin-coated endocytic vesicle / respiratory gaseous exchange by respiratory system / Regulation of TLR by endogenous ligand / Surfactant metabolism / collagen trimer / surfactant homeostasis ...Toll Like Receptor TLR1:TLR2 Cascade / Defective CSF2RB causes SMDP5 / Defective CSF2RA causes SMDP4 / Toll Like Receptor 4 (TLR4) Cascade / clathrin-coated endocytic vesicle / respiratory gaseous exchange by respiratory system / Regulation of TLR by endogenous ligand / Surfactant metabolism / collagen trimer / surfactant homeostasis / Signal regulatory protein family interactions / negative regulation of interleukin-2 production / lung alveolus development / macrophage chemotaxis / endocytic vesicle / negative regulation of T cell proliferation / multivesicular body / receptor-mediated endocytosis / regulation of cytokine production / reactive oxygen species metabolic process / positive regulation of phagocytosis / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / SARS-CoV-1 activates/modulates innate immune responses / carbohydrate binding / lysosome / defense response to bacterium / innate immune response / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / extracellular space / extracellular region / identical protein binding
Similarity search - Function
Lung surfactant protein D coiled-coil trimerisation / Lung surfactant protein D coiled-coil trimerisation / 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 ...Lung surfactant protein D coiled-coil trimerisation / Lung surfactant protein D coiled-coil trimerisation / 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
2alpha-alpha-mannobiose / Pulmonary surfactant-associated protein D
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / Resolution: 2.3 Å
AuthorsHead, J.F.
CitationJournal: Biochemistry / Year: 2009
Title: Recognition of mannosylated ligands and influenza A virus by human surfactant protein D: contributions of an extended site and residue 343.
Authors: Crouch, E. / Hartshorn, K. / Horlacher, T. / McDonald, B. / Smith, K. / Cafarella, T. / Seaton, B. / Seeberger, P.H. / Head, J.
History
DepositionFeb 11, 2009Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 17, 2009Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 2017Group: Advisory / Refinement description / Category: pdbx_unobs_or_zero_occ_atoms / software
Item: _software.classification / _software.contact_author ..._software.classification / _software.contact_author / _software.contact_author_email / _software.date / _software.language / _software.location / _software.name / _software.type / _software.version
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 / 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 / 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 / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity.src_method / _entity.type / _pdbx_struct_assembly_gen.asym_id_list / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 20, 2021Group: Advisory / Database references / Structure summary
Category: chem_comp / database_2 ...chem_comp / database_2 / pdbx_unobs_or_zero_occ_atoms / 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 2.2Sep 6, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 2.3Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Pulmonary surfactant-associated protein D
B: Pulmonary surfactant-associated protein D
C: Pulmonary surfactant-associated protein D
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,03015
Polymers51,6423
Non-polymers1,38812
Water2,324129
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8220 Å2
ΔGint-129 kcal/mol
Surface area20500 Å2
MethodPISA
Unit cell
Length a, b, c (Å)55.605, 108.066, 55.595
Angle α, β, γ (deg.)90.000, 91.470, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Pulmonary surfactant-associated protein D / SP-D / PSP-D / Lung surfactant protein D


Mass: 17214.146 Da / Num. of mol.: 3 / Fragment: UNP residues 223-375 / Mutation: R343V
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SFTPD, PSPD, SFTP4 / Plasmid: pet30A (+) / Production host: Escherichia coli (E. coli) / Strain (production host): rosetta blue / References: UniProt: P35247
#2: Polysaccharide alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose / 2alpha-alpha-mannobiose


Type: oligosaccharide, Oligosaccharide / Class: Metabolism / Mass: 342.297 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: 2alpha-alpha-mannobiose
DescriptorTypeProgram
DManpa1-2DManpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a1122h-1a_1-5]/1-1/a2-b1WURCSPDB2Glycan 1.1.0
[][a-D-Manp]{[(2+1)][a-D-Manp]{}}LINUCSPDB-CARE
#3: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 129 / 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: 3.23 Å3/Da / Density % sol: 61.96 %
Crystal growTemperature: 290 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 150MM NACL, 10MM CACL2, 12% PEG 8000, 100MM HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH3R / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Jul 12, 2007
RadiationMonochromator: double mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
Reflection twinOperator: l,-k,h / Fraction: 0.478
ReflectionResolution: 2.3→90 Å / Num. all: 29151 / Num. obs: 29073 / % possible obs: 99.7 % / Redundancy: 3.6 % / Rmerge(I) obs: 0.075 / Χ2: 0.908 / Net I/σ(I): 10.605
Reflection shellResolution: 2.3→2.38 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.319 / Mean I/σ(I) obs: 5 / Num. unique all: 2867 / Χ2: 1.56 / % possible all: 99.9

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACT3.006data extraction
CrystalCleardata collection
RefinementStarting model: pdb entry 1ork

1ork


Resolution: 2.3→49.424 Å / Occupancy max: 1 / Occupancy min: 0 / Cross valid method: THROUGHOUT / Stereochemistry target values: TWIN_LSQ_F
RfactorNum. reflection% reflectionSelection details
Rfree0.191 1445 5.01 %random
Rwork0.152 ---
obs0.154 28816 98.74 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 33.578 Å2 / ksol: 0.344 e/Å3
Displacement parametersBiso max: 86.53 Å2 / Biso mean: 35.438 Å2 / Biso min: 17.49 Å2
Baniso -1Baniso -2Baniso -3
1--6.942 Å20 Å2-4.283 Å2
2--12.297 Å20 Å2
3----5.362 Å2
Refinement stepCycle: LAST / Resolution: 2.3→49.424 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3450 0 78 129 3657
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0053594
X-RAY DIFFRACTIONf_angle_d0.8684863
X-RAY DIFFRACTIONf_chiral_restr0.052546
X-RAY DIFFRACTIONf_plane_restr0.004639
X-RAY DIFFRACTIONf_dihedral_angle_d21.0381314
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 14 / % reflection obs: 98 %

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection allNum. reflection obs
2.3-2.3580.307830.248187419571957
2.358-2.4210.3970.257196020572057
2.421-2.4930.2811210.243186019811981
2.493-2.5730.2051000.228195420542054
2.573-2.6650.2681050.223196220672067
2.665-2.7720.2631020.212199620982098
2.772-2.8980.303960.185192720232023
2.898-3.0510.2441040.171197420782078
3.051-3.2420.1731000.153198120812081
3.242-3.4920.1671050.138198520902090
3.492-3.8430.1641060.115196020662066
3.843-4.3990.1251010.097197920802080
4.399-5.5420.1441020.108201221142114
5.542-49.4350.1591060.133196420702070

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