1TNR image
Deposition Date 1994-05-09
Release Date 1994-07-31
Last Version Date 2024-10-16
Entry Detail
PDB ID:
1TNR
Title:
CRYSTAL STRUCTURE OF THE SOLUBLE HUMAN 55 KD TNF RECEPTOR-HUMAN TNF-BETA COMPLEX: IMPLICATIONS FOR TNF RECEPTOR ACTIVATION
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.85 Å
R-Value Work:
0.16
R-Value Observed:
0.16
Space Group:
I 2 3
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:TUMOR NECROSIS FACTOR BETA
Gene (Uniprot):LTA
Chain IDs:A
Chain Length:144
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Molecule:TUMOR NECROSIS FACTOR RECEPTOR P55
Gene (Uniprot):TNFRSF1A
Chain IDs:B (auth: R)
Chain Length:139
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Crystal structure of the soluble human 55 kd TNF receptor-human TNF beta complex: implications for TNF receptor activation.
Cell(Cambridge,Mass.) 73 431 445 (1993)
PMID: 8387891 DOI: 10.1016/0092-8674(93)90132-a

Abstact

The X-ray crystal structure of the complex of the extracellular domain of the human 55 kd tumor necrosis factor (TNF) receptor with human TNF beta has been determined at 2.85 A resolution. The complex has three receptor molecules bound symmetrically to one TNF beta trimer. The receptor fragment, a very elongated end to end assembly of four similar folding domains, binds in the groove between two adjacent TNF beta subunits. The structure of the complex defines the orientation of the ligand with respect to the cell membrane and provides a model for TNF receptor activation. The novel fold of the TNF receptor structure is likely to be representative of the nerve growth factor (NGF)/TNF receptor family as a whole.

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Primary Citation of related structures