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- PDB-8glh: Crystal Structure of Human CD1b in Complex with Endogenous PC C40:5 -

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Basic information

Entry
Database: PDB / ID: 8glh
TitleCrystal Structure of Human CD1b in Complex with Endogenous PC C40:5
Components
  • Beta-2-microglobulin
  • T-cell surface glycoprotein CD1b
KeywordsIMMUNE SYSTEM / Antigen Presentation / Lipid / CD1b / phospholipid
Function / homology
Function and homology information


exogenous lipid antigen binding / antigen processing and presentation, endogenous lipid antigen via MHC class Ib / lipopeptide binding / endogenous lipid antigen binding / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / : / : / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression ...exogenous lipid antigen binding / antigen processing and presentation, endogenous lipid antigen via MHC class Ib / lipopeptide binding / endogenous lipid antigen binding / antigen processing and presentation, exogenous lipid antigen via MHC class Ib / : / : / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / peptide antigen assembly with MHC class II protein complex / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / MHC class II protein complex / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / regulation of iron ion transport / MHC class I peptide loading complex / response to molecule of bacterial origin / HFE-transferrin receptor complex / T cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / antigen processing and presentation of exogenous peptide antigen via MHC class II / MHC class I protein complex / positive regulation of immune response / peptide antigen binding / negative regulation of neurogenesis / positive regulation of T cell mediated cytotoxicity / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of T cell activation / cellular response to nicotine / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / Interferon gamma signaling / MHC class II protein complex binding / positive regulation of protein binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / negative regulation of neuron projection development / iron ion transport / T cell differentiation in thymus / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / adaptive immune response / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / endosome membrane / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / Golgi membrane / external side of plasma membrane / lysosomal membrane / focal adhesion / intracellular membrane-bounded organelle / 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 space / extracellular exosome / extracellular region / identical protein binding / membrane / plasma membrane / 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
(11E)-hexadec-11-enoic acid / Chem-3IY / IODIDE ION / T-cell surface glycoprotein CD1b / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.83 Å
AuthorsFarquhar, R. / Rossjohn, J. / Shahine, A.
Funding support Australia, 1items
OrganizationGrant numberCountry
Australian Research Council (ARC)DE210101031 Australia
CitationJournal: Cell / Year: 2023
Title: CD1 lipidomes reveal lipid-binding motifs and size-based antigen-display mechanisms.
Authors: Huang, S. / Shahine, A. / Cheng, T.Y. / Chen, Y.L. / Ng, S.W. / Balaji, G.R. / Farquhar, R. / Gras, S. / Hardman, C.S. / Altman, J.D. / Tahiri, N. / Minnaard, A.J. / Ogg, G.S. / Mayfield, J. ...Authors: Huang, S. / Shahine, A. / Cheng, T.Y. / Chen, Y.L. / Ng, S.W. / Balaji, G.R. / Farquhar, R. / Gras, S. / Hardman, C.S. / Altman, J.D. / Tahiri, N. / Minnaard, A.J. / Ogg, G.S. / Mayfield, J.A. / Rossjohn, J. / Moody, D.B.
History
DepositionMar 22, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 20, 2023Provider: repository / Type: Initial release
Revision 1.1May 1, 2024Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
Revision 1.2Nov 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: T-cell surface glycoprotein CD1b
B: Beta-2-microglobulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,35914
Polymers45,5052
Non-polymers3,85412
Water7,242402
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration, surface plasmon resonance
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6520 Å2
ΔGint29 kcal/mol
Surface area19630 Å2
MethodPISA
Unit cell
Length a, b, c (Å)57.447, 77.049, 91.445
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein T-cell surface glycoprotein CD1b


Mass: 33530.691 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD1B / Plasmid: pFastBac / Cell line (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P29016
#2: Protein Beta-2-microglobulin


Mass: 11974.456 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M, CDABP0092, HDCMA22P / Plasmid: pFastBac / Cell line (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P61769

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Sugars , 2 types, 2 molecules

#3: Polysaccharide alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1203.105 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4[LFucpa1-3][LFucpa1-6]DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/4,7,6/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5][a1122h-1b_1-5][a1122h-1a_1-5]/1-2-1-3-4-4-2/a3-b1_a4-c1_a6-g1_c4-d1_d3-e1_d6-f1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{}}}[(6+1)][a-L-Fucp]{}}LINUCSPDB-CARE
#4: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 878.823 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4[LFucpa1-3][LFucpa1-6]DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5][a1122h-1b_1-5]/1-2-1-3-2/a3-b1_a4-c1_a6-e1_c4-d1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}[(6+1)][a-L-Fucp]{}}LINUCSPDB-CARE

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Non-polymers , 6 types, 412 molecules

#5: Chemical ChemComp-IOD / IODIDE ION


Mass: 126.904 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: I
#6: Chemical ChemComp-3IV / (11E)-hexadec-11-enoic acid


Mass: 254.408 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C16H30O2 / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-3IY / [(2~{R})-1-dodecanoyloxy-3-[oxidanyl-[2-(trimethyl-$l^{4}-azanyl)ethoxy]phosphoryl]oxy-propan-2-yl] (8~{Z},11~{Z},14~{Z},24~{Z},27~{Z})-triaconta-8,11,14,24,27-pentaenoate


Mass: 865.233 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C50H91NO8P / Feature type: SUBJECT OF INVESTIGATION
#8: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H6O2
#9: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#10: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 402 / 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: 2.22 Å3/Da / Density % sol: 44.69 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop
Details: 24% PEG3350, 0.2 M sodium iodide, 2% ethylene glycol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.9537 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: May 10, 2019
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 1.83→41.13 Å / Num. obs: 36495 / % possible obs: 99.7 % / Redundancy: 7.3 % / CC1/2: 0.99 / Rpim(I) all: 0.037 / Net I/σ(I): 19.5
Reflection shellResolution: 1.83→1.87 Å / Redundancy: 7.1 % / Mean I/σ(I) obs: 2.3 / Num. unique obs: 2143 / CC1/2: 0.78 / Rpim(I) all: 0.469 / % possible all: 95.7

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Processing

Software
NameVersionClassification
XDSdata reduction
Aimlessdata scaling
PHENIXphasing
PHENIX1.14_3260refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 6D64

6d64


Resolution: 1.83→41.13 Å / SU ML: 0.23 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 21.13 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.221 1820 5 %
Rwork0.166 --
obs0.169 36431 99.8 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 30.57 Å2
Refinement stepCycle: LAST / Resolution: 1.83→41.13 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2982 0 238 402 3622
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.8302-1.87970.34891250.26852567X-RAY DIFFRACTION97
1.8797-1.9350.26951610.2182587X-RAY DIFFRACTION100
1.935-1.99740.24141450.19252639X-RAY DIFFRACTION100
1.9974-2.06880.23391350.17712633X-RAY DIFFRACTION100
2.0688-2.15160.25741600.17452602X-RAY DIFFRACTION100
2.1516-2.24960.21261510.17572644X-RAY DIFFRACTION100
2.2496-2.36810.23981460.17082631X-RAY DIFFRACTION100
2.3681-2.51650.221270.1752667X-RAY DIFFRACTION100
2.5165-2.71080.23081230.16982685X-RAY DIFFRACTION100
2.7108-2.98350.23541380.17452663X-RAY DIFFRACTION100
2.9835-3.4150.22291370.15972706X-RAY DIFFRACTION100
3.415-4.30180.16951390.13562720X-RAY DIFFRACTION100
4.3018-41.130.22091330.15972867X-RAY DIFFRACTION100
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)
11.18540.04990.22281.7658-0.5982.6087-0.03920.0827-0.0896-0.08780.0408-0.17520.10990.16860.00450.10580.00130.00770.14270.01630.1885-1.1401-13.33598.5055
20.8399-0.24250.8831.30190.02645.14730.07320.1465-0.3001-0.1191-0.0434-0.02960.74630.2273-0.03220.20380.00250.00620.18380.00760.2781-4.4779-24.23245.1531
34.3444-1.71341.65751.7025-0.63262.0332-0.0587-0.0151-0.1114-0.07840.0210.1412-0.1052-0.08460.04150.1578-0.01070.00820.1177-0.01590.1361-32.06972.930516.3833
42.1015-0.4102-0.54633.0510.26611.77110.16730.11580.2217-0.1184-0.1678-0.0791-0.4677-0.05540.00580.2340.00440.00350.14380.02050.132-13.21667.83024.7297
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1CHAIN 'A' AND (RESID 4 THROUGH 118 )
2X-RAY DIFFRACTION2CHAIN 'A' AND (RESID 119 THROUGH 175 )
3X-RAY DIFFRACTION3CHAIN 'A' AND (RESID 176 THROUGH 283 )
4X-RAY DIFFRACTION4CHAIN 'B' AND (RESID 1 THROUGH 98 )

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