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- PDB-6d04: Cryo-EM structure of a Plasmodium vivax invasion complex essentia... -

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Basic information

Entry
Database: PDB / ID: 6d04
TitleCryo-EM structure of a Plasmodium vivax invasion complex essential for entry into human reticulocytes; two molecules of parasite ligand, subclass 1.
Components
  • Reticulocyte binding protein 2, putative
  • Serotransferrin
  • Transferrin receptor protein 1
KeywordsCELL INVASION / malaria / Plasmodium vivax / reticulocyte / invasion
Function / homology
Function and homology information


transferrin receptor activity / postsynaptic recycling endosome membrane / transferrin transport / negative regulation of mitochondrial fusion / iron chaperone activity / Transferrin endocytosis and recycling / transferrin receptor binding / positive regulation of isotype switching / basal part of cell / response to copper ion ...transferrin receptor activity / postsynaptic recycling endosome membrane / transferrin transport / negative regulation of mitochondrial fusion / iron chaperone activity / Transferrin endocytosis and recycling / transferrin receptor binding / positive regulation of isotype switching / basal part of cell / response to copper ion / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / response to iron ion / response to manganese ion / RND1 GTPase cycle / RND2 GTPase cycle / positive regulation of cell motility / RHOB GTPase cycle / Golgi Associated Vesicle Biogenesis / RHOC GTPase cycle / RHOJ GTPase cycle / RHOQ GTPase cycle / CDC42 GTPase cycle / RHOH GTPase cycle / endocytic vesicle / RHOG GTPase cycle / RHOA GTPase cycle / regulation of postsynaptic membrane neurotransmitter receptor levels / RAC2 GTPase cycle / RAC3 GTPase cycle / positive regulation of bone resorption / transport across blood-brain barrier / positive regulation of phosphorylation / response to retinoic acid / positive regulation of T cell proliferation / clathrin-coated pit / positive regulation of B cell proliferation / response to nutrient / RAC1 GTPase cycle / Hsp70 protein binding / ERK1 and ERK2 cascade / osteoclast differentiation / cellular response to leukemia inhibitory factor / ferric iron binding / basal plasma membrane / actin filament organization / acute-phase response / cellular response to iron ion / Post-translational protein phosphorylation / positive regulation of protein-containing complex assembly / Iron uptake and transport / clathrin-coated endocytic vesicle membrane / regulation of iron ion transport / ferrous iron binding / HFE-transferrin receptor complex / positive regulation of peptidyl-serine phosphorylation / regulation of protein stability / recycling endosome / receptor internalization / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of protein localization to nucleus / recycling endosome membrane / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / double-stranded RNA binding / antibacterial humoral response / late endosome / cellular response to xenobiotic stimulus / Cargo recognition for clathrin-mediated endocytosis / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / extracellular vesicle / melanosome / Platelet degranulation / Clathrin-mediated endocytosis / positive regulation of NF-kappaB transcription factor activity / iron ion transport / virus receptor activity / cytoplasmic vesicle / secretory granule lumen / basolateral plasma membrane / positive regulation of canonical NF-kappaB signal transduction / blood microparticle / vesicle / intracellular iron ion homeostasis / transmembrane transporter binding / early endosome / response to hypoxia / endosome / intracellular signal transduction / endosome membrane / positive regulation of protein phosphorylation / apical plasma membrane / endoplasmic reticulum lumen / external side of plasma membrane / intracellular membrane-bounded organelle / positive regulation of gene expression / protein-containing complex binding / negative regulation of apoptotic process / protein kinase binding / positive regulation of DNA-templated transcription / perinuclear region of cytoplasm
Similarity search - Function
NBD94 domain / Nucleotide-Binding Domain 94 of RH / Transferrin receptor protein 1/2, PA domain / Serotransferrin, mammalian / Transferrin receptor-like, dimerisation domain / Transferrin receptor-like, dimerisation domain / Transferrin receptor-like, dimerisation domain superfamily / Glutamate carboxypeptidase 2-like / Transferrin receptor-like dimerisation domain / Glucose Oxidase; domain 1 - #30 ...NBD94 domain / Nucleotide-Binding Domain 94 of RH / Transferrin receptor protein 1/2, PA domain / Serotransferrin, mammalian / Transferrin receptor-like, dimerisation domain / Transferrin receptor-like, dimerisation domain / Transferrin receptor-like, dimerisation domain superfamily / Glutamate carboxypeptidase 2-like / Transferrin receptor-like dimerisation domain / Glucose Oxidase; domain 1 - #30 / PA domain superfamily / PA domain / PA domain / Transcription Elongation Factor S-II; Chain A / Transferrin-like domain signature 2. / Transferrin family, iron binding site / Transferrin-like domain signature 1. / Transferrin-like domain signature 3. / Transferrin-like domain / Transferrin / Transferrin / Transferrin-like domain profile. / Transferrin / Glucose Oxidase; domain 1 / Peptidase M28 / Peptidase family M28 / Zn peptidases / Aminopeptidase / Periplasmic binding protein-like II / 3-Layer(bba) Sandwich / D-Maltodextrin-Binding Protein; domain 2 / Up-down Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
CARBONATE ION / : / Reticulocyte binding protein 2, putative / Transferrin receptor protein 1 / Serotransferrin
Similarity search - Component
Biological speciesHomo sapiens (human)
Plasmodium vivax (malaria parasite P. vivax)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.74 Å
AuthorsGruszczyk, J. / Huang, R.K. / Hong, C. / Yu, Z. / Tham, W.H.
CitationJournal: Nature / Year: 2018
Title: Cryo-EM structure of an essential Plasmodium vivax invasion complex.
Authors: Jakub Gruszczyk / Rick K Huang / Li-Jin Chan / Sébastien Menant / Chuan Hong / James M Murphy / Yee-Foong Mok / Michael D W Griffin / Richard D Pearson / Wilson Wong / Alan F Cowman / ...Authors: Jakub Gruszczyk / Rick K Huang / Li-Jin Chan / Sébastien Menant / Chuan Hong / James M Murphy / Yee-Foong Mok / Michael D W Griffin / Richard D Pearson / Wilson Wong / Alan F Cowman / Zhiheng Yu / Wai-Hong Tham /
Abstract: Plasmodium vivax is the most widely distributed malaria parasite that infects humans. P. vivax invades reticulocytes exclusively, and successful entry depends on specific interactions between the P. ...Plasmodium vivax is the most widely distributed malaria parasite that infects humans. P. vivax invades reticulocytes exclusively, and successful entry depends on specific interactions between the P. vivax reticulocyte-binding protein 2b (PvRBP2b) and transferrin receptor 1 (TfR1). TfR1-deficient erythroid cells are refractory to invasion by P. vivax, and anti-PvRBP2b monoclonal antibodies inhibit reticulocyte binding and block P. vivax invasion in field isolates. Here we report a high-resolution cryo-electron microscopy structure of a ternary complex of PvRBP2b bound to human TfR1 and transferrin, at 3.7 Å resolution. Mutational analyses show that PvRBP2b residues involved in complex formation are conserved; this suggests that antigens could be designed that act across P. vivax strains. Functional analyses of TfR1 highlight how P. vivax hijacks TfR1, an essential housekeeping protein, by binding to sites that govern host specificity, without affecting its cellular function of transporting iron. Crystal and solution structures of PvRBP2b in complex with antibody fragments characterize the inhibitory epitopes. Our results establish a structural framework for understanding how P. vivax reticulocyte-binding protein engages its receptor and the molecular mechanism of inhibitory monoclonal antibodies, providing important information for the design of novel vaccine candidates.
History
DepositionApr 10, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 20, 2018Provider: repository / Type: Initial release
Revision 1.1Jun 27, 2018Group: Data collection / Database references / Category: citation / Item: _citation.pdbx_database_id_DOI / _citation.title
Revision 1.2Jul 11, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_id_ISSN / _citation.journal_volume ..._citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / em_entity_assembly / 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 / 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.type_symbol / _chem_comp.name / _chem_comp.type / _em_entity_assembly.entity_id_list / _pdbx_entity_nonpoly.entity_id / _pdbx_entity_nonpoly.name / _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 / _struct_conn.conn_type_id / _struct_conn.id / _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_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_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_atom_id / _struct_conn.ptnr2_label_comp_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 23, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update

