1mpu

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1mpu, resolution 2.50Å ()
Ligands:
Related: 1hyr, 1kcg, 1hq8, 1jsk
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



Crystal Structure of the free human NKG2D immunoreceptor

Publication Abstract from PubMed

Engagement of diverse protein ligands (MIC-A/B, ULBP, Rae-1, or H60) by NKG2D immunoreceptors mediates elimination of tumorigenic or virally infected cells by natural killer and T cells. Three previous NKG2D-ligand complex structures show the homodimeric receptor interacting with the monomeric ligands in similar 2:1 complexes, with an equivalent surface on each NKG2D monomer binding intimately to a total of six distinct ligand surfaces. Here, the crystal structure of free human NKG2D and in silico and in vitro alanine-scanning mutagenesis analyses of the complex interfaces indicate that NKG2D recognition degeneracy is not explained by a classical induced-fit mechanism. Rather, the divergent ligands appear to utilize different strategies to interact with structurally conserved elements of the consensus NKG2D binding site.

Symmetry recognizing asymmetry: analysis of the interactions between the C-type lectin-like immunoreceptor NKG2D and MHC class I-like ligands., McFarland BJ, Kortemme T, Yu SF, Baker D, Strong RK, Structure. 2003 Apr;11(4):411-22. PMID:12679019

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

About this Structure

1mpu is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

  • McFarland BJ, Kortemme T, Yu SF, Baker D, Strong RK. Symmetry recognizing asymmetry: analysis of the interactions between the C-type lectin-like immunoreceptor NKG2D and MHC class I-like ligands. Structure. 2003 Apr;11(4):411-22. PMID:12679019

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