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- PDB-6d64: Crystal Structure of Human CD1b in Complex with POPC -

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Basic information

Entry
Database: PDB / ID: 6d64
TitleCrystal Structure of Human CD1b in Complex with POPC
Components
  • Beta-2-microglobulin
  • T-cell surface glycoprotein CD1b
KeywordsIMMUNE SYSTEM / BC8B / CD1 / CD1b / PC / POPC / phosphatidylcholine
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 / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport ...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 / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / 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 / MHC class II protein complex / negative regulation of forebrain neuron differentiation / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / ER to Golgi transport vesicle membrane / 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 / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / MHC class I protein complex / positive regulation of T cell activation / peptide antigen binding / 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 / specific granule lumen / phagocytic vesicle membrane / recycling endosome membrane / Interferon gamma signaling / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / positive regulation of cellular senescence / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / negative regulation of neuron projection development / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / amyloid fibril formation / adaptive immune response / intracellular iron ion homeostasis / learning or memory / endosome membrane / immune response / endoplasmic reticulum lumen / Amyloid fiber formation / Golgi membrane / lysosomal membrane / external side of plasma 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 / 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
tetracosyl octadecanoate / IODIDE ION / Chem-POV / T-cell surface glycoprotein CD1b / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.7 Å
AuthorsShahine, A.E. / Rossjohn, J.
CitationJournal: Nat Commun / Year: 2019
Title: A T-cell receptor escape channel allows broad T-cell response to CD1b and membrane phospholipids.
Authors: Shahine, A. / Reinink, P. / Reijneveld, J.F. / Gras, S. / Holzheimer, M. / Cheng, T.Y. / Minnaard, A.J. / Altman, J.D. / Lenz, S. / Prandi, J. / Kubler-Kielb, J. / Moody, D.B. / Rossjohn, J. / Van Rhijn, I.
History
DepositionApr 20, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 16, 2019Provider: repository / Type: Initial release
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / 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 / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / pdbx_validate_close_contact / 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.occupancy / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_unobs_or_zero_occ_atoms.label_asym_id / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_seq_id_1 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_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_comp_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 4, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag
Revision 2.2Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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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)50,42820
Polymers45,5052
Non-polymers4,92318
Water9,692538
1


  • Idetical with deposited unit
  • defined by software
  • Evidence: gel filtration, Co-purification of heterodimer
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8000 Å2
ΔGint-25 kcal/mol
Surface area20250 Å2
MethodPISA
Unit cell
Length a, b, c (Å)57.981, 80.032, 92.766
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 / Cell (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 / Cell (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P61769

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Sugars , 3 types, 3 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-Glycam 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
[]{[(4+1)][b-D-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 alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)][alpha-L-fucopyranose-(1- ...alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 716.682 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-3[DGlcpNAcb1-4][LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,4,3/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2-1-2/a3-b1_a4-c1_a6-d1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#5: Polysaccharide alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-mannopyranose-(1-3)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 910.823 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3DManpb1-4DGlcpNAcb1-4[DManpa1-3]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/3,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1a_1-5][a1122h-1b_1-5]/1-2-1-3-2/a3-b1_a4-c1_c4-d1_d3-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-D-Manp]{}[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}}}}}LINUCSPDB-CARE

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Non-polymers , 7 types, 553 molecules

#6: Chemical ChemComp-POV / (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate / POPC


Mass: 760.076 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C42H82NO8P / Comment: phospholipid*YM
#7: Chemical ChemComp-CUY / tetracosyl octadecanoate


Mass: 621.115 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C42H84O2
#8: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Cl
#9: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C2H6O2
#10: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#11: Chemical ChemComp-IOD / IODIDE ION


Mass: 126.904 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: I
#12: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 538 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.38 Å3/Da / Density % sol: 48.29 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / Details: PEG 3350, 0.2M Sodium Iodide, Ethylene Glycol