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Structure visualization

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  • Deposited structure unit
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Assembly

Deposited unit
A: Transferrin receptor protein 1
B: Transferrin receptor protein 1
C: Serotransferrin
D: Serotransferrin
E: Reticulocyte binding protein 2, putative
F: Reticulocyte binding protein 2, putative
hetero molecules


Theoretical massNumber of molelcules
Total (without water)499,76126
Polymers495,7866
Non-polymers3,97520
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 3 types, 6 molecules ABCDEF

#1: Protein Transferrin receptor protein 1 / Trfr / T9 / p90


Mass: 73940.477 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TFRC / Cell line (production host): Sf21 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P02786
#2: Protein Serotransferrin / Transferrin / Beta-1 metal-binding globulin / Siderophilin


Mass: 77153.906 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P02787
#3: Protein Reticulocyte binding protein 2, putative


Mass: 96798.477 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Plasmodium vivax (malaria parasite P. vivax)
Strain: Salvador I / Gene: PVX_094255 / Production host: Escherichia coli (E. coli) / References: UniProt: A5K736

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Sugars , 2 types, 10 molecules

#4: 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.: 6
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: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 3 types, 10 molecules

#5: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#7: Chemical
ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Fe
#8: Chemical
ChemComp-CO3 / CARBONATE ION


Mass: 60.009 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: CO3

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Details

Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: ternary complex between human transferrin receptor 1, transferrin and Plasmodium vivax reticulocyte-binding protein 2b
Type: COMPLEX / Details: two molecules of parasite ligand, subclass 1 / Entity ID: #1-#3 / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
Buffer component
IDConc.FormulaBuffer-ID
120 mMNaHEPES1
2100 mMNaCl1
350 mMNaHC)31
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingAverage exposure time: 15 sec. / Electron dose: 80 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1
Image scansSampling size: 5 µm / Movie frames/image: 50

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Processing

EM software
IDNameVersionCategory
2SerialEM3.4image acquisition
4CTFFIND4CTF correction
9PHENIX1.12-2829model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.74 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 287253 / Symmetry type: POINT

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