5DZN image
Entry Detail
PDB ID:
5DZN
Keywords:
Title:
human T-cell immunoglobulin and mucin domain protein 4
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2015-09-25
Release Date:
2015-11-25
Method Details:
Experimental Method:
Resolution:
2.30 Å
R-Value Free:
0.23
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:T-cell immunoglobulin and mucin domain-containing protein 4
Chain IDs:A, B, C, D, E, F, G, H
Chain Length:114
Number of Molecules:8
Biological Source:Homo sapiens
Primary Citation
TIM-1 acts a dual-attachment receptor for Ebolavirus by interacting directly with viral GP and the PS on the viral envelope.
Protein Cell 6 814 824 (2015)
PMID: 26487564 DOI: 10.1007/s13238-015-0220-y

Abstact

Ebolavirus can cause hemorrhagic fever in humans with a mortality rate of 50%-90%. Currently, no approved vaccines and antiviral therapies are available. Human TIM1 is considered as an attachment factor for EBOV, enhancing viral infection through interaction with PS located on the viral envelope. However, reasons underlying the preferable usage of hTIM-1, but not other PS binding receptors by filovirus, remain unknown. We firstly demonstrated a direct interaction between hTIM-1 and EBOV GP in vitro and determined the crystal structures of the Ig V domains of hTIM-1 and hTIM-4. The binding region in hTIM-1 to EBOV GP was mapped by chimeras and mutation assays, which were designed based on structural analysis. Pseudovirion infection assays performed using hTIM-1 and its homologs as well as point mutants verified the location of the GP binding site and the importance of EBOV GP-hTIM-1 interaction in EBOV cellular entry.

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Primary Citation of related structures