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.9537 Å
DetectorType: ADSC QUANTUM 210r / Detector: CCD / Date: Jun 27, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 1.7→46.95 Å / Num. obs: 48206 / % possible obs: 99.9 % / Redundancy: 14.7 % / CC1/2: 0.999 / Rpim(I) all: 0.0044 / Net I/σ(I): 17.7
Reflection shellResolution: 1.7→1.73 Å / Redundancy: 14.8 % / Mean I/σ(I) obs: 1.9 / Num. unique obs: 2488 / CC1/2: 0.675 / Rpim(I) all: 0.0629 / % possible all: 99.8

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Processing

Software
NameVersionClassification
PHENIX1.10.1_2155refinement
PDB_EXTRACT3.24data extraction
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5WL1

5wl1


Resolution: 1.7→40.13 Å / SU ML: 0.2 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 21.38
RfactorNum. reflection% reflection
Rfree0.211 2417 5.02 %
Rwork0.179 --
obs0.18 48140 99.9 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso mean: 27.99 Å2
Refinement stepCycle: LAST / Resolution: 1.7→40.13 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3006 0 301 538 3845
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0083497
X-RAY DIFFRACTIONf_angle_d1.0534773
X-RAY DIFFRACTIONf_dihedral_angle_d17.9322079
X-RAY DIFFRACTIONf_chiral_restr0.057539
X-RAY DIFFRACTIONf_plane_restr0.006587
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.7-1.73470.36951320.26152638X-RAY DIFFRACTION100
1.7347-1.77240.32441360.26792640X-RAY DIFFRACTION100
1.7724-1.81370.25511270.23912672X-RAY DIFFRACTION100
1.8137-1.8590.30041380.24582659X-RAY DIFFRACTION100
1.859-1.90930.29711310.22162663X-RAY DIFFRACTION100
1.9093-1.96550.24751380.20352648X-RAY DIFFRACTION100
1.9655-2.02890.25331370.20362662X-RAY DIFFRACTION100
2.0289-2.10140.21441550.17742669X-RAY DIFFRACTION100
2.1014-2.18550.18361340.18792671X-RAY DIFFRACTION100
2.1855-2.2850.20921530.18262662X-RAY DIFFRACTION100
2.285-2.40550.22071360.18292695X-RAY DIFFRACTION100
2.4055-2.55610.23691630.19042675X-RAY DIFFRACTION100
2.5561-2.75350.21291370.18152698X-RAY DIFFRACTION100
2.7535-3.03050.22081530.18342704X-RAY DIFFRACTION100
3.0305-3.46880.18291510.15812712X-RAY DIFFRACTION100
3.4688-4.36940.17381510.14112766X-RAY DIFFRACTION100
4.3694-40.14160.17211450.15882889X-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)
11.4175-0.0496-0.48721.3816-0.30562.54540.06720.02130.0006-0.0603-0.0597-0.2182-0.05580.1959-0.01030.0729-0.00990.01070.11990.0250.1495-1.118-13.20279.5498
20.88380.066-0.47390.83090.40685.1531-0.02410.1216-0.217-0.04310.0131-0.11560.53990.20920.01560.12880.00990.00890.1438-0.0120.1615-5.4243-24.72335.6249
34.8762-2.28450.96291.6238-0.56070.46360.09810.12670.0084-0.1162-0.05520.0207-0.01490.0113-0.02750.1530.01010.0180.1227-0.04850.1256-32.82942.243616.872
43.43511.5292-0.10436.31213.91517.3077-0.05130.5654-0.147-0.1388-0.09950.17770.0817-0.11850.14460.14610.0887-0.01040.24320.01660.1598-17.78951.39680.5749
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1CHAIN 'A' AND (RESID 4 THROUGH 109 )
2X-RAY DIFFRACTION2CHAIN 'A' AND (RESID 110 THROUGH 175 )
3X-RAY DIFFRACTION3CHAIN 'A' AND (RESID 176 THROUGH 282 )
4X-RAY DIFFRACTION4CHAIN 'B' AND (RESID 3 THROUGH 13 )

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