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- PDB-1gzp: CD1b in complex with GM2 ganglioside -

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Basic information

Entry
Database: PDB / ID: 1gzp
TitleCD1b in complex with GM2 ganglioside
Components
  • B2-MICROGLOBULIN
  • T-CELL SURFACE GLYCOPROTEIN CD1B
KeywordsGLYCOPROTEIN / LIPID / GANGLIOSIDE / 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 / antigen processing and presentation, exogenous lipid antigen via MHC class Ib ...: / : / : / : / : / negative regulation of receptor binding / endogenous lipid antigen binding / exogenous lipid antigen binding / antigen processing and presentation, endogenous lipid antigen via MHC class Ib / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / lipopeptide binding / 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 / transferrin transport / MHC class I peptide loading complex / 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 / positive regulation of cellular senescence / sensory perception of smell / tertiary granule lumen / MHC class II protein complex binding / DAP12 signaling / T cell differentiation in thymus / 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
DODECANE / Chem-GM2 / DOCOSANE / 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: 2.8 Å
AuthorsGadola, S.D. / Zaccai, N.R. / Harlos, K. / Shepherd, D. / Ritter, G. / Schmidt, R.R. / Jones, E.Y. / Cerundolo, V.
CitationJournal: Nat. Immunol. / Year: 2002
Title: Structure of human CD1b with bound ligands at 2.3 A, a maze for alkyl chains.
Authors: Gadola, S.D. / Zaccai, N.R. / Harlos, K. / Shepherd, D. / Castro-Palomino, J.C. / Ritter, G. / Schmidt, R.R. / Jones, E.Y. / Cerundolo, V.
History
DepositionMay 24, 2002Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 31, 2002Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 28, 2018Group: Database references / Source and taxonomy / Category: citation / entity_src_gen
Item: _citation.journal_abbrev / _citation.page_last ..._citation.journal_abbrev / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.title / _entity_src_gen.pdbx_host_org_cell_line / _entity_src_gen.pdbx_host_org_scientific_name / _entity_src_gen.pdbx_host_org_strain / _entity_src_gen.pdbx_host_org_vector
Revision 1.4May 22, 2019Group: Data collection / Experimental preparation / Category: exptl_crystal_grow / Item: _exptl_crystal_grow.temp
Revision 1.5Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf
Revision 1.6Nov 13, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification
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

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Assembly

Deposited unit
A: T-CELL SURFACE GLYCOPROTEIN CD1B
B: B2-MICROGLOBULIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,1935
Polymers44,9682
Non-polymers1,2253
Water72140
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)87.527, 176.885, 75.250
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221

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Components

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Protein , 2 types, 2 molecules AB

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


Mass: 33088.215 Da / Num. of mol.: 1 / Fragment: RESIDUES 18-295
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Plasmid: PET23D / Production host: Escherichia coli BL21 (bacteria) / References: UniProt: P29016
#2: Protein B2-MICROGLOBULIN


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 BL21 (bacteria) / References: UniProt: P01884, UniProt: P61769*PLUS

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Non-polymers , 4 types, 43 molecules

#3: Chemical ChemComp-GM2 / N-[(1S,2S)-2-HYDROXY-1-({[(2R,3R,4S,5S,6R)-3,4,5-TRIHYDROXY-6-(HYDROXYMETHYL)TETRAHYDRO-2H-PYRAN-2-YL]OXY}METHYL)OCTADECYL]OCTADECANAMIDE


Mass: 744.137 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C43H85NO8
#4: Chemical ChemComp-D12 / DODECANE


Mass: 170.335 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H26
#5: Chemical ChemComp-TWT / DOCOSANE


Mass: 310.601 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C22H46
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 40 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY
Sequence detailsRESIDUES GLYCINE A278 AND PROLINE A279 ARE THE STARTING RESIDUES OF A BIRA TAG ...RESIDUES GLYCINE A278 AND PROLINE A279 ARE THE STARTING RESIDUES OF A BIRA TAG (GPGSGGGLNDIFEAQKIEWH) WHICH WAS LOCATED AT THE C-TERMINUS OF THE RECOMBINANT CD1B HEAVY CHAIN.

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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: 3.24 Å3/Da / Density % sol: 64 %
Crystal growTemperature: 293 K / pH: 7.1
Details: 20 DEGREE C 2UL OF PROTEIN + 1UL OF MOTHER LIQUOR 0.2M LITHIUM NITRATE 20% W/V POLYETHYLENE GLYCOL 3350, PH 7.1
Crystal grow
*PLUS
Temperature: 20 ℃ / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails (eV)
10.2 Mlithium nitrate1reservoir
220 %(w/v)PEG33501reservoirpH7.1
35 mg/mlprotein1drop

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-2 / Wavelength: 0.93
DetectorType: ADSC CCD / Detector: CCD / Date: Oct 15, 2001
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.93 Å / Relative weight: 1
ReflectionResolution: 2.8→100 Å / Num. obs: 89500 / % possible obs: 87.4 % / Observed criterion σ(I): -0.5 / Redundancy: 6.8 % / Biso Wilson estimate: 95.2 Å2 / Rmerge(I) obs: 0.103 / Net I/σ(I): 13.7
Reflection shellResolution: 2.8→2.9 Å / Rmerge(I) obs: 0.325 / Mean I/σ(I) obs: 1.8 / % possible all: 71.1
Reflection
*PLUS
Lowest resolution: 100 Å / Num. obs: 13203 / % possible obs: 88.8 % / Num. measured all: 89500
Reflection shell
*PLUS
Highest resolution: 2.8 Å / Lowest resolution: 2.91 Å / % possible obs: 71.1 %

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Processing

Software
NameVersionClassification
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1CD1

1cd1


Resolution: 2.8→34.78 Å / Rfactor Rfree error: 0.012 / Data cutoff high absF: 355814.88 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.273 535 4.1 %RANDOM
Rwork0.225 ---
obs0.225 12918 87.4 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 14.0445 Å2 / ksol: 0.282575 e/Å3
Displacement parametersBiso mean: 50.2 Å2
Baniso -1Baniso -2Baniso -3
1-2.43 Å20 Å20 Å2
2---6.93 Å20 Å2
3---4.5 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.48 Å0.37 Å
Luzzati d res low-5 Å
Luzzati sigma a0.7 Å0.44 Å
Refinement stepCycle: LAST / Resolution: 2.8→34.78 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2992 0 86 40 3118
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.012
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_deg1.6
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d26.5
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.46
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it2.351.5
X-RAY DIFFRACTIONc_mcangle_it3.92
X-RAY DIFFRACTIONc_scbond_it4.012
X-RAY DIFFRACTIONc_scangle_it5.722.5
LS refinement shellResolution: 2.8→2.98 Å / Rfactor Rfree error: 0.051 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.428 70 4.3 %
Rwork0.367 1543 -
obs--67.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION3GM2_11.PARAMGM2_11.TOP
Refinement
*PLUS
Lowest resolution: 100 Å / Rfactor Rfree: 0.274 / Rfactor Rwork: 0.223
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg1.62
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg26.5
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg1.46
LS refinement shell
*PLUS
Lowest resolution: 2.91 Å

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