6H5I

Single Particle Cryo-EM map of human Transferrin receptor 1 - H-Ferritin complex.

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Cryo-EM structure of the human ferritin-transferrin receptor 1 complex.

Montemiglio, L.C., Testi, C., Ceci, P., Falvo, E., Pitea, M., Savino, C., Arcovito, A., Peruzzi, G., Baiocco, P., Mancia, F., Boffi, A., des Georges, A., Vallone, B.

(2019) Nat Commun 10: 1121-1121

  • DOI: 10.1038/s41467-019-09098-w
  • Primary Citation of Related Structures:  
    6GSR, 6H5I

  • PubMed Abstract: 

    • Human transferrin receptor 1 (CD71) guarantees iron supply by endocytosis upon binding of iron-loaded transferrin and ferritin. Arenaviruses and the malaria parasite exploit CD71 for cell invasion and epitopes on CD71 for interaction with transferrin ...

    Human transferrin receptor 1 (CD71) guarantees iron supply by endocytosis upon binding of iron-loaded transferrin and ferritin. Arenaviruses and the malaria parasite exploit CD71 for cell invasion and epitopes on CD71 for interaction with transferrin and pathogenic hosts were identified. Here, we provide the molecular basis of the CD71 ectodomain-human ferritin interaction by determining the 3.9 Å resolution single-particle cryo-electron microscopy structure of their complex and by validating our structural findings in a cellular context. The contact surfaces between the heavy-chain ferritin and CD71 largely overlap with arenaviruses and Plasmodium vivax binding regions in the apical part of the receptor ectodomain. Our data account for transferrin-independent binding of ferritin to CD71 and suggest that select pathogens may have adapted to enter cells by mimicking the ferritin access gate.

    Organizational Affiliation: 

    Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Scienze Biochimiche "A. Rossi Fanelli", Sapienza Università di Roma, P.le A. Moro 5, 00185, Rome, Italy. beatrice.vallone@uniroma1.it.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ferritin heavy chainAa, Ac, Ad, Ae, Af, Ag, Ah, Ai, Aj, Ak, Al, Am, An, Ao, Ap, Ar, As, At, Au, Av, Aw, Ax, Ay, Az172Homo sapiensMutation(s): 0 
Gene Names: FTH1, FTH, FTHL6, OK/SW-cl.84, PIG15
EC: 1.16.3.1
Find proteins for P02794 (Homo sapiens)
Explore P02794 
Go to UniProtKB:  P02794
NIH Common Fund Data Resources
PHAROS  P02794
GTEx  ENSG00000167996
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Transferrin receptor protein 1Ab, Aq640Homo sapiensMutation(s): 1 
Gene Names: TFRC
Find proteins for P02786 (Homo sapiens)
Explore P02786 
Go to UniProtKB:  P02786
NIH Common Fund Data Resources
PHAROS  P02786
GTEx  ENSG00000072274
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-03-27
    Type: Initial release
  • Version 1.1: 2019-12-18
    Changes: Other