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- PDB-1uqs: The Crystal Structure of Human CD1b with a Bound Bacterial Glycolipid -

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Basic information

Entry
Database: PDB / ID: 1uqs
TitleThe Crystal Structure of Human CD1b with a Bound Bacterial Glycolipid
Components
  • BETA-2-MICROGLOBULIN
  • T-CELL SURFACE GLYCOPROTEIN CD1B
KeywordsGLYCOPROTEIN / LIPID / GMM / CD1B / MHC / ANTIGEN PRESENTATION
Function / homology
Function and homology information


: / : / : / : / : / negative regulation of receptor binding / endogenous lipid antigen binding / exogenous lipid antigen binding / antigen processing and presentation, endogenous lipid antigen via MHC class Ib / lipopeptide binding ...: / : / : / : / : / negative regulation of receptor binding / endogenous lipid antigen binding / exogenous lipid antigen binding / antigen processing and presentation, endogenous lipid antigen via MHC class Ib / lipopeptide binding / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / retina homeostasis / positive regulation of protein binding / regulation of membrane depolarization / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / Endosomal/Vacuolar pathway / T cell mediated cytotoxicity / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / regulation of iron ion transport / cellular response to iron(III) ion / negative regulation of iron ion transport / negative regulation of forebrain neuron differentiation / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / iron ion transport / peptide antigen assembly with MHC class I protein complex / ER to Golgi transport vesicle membrane / regulation of erythrocyte differentiation / response to molecule of bacterial origin / HFE-transferrin receptor complex / MHC class I peptide loading complex / transferrin transport / cellular response to iron ion / negative regulation of receptor-mediated endocytosis / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / MHC class I protein complex / peptide antigen assembly with MHC class II protein complex / negative regulation of neurogenesis / cellular response to nicotine / MHC class II protein complex / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of T cell mediated cytotoxicity / specific granule lumen / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / peptide antigen binding / phagocytic vesicle membrane / recycling endosome membrane / positive regulation of T cell activation / negative regulation of epithelial cell proliferation / Interferon gamma signaling / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Modulation by Mtb of host immune system / sensory perception of smell / tertiary granule lumen / positive regulation of cellular senescence / MHC class II protein complex binding / T cell differentiation in thymus / DAP12 signaling / antimicrobial humoral immune response mediated by antimicrobial peptide / late endosome membrane / negative regulation of neuron projection development / antibacterial humoral response / protein refolding / ER-Phagosome pathway / cellular response to lipopolysaccharide / early endosome membrane / amyloid fibril formation / protein homotetramerization / defense response to Gram-negative bacterium / intracellular iron ion homeostasis / adaptive immune response / learning or memory / endosome membrane / defense response to Gram-positive bacterium / immune response / endoplasmic reticulum lumen / Amyloid fiber formation / Golgi membrane / external side of plasma membrane / innate immune response / lysosomal membrane / focal adhesion / Neutrophil degranulation / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / cell surface / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / : / extracellular exosome / extracellular region / membrane / identical protein binding / plasma membrane / cytosol
Similarity search - Function
MHC-I family domain / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : / Immunoglobulin/major histocompatibility complex, conserved site ...MHC-I family domain / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
GLUCOSE MONOMYCOLATE / Beta-2-microglobulin / T-cell surface glycoprotein CD1b / Beta-2-microglobulin
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.1 Å
AuthorsBatuwangala, T. / Shepherd, D. / Gadola, S.D. / Gibson, K.J.C. / Zaccai, N.R. / Besra, G.S. / Cerundolo, V. / Jones, E.Y.
CitationJournal: J Immunol. / Year: 2004
Title: The crystal structure of human CD1b with a bound bacterial glycolipid.
Authors: Batuwangala, T. / Shepherd, D. / Gadola, S.D. / Gibson, K.J. / Zaccai, N.R. / Fersht, A.R. / Besra, G.S. / Cerundolo, V. / Jones, E.Y.
History
DepositionOct 16, 2003Deposition site: PDBE / Processing site: PDBE
Revision 1.0Oct 30, 2003Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 9, 2019Group: Data collection / Database references / Other / Category: citation / citation_author / pdbx_database_status
Item: _citation.journal_abbrev / _citation.journal_id_ASTM ..._citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.title / _citation_author.name / _pdbx_database_status.status_code_sf
Revision 1.4Dec 13, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.5Nov 20, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature
Remark 700 SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN ... SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: T-CELL SURFACE GLYCOPROTEIN CD1B
B: BETA-2-MICROGLOBULIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,0153
Polymers44,9682
Non-polymers1,0481
Water1,63991
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)96.974, 96.974, 114.834
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121

