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- EMDB-41418: Cryo-EM structure of HLA-B*73:01 bound to a 9mer peptide and two Fabs -
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Open data
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Basic information
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Title | Cryo-EM structure of HLA-B*73:01 bound to a 9mer peptide and two Fabs | |||||||||
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![]() | HLA / MHC / FAB / IMMUNE SYSTEM | |||||||||
Function / homology | ![]() : / : / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / negative regulation of receptor binding / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / lumenal side of endoplasmic reticulum membrane / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent ...: / : / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / negative regulation of receptor binding / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / lumenal side of endoplasmic reticulum membrane / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / negative regulation of forebrain neuron differentiation / regulation of erythrocyte differentiation / ER to Golgi transport vesicle membrane / regulation of iron ion transport / response to molecule of bacterial origin / MHC class I peptide loading complex / HFE-transferrin receptor complex / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / MHC class I protein complex / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / recycling endosome membrane / phagocytic vesicle membrane / peptide antigen binding / positive regulation of cellular senescence / negative regulation of epithelial cell proliferation / negative regulation of neuron projection development / iron ion transport / early endosome membrane / T cell differentiation in thymus / protein refolding / protein homotetramerization / amyloid fibril formation / learning or memory / immune response / external side of plasma membrane / signaling receptor binding / Golgi apparatus / protein homodimerization activity / extracellular space / extracellular region / cytosol Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
![]() | Ross P / Adams EJ / Lodwick J / Zhao M / Slezak T / Kossiakoff A | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structure of HLA-B*73:01 bound to a 9mer peptide and two Fabs Authors: Ross P / Adams EJ | |||||||||
History |
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Structure visualization
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Downloads & links
-EMDB archive
Map data | ![]() | |||
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Header (meta data) | ![]() | |||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8tnjMC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.065 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
-Entire : Ternary complex of B.1 and B.8 Fabs with single-chain P2R-B2M-HLA...
Entire | Name: Ternary complex of B.1 and B.8 Fabs with single-chain P2R-B2M-HLA-B*73:01 |
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Components |
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-Supramolecule #1: Ternary complex of B.1 and B.8 Fabs with single-chain P2R-B2M-HLA...
Supramolecule | Name: Ternary complex of B.1 and B.8 Fabs with single-chain P2R-B2M-HLA-B*73:01 type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: 9mer peptide,Beta-2-microglobulin,MHC class I antigen chimera
Macromolecule | Name: 9mer peptide,Beta-2-microglobulin,MHC class I antigen chimera type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 49.165848 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: NRFLGDYVVG GGGSGGGGSG GGGSIQRTPK IQVYSRHPAE NGKSNFLNCY VSGFHPSDIE VDLLKNGERI EKVEHSDLSF SKDWSFYLL YYTEFTPTEK DEYACRVNHV TLSQPKIVKW DRDMGGGGSG GGGSGGGGSG GGGSGSHSMR YFHTSVSRPG R GEPRFITV ...String: NRFLGDYVVG GGGSGGGGSG GGGSIQRTPK IQVYSRHPAE NGKSNFLNCY VSGFHPSDIE VDLLKNGERI EKVEHSDLSF SKDWSFYLL YYTEFTPTEK DEYACRVNHV TLSQPKIVKW DRDMGGGGSG GGGSGGGGSG GGGSGSHSMR YFHTSVSRPG R GEPRFITV GYVDDTQFVR FDSDAASPRE EPRAPWIEQE GPEYWDRNTQ ICKAKAQTDR VGLRNLRGYY NQSEDGSHTW QT MYGCDMG PDGRLLRGYN QFAYDGKDYI ALNEDLRSWT AADTAAQITQ RKWEAARVAE QLRAYLEGEC VEWLRRHLEN GKE TLQRAD PPKTHVTHHP ISDHEATLRC WALGFYPAEI TLTWQRDGED QTQDTELVET RPAGDGTFQK WAAVVVPSGQ EQRY TCHVQ HEGLQEPLTL RWKPGGSGLE VLFQGPHHHH HHHH UniProtKB: Beta-2-microglobulin, MHC class I antigen |
