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- PDB-6xng: MHC-like protein complex structure -

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Basic information

Entry
Database: PDB / ID: 6xng
TitleMHC-like protein complex structure
Components
  • Antigen-presenting glycoprotein CD1d1
  • Beta-2-microglobulin
  • NKT Valpha14 (Mouse)-2C12 TCR
  • NKT Vbeta8.2 (Mouse)-2C12 TCR
KeywordsLIPID BINDING PROTEIN / MHC-like protein / CD1d1 antigen presenting molecule / lipid binding protein complex
Function / homology
Function and homology information


regulation of immature T cell proliferation in thymus / positive regulation of NK T cell activation / positive regulation of NK T cell differentiation / NK T cell differentiation / endogenous lipid antigen binding / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / positive thymic T cell selection / positive regulation of macrophage activation / Endosomal/Vacuolar pathway / DAP12 interactions ...regulation of immature T cell proliferation in thymus / positive regulation of NK T cell activation / positive regulation of NK T cell differentiation / NK T cell differentiation / endogenous lipid antigen binding / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / positive thymic T cell selection / positive regulation of macrophage activation / Endosomal/Vacuolar pathway / DAP12 interactions / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / ER-Phagosome pathway / DAP12 signaling / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / antigen processing and presentation / positive regulation of interleukin-4 production / regulation of immune response / cellular defense response / T cell receptor binding / Neutrophil degranulation / positive regulation of interleukin-2 production / cellular response to iron(III) ion / 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 / regulation of iron ion transport / regulation of erythrocyte differentiation / HFE-transferrin receptor complex / response to molecule of bacterial origin / MHC class I peptide loading complex / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / MHC class I protein complex / positive regulation of receptor-mediated endocytosis / negative regulation of neurogenesis / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / multicellular organismal-level iron ion homeostasis / positive regulation of type II interferon production / phagocytic vesicle membrane / negative regulation of epithelial cell proliferation / sensory perception of smell / positive regulation of cellular senescence / late endosome / T cell differentiation in thymus / negative regulation of neuron projection development / protein refolding / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / early endosome / lysosome / endosome membrane / innate immune response / lysosomal membrane / external side of plasma membrane / structural molecule activity / Golgi apparatus / protein homodimerization activity / extracellular space / cytosol
Similarity search - Function
MHC-I family domain / 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 ...MHC-I family domain / 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
Similarity search - Domain/homology
Chem-V8P / Beta-2-microglobulin / Antigen-presenting glycoprotein CD1d1
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.79 Å
AuthorsThirunavukkarasu, P. / Le Nours, J. / Rossjohn, J.
Funding support Australia, 1items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia) Australia
CitationJournal: Nature / Year: 2021
Title: Host immunomodulatory lipids created by symbionts from dietary amino acids.
Authors: Oh, S.F. / Praveena, T. / Song, H. / Yoo, J.S. / Jung, D.J. / Erturk-Hasdemir, D. / Hwang, Y.S. / Lee, C.C. / Le Nours, J. / Kim, H. / Lee, J. / Blumberg, R.S. / Rossjohn, J. / Park, S.B. / Kasper, D.L.
History
DepositionJul 2, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 10, 2021Provider: repository / Type: Initial release
Revision 1.1Dec 1, 2021Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Dec 22, 2021Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3Oct 18, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.4Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Antigen-presenting glycoprotein CD1d1
B: Beta-2-microglobulin
C: NKT Valpha14 (Mouse)-2C12 TCR
D: NKT Vbeta8.2 (Mouse)-2C12 TCR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)99,0879
Polymers96,2164
Non-polymers2,8715
Water2,612145
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area11100 Å2
ΔGint-26 kcal/mol
Surface area38560 Å2
Unit cell
Length a, b, c (Å)58.338, 80.661, 242.797
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 4 types, 4 molecules ABCD

#1: Protein Antigen-presenting glycoprotein CD1d1


Mass: 34662.012 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Cd1d1, Cd1.1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P11609
#2: Protein Beta-2-microglobulin


Mass: 11660.350 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: B2m / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P01887
#3: Protein NKT Valpha14 (Mouse)-2C12 TCR


Mass: 22779.180 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Escherichia coli (E. coli)
#4: Protein NKT Vbeta8.2 (Mouse)-2C12 TCR


Mass: 27113.982 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Escherichia coli (E. coli)

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Sugars , 2 types, 3 molecules

#5: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#6: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}}LINUCSPDB-CARE

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Non-polymers , 2 types, 147 molecules

#7: Chemical ChemComp-V8P / (3R)-N-[(2S,3R)-1-(alpha-D-galactopyranosyloxy)-3-hydroxyheptadecan-2-yl]-3-hydroxyheptadecanamide


Mass: 718.057 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C40H79NO9 / Feature type: SUBJECT OF INVESTIGATION
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 145 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
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: 2.97 Å3/Da / Density % sol: 58.57 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 5 / Details: 18-20% PEG 3350, 8% Tacsimate pH 5.0

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.9537 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Sep 18, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 2.79→48.56 Å / Num. obs: 29106 / % possible obs: 99.2 % / Redundancy: 9.2 % / Rpim(I) all: 0.042 / Net I/σ(I): 10.8
Reflection shellResolution: 2.8→2.9 Å / Num. unique obs: 4070 / Rpim(I) all: 0.283

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Processing

Software
NameVersionClassification
SCALAdata scaling
BUSTER2.10.3refinement
PDB_EXTRACT3.25data extraction
XDSdata reduction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6BNL

6bnl


Resolution: 2.79→47.33 Å / Cor.coef. Fo:Fc: 0.905 / Cor.coef. Fo:Fc free: 0.864 / SU R Cruickshank DPI: 1.147 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 1.388 / SU Rfree Blow DPI: 0.372 / SU Rfree Cruickshank DPI: 0.375
RfactorNum. reflection% reflectionSelection details
Rfree0.277 1440 4.96 %RANDOM
Rwork0.203 ---
obs0.206 29043 99.1 %-
Displacement parametersBiso max: 152.94 Å2 / Biso mean: 73.3 Å2 / Biso min: 37.93 Å2
Baniso -1Baniso -2Baniso -3
1--14.4563 Å20 Å20 Å2
2---12.6708 Å20 Å2
3---27.1271 Å2
Refine analyzeLuzzati coordinate error obs: 0.38 Å
Refinement stepCycle: final / Resolution: 2.79→47.33 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6543 0 155 145 6843
Biso mean--92.07 60.38 -
Num. residues----838
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d3094SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes1166HARMONIC5
X-RAY DIFFRACTIONt_it6892HARMONIC20
X-RAY DIFFRACTIONt_nbd
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion915SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact7310SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d6892HARMONIC20.008
X-RAY DIFFRACTIONt_angle_deg9406HARMONIC21.02
X-RAY DIFFRACTIONt_omega_torsion2.72
X-RAY DIFFRACTIONt_other_torsion3.06
LS refinement shellResolution: 2.79→2.82 Å / Rfactor Rfree error: 0 / Total num. of bins used: 50
RfactorNum. reflection% reflection
Rfree0.4228 31 5.34 %
Rwork0.2765 550 -
all0.2854 581 -
obs--83.19 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.3719-0.28480.82970-0.25764.0066-0.1885-0.00290.3162-0.0875-0.0871-0.1398-0.62830.34240.27560.087-0.0816-0.143-0.20810.0208-0.058416.194336.773291.5184
23.2938-0.5576-0.25490.8481-0.46776.1429-0.1702-0.22890.28210.0648-0.07340.2826-0.2459-0.78990.24360.18540.0568-0.1271-0.2040.0108-0.17894.280839.1817103.77
31.9308-1.01893.03171.4324-1.40596.425-0.13660.29860.07420.1118-0.1221-0.1207-0.09120.35980.2587-0.2602-0.05620.0774-0.15060.0674-0.1247-4.339549.935331.329
40.61690.25662.20250.8821-1.34164.34650.2956-0.094-0.0135-0.0878-0.0909-0.13080.9343-0.0865-0.20460.07410.02670.1169-0.1889-0.0003-0.0604-16.479735.149834.5644
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1{ A|* }A6 - 299
2X-RAY DIFFRACTION2{ B|* }B1 - 99
3X-RAY DIFFRACTION3{ C|* }C1 - 205
4X-RAY DIFFRACTION4{ D|* }D1 - 241

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