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Components

#1: Protein T-CELL SURFACE GLYCOPROTEIN CD1B / CD1B ANTIGEN


Mass: 33088.215 Da / Num. of mol.: 1 / Fragment: FRAGMENT: RESIDUES 18-295
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Plasmid: PET23D / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21 / References: UniProt: P29016
#2: Protein BETA-2-MICROGLOBULIN / HDCMA22P


Mass: 11879.356 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Plasmid: PET23D / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21 / References: UniProt: P01884, UniProt: P61769*PLUS
#3: Chemical ChemComp-GMM / GLUCOSE MONOMYCOLATE / 6-O-[(23Z,33Z)-3-HYDROXY-2-OCTYLDOPENTACONTA-23,33-DIENOYL]-ALPHA-D-IDOPYRANOSE


Mass: 1047.702 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C66H126O8
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 91 / 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: 2

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Sample preparation

CrystalDensity Matthews: 3.5 Å3/Da / Density % sol: 67 % / Description: WEISSENBERG METHOD
Crystal growpH: 5.6
Details: 0.1M SODIUM CITRATE PH 5.6, 0.5M AMMONIUM SULFATE, 0.5M LITHIUM SULFATE
Crystal grow
*PLUS
Temperature: 20 ℃ / pH: 6.5 / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails (eV)Chemical formula
17.5 mg/mlprotein1drop
220 mMTris-Cl1droppH6.5
325 mM1dropNaCl
42 mMEDTA1drop
5100 mMsodium citrate1reservoirpH5.6
60.20-1.25 Mammonium sulfate1reservoir
70.20-0.75 M1reservoirLi2SO4

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-4 / Wavelength: 1.01
DetectorType: ADSC CCD / Detector: CCD / Date: Nov 15, 2002 / Details: MIRRORS
RadiationMonochromator: SILICON CRYSTAL / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.01 Å / Relative weight: 1
ReflectionResolution: 3.1→20 Å / Num. obs: 11697 / % possible obs: 99.9 % / Observed criterion σ(I): 1 / Redundancy: 12.8 % / Rmerge(I) obs: 0.077 / Net I/σ(I): 34.9
Reflection shellResolution: 3.1→3.21 Å / Rmerge(I) obs: 0.604 / Mean I/σ(I) obs: 5.7 / % possible all: 100
Reflection
*PLUS
Highest resolution: 3.1 Å / Lowest resolution: 20 Å / Num. measured all: 150075 / Rmerge(I) obs: 0.077
Reflection shell
*PLUS
% possible obs: 100 % / Rmerge(I) obs: 0.604 / Mean I/σ(I) obs: 5.7

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Processing

Software
NameVersionClassification
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1GZQ

1gzq


Resolution: 3.1→19.9 Å / Rfactor Rfree error: 0.01 / Data cutoff high absF: 1353771.84 / Isotropic thermal model: GROUP / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.29 800 6.8 %RANDOM
Rwork0.236 ---
obs0.236 11687 100 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 28.6 Å2 / ksol: 0.194067 e/Å3
Displacement parametersBiso mean: 87 Å2
Baniso -1Baniso -2Baniso -3
1-4.68 Å215.28 Å20 Å2
2--4.68 Å20 Å2
3----9.36 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.52 Å0.38 Å
Luzzati d res low-5 Å
Luzzati sigma a0.65 Å0.51 Å
Refinement stepCycle: LAST / Resolution: 3.1→19.9 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3011 0 74 91 3176
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.01
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_deg2
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d25.7
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.9
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it2.362
X-RAY DIFFRACTIONc_mcangle_it4.22.5
X-RAY DIFFRACTIONc_scbond_it2.22
X-RAY DIFFRACTIONc_scangle_it3.912.5
LS refinement shellResolution: 3.1→3.29 Å / Rfactor Rfree error: 0.041 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.431 109 5.7 %
Rwork0.351 1812 -
obs--100 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMLIPID_37.TOP
X-RAY DIFFRACTION3LIPID_37.PARAMWATER_REP.TOP
Refinement
*PLUS
Rfactor Rfree: 0.291 / Rfactor Rwork: 0.233
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.009
X-RAY DIFFRACTIONc_angle_deg2.11
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg25.7
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg1.9

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