-Macromolecule #2: B.8 Fab light chain
Macromolecule | Name: B.8 Fab light chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.523064 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: SDIQMTQSPS SLSASVGDRV TITCRASQSV SSAVAWYQQK PGKAPKLLIY SASSLYSGVP SRFSGSRSGT DFTLTISSLQ PEDFATYYC QQSWSAYPFT FGQGTKVEIK RTVAAPSVFI FPPSDSQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ ...String: SDIQMTQSPS SLSASVGDRV TITCRASQSV SSAVAWYQQK PGKAPKLLIY SASSLYSGVP SRFSGSRSGT DFTLTISSLQ PEDFATYYC QQSWSAYPFT FGQGTKVEIK RTVAAPSVFI FPPSDSQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ DSKDSTYSLS STLTLSKADY EKHKVYACEV THQGLSSPVT KSFNRGEC |
-Macromolecule #3: B.8 Fab heavy chain
Macromolecule | Name: B.8 Fab heavy chain / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 24.684623 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: EISEVQLVES GGGLVQPGGS LRLSCAASGF NVSSYSIHWV RQAPGKGLEW VASISPYSGY TYYADSVKGR FTISADTSKN TAYLQMNSL RAEDTAVYYC ARLIFYMWSS AMDYWGQGTL VTVSSASTKG PSVFPLAPSS KSTSGGTAAL GCLVKDYFPE P VTVSWNSG ...String: EISEVQLVES GGGLVQPGGS LRLSCAASGF NVSSYSIHWV RQAPGKGLEW VASISPYSGY TYYADSVKGR FTISADTSKN TAYLQMNSL RAEDTAVYYC ARLIFYMWSS AMDYWGQGTL VTVSSASTKG PSVFPLAPSS KSTSGGTAAL GCLVKDYFPE P VTVSWNSG ALTSGVHTFP AVLQSSGLYS LSSVVTVPSS SLGTQTYICN VNHKPSNTKV DKKVEPKSCD KTHT |
-Macromolecule #4: B.1 Fab heavy chain
Macromolecule | Name: B.1 Fab heavy chain / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 25.284029 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: EISEVQLVES GGGLVQPGGS LRLSCAASGF NVSYYSIHWV RQAPGKGLEW VASISPYSGS TSYADSVKGR FTISADTSKN TAYLQMNSL RAEDTAVYYC ARYSYGNSWS YDPYYGAMDY WGQGTLVTVS SASTKGPSVF PLAPSSKSTS GGTAALGCLV K DYFPEPVT ...String: EISEVQLVES GGGLVQPGGS LRLSCAASGF NVSYYSIHWV RQAPGKGLEW VASISPYSGS TSYADSVKGR FTISADTSKN TAYLQMNSL RAEDTAVYYC ARYSYGNSWS YDPYYGAMDY WGQGTLVTVS SASTKGPSVF PLAPSSKSTS GGTAALGCLV K DYFPEPVT VSWNSGALTS GVHTFPAVLQ SSGLYSLSSV VTVPSSSLGT QTYICNVNHK PSNTKVDKKV EPKSCDKTHT |
-Macromolecule #5: B.1 Fab light chain
Macromolecule | Name: B.1 Fab light chain / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.478066 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: SDIQMTQSPS SLSASVGDRV TITCRASQSV SSAVAWYQQK PGKAPKLLIY SASSLYSGVP SRFSGSRSGT DFTLTISSLQ PEDFATYYC QQYYWAPITF GQGTKVEIKR TVAAPSVFIF PPSDSQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD ...String: SDIQMTQSPS SLSASVGDRV TITCRASQSV SSAVAWYQQK PGKAPKLLIY SASSLYSGVP SRFSGSRSGT DFTLTISSLQ PEDFATYYC QQYYWAPITF GQGTKVEIKR TVAAPSVFIF PPSDSQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD SKDSTYSLSS TLTLSKADYE KHKVYACEVT HQGLSSPVTK SFNRGEC |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.6 mg/mL | ||||||||||||
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Buffer | pH: 7.2 Component:
Details: 10 mM HEPES 150 mM NaCl 0.02% sodium azide pH 7.2 | ||||||||||||
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: AIR Details: 10 seconds at 20 watts using Solarus 950 Plasma Cleaner System (Gatan) | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281.15 K / Instrument: FEI VITROBOT MARK IV | ||||||||||||
Details | This sample was mono-disperse |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 81000 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Details: Masked / Number images used: 502247 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
-Atomic model buiding 1
Initial model |
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Refinement | Space: REAL / Protocol: AB INITIO MODEL / Overall B value: 86.65 / Target criteria: EMRinger | ||||||
Output model | ![]() PDB-8tnj: |