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- PDB-2zg3: Crystal Structure of Two N-terminal Domains of Native Siglec-5 in... -

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Basic information

Entry
Database: PDB / ID: 2zg3
TitleCrystal Structure of Two N-terminal Domains of Native Siglec-5 in Complex with 3'-Sialyllactose
ComponentsSialic acid-binding Ig-like lectin 5
KeywordsIMMUNE SYSTEM/CARBOHYDRATE BINDING PROTEIN / Siglec-5 inhibitory receptor / two-domain structure / V-set / C2-set / Ig-like domain / sialic acid / 3'-sialyllactose complex / Cell adhesion / Glycoprotein / Immunoglobulin domain / Lectin / Membrane / Polymorphism / Transmembrane / IMMUNE SYSTEM-CARBOHYDRATE BINDING PROTEIN COMPLEX
Function / homology
Function and homology information


sialic acid binding / tertiary granule membrane / ficolin-1-rich granule membrane / secretory granule membrane / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / carbohydrate binding / cell adhesion / Neutrophil degranulation / plasma membrane
Similarity search - Function
: / Immunoglobulin domain / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Immunoglobulins and major histocompatibility complex proteins signature. / Ig-like domain profile. ...: / Immunoglobulin domain / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Immunoglobulins and major histocompatibility complex proteins signature. / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Sialic acid-binding Ig-like lectin 5
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3 Å
AuthorsZhuravleva, M.A. / Sun, P.D.
CitationJournal: J.Mol.Biol. / Year: 2008
Title: Structural implications of Siglec-5-mediated sialoglycan recognition
Authors: Zhuravleva, M.A. / Trandem, K. / Sun, P.D.
History
DepositionJan 17, 2008Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Feb 5, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
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 / 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 / struct_asym / struct_conn / 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 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _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.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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Nov 1, 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
Revision 2.2Oct 16, 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: Sialic acid-binding Ig-like lectin 5
hetero molecules


Theoretical massNumber of molelcules
Total (without water)24,9662
Polymers24,3321
Non-polymers6341
Water61334
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)93.134, 93.134, 213.558
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number155
Space group name H-MH32

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Components

#1: Antibody Sialic acid-binding Ig-like lectin 5 / Siglec-5 / Obesity-binding protein 2 / OB-binding protein 2 / OB-BP2 / CD33 antigen-like 2 / CD170 antigen


Mass: 24332.354 Da / Num. of mol.: 1
Fragment: N-terminal V-set and C2-set domain, UNP residues 20-233
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SIGLEC5 / Plasmid: pET30a / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: O15389
#2: Polysaccharide N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose


Type: oligosaccharide / Mass: 633.552 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DNeup5Aca2-3DGalpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,3,2/[a2122h-1b_1-5][a2112h-1b_1-5][Aad21122h-2a_2-6_5*NCC/3=O]/1-2-3/a4-b1_b3-c2WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Galp]{[(3+2)][a-D-Neup5Ac]{}}}LINUCSPDB-CARE
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 34 / 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: 3.66 Å3/Da / Density % sol: 66.42 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 8
Details: 20% MPEG 550, 0.1M TRIS, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 22-ID / Wavelength: 1 Å
DetectorType: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Feb 1, 2006
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 3→50 Å / Num. obs: 7405 / % possible obs: 99.8 % / Observed criterion σ(I): -3 / Redundancy: 7.3 % / Rsym value: 0.046 / Net I/σ(I): 34.3
Reflection shellHighest resolution: 3 Å / Mean I/σ(I) obs: 4.6 / Rsym value: 0.36 / % possible all: 98.8

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Processing

Software
NameClassification
HKL-2000data collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2ZG2

2zg2


Resolution: 3→25 Å / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.274 485 -random
Rwork0.236 ---
all-7396 --
obs-7310 98.8 %-
Displacement parametersBiso mean: 109 Å2
Refinement stepCycle: LAST / Resolution: 3→25 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1680 0 43 34 1757
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.007
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_deg1.36
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.6921.5
X-RAY DIFFRACTIONc_mcangle_it3.0832
X-RAY DIFFRACTIONc_scbond_it1.7862
X-RAY DIFFRACTIONc_scangle_it3.0042.5
LS refinement shellResolution: 3→3.12 Å /
RfactorNum. reflection
Rfree0.432 38
Rwork0.362 -
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2dna-rna_rep.paramdna-rna.top
X-RAY DIFFRACTION3water_rep.paramwater.top
X-RAY DIFFRACTION4ion.paramion.top
X-RAY DIFFRACTION5carbohydrate.paramcarbohydrate.top

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