Evidence map›Paper›PMID 19625641›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2009

Structural basis of the CD8 alpha beta/MHC class I interaction: focused recognition orients CD8 beta to a T cell proximal position.

Rui Wang, Kannan Natarajan, David H Margulies

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
3.2field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

67 citing papers in PubMed, 112 citations in OpenAlex.

  1. Review
  2. Review
  3. Design of solubly expressed miniaturized SMART MHCs.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Magnetic Bead-Based Isolation of CD8Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. IntracellularFrontiers in immunology · 2023
    Article
  17. Molecular Dynamics Simulations of Immune Receptors and Ligands.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  18. Article
  19. Article
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Rui WangMolecular Biology Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
Kannan Natarajan
David H Margulies
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

Molecular Genetic Analysis Of Lymphocyte FunctionZIAAI000394 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MARGULIES, DAVID · 2009 to 2025
$11.5M
Molecular Interactions Of Lymphoid Cell ReceptorsZIAAI000622 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MARGULIES, DAVID · 2009 to 2025
$11.0M
Molecular Interactions Of Lymphoid Cell ReceptorsZ01AI000622 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI MARGULIES, DAVID H. · 1992 to 2008
$3.2M
Intramural NIH HHS Z01 AI000622Intramural NIH HHS ZIA AI000394
6 · The paper itself

Abstract

In the immune system, B cells, dendritic cells, NK cells, and T lymphocytes all respond to signals received via ligand binding to receptors and coreceptors. Although the specificity of T cell recognition is determined by the interaction of T cell receptors with MHC/peptide complexes, the development of T cells in the thymus and their sensitivity to Ag are also dependent on coreceptor molecules CD8 (for MHC class I (MHCI)) and CD4 (for MHCII). The CD8alphabeta heterodimer is a potent coreceptor for T cell activation, but efforts to understand its function fully have been hampered by ignorance of the structural details of its interactions with MHCI. In this study we describe the structure of CD8alphabeta in complex with the murine MHCI molecule H-2D(d) at 2.6 A resolution. The focus of the CD8alphabeta interaction is the acidic loop (residues 222-228) of the alpha3 domain of H-2D(d). The beta subunit occupies a T cell membrane proximal position, defining the relative positions of the CD8alpha and CD8beta subunits. Unlike the CD8alphaalpha homodimer, CD8alphabeta does not contact the MHCI alpha(2)- or beta(2)-microglobulin domains. Movements of the CD8alpha CDR2 and CD8beta CDR1 and CDR2 loops as well as the flexibility of the H-2D(d) CD loop facilitate the monovalent interaction. The structure resolves inconclusive data on the topology of the CD8alphabeta/MHCI interaction, indicates that CD8beta is crucial in orienting the CD8alphabeta heterodimer, provides a framework for understanding the mechanistic role of CD8alphabeta in lymphoid cell signaling, and offers a tangible context for design of structurally altered coreceptors for tumor and viral immunotherapy.

Indexed as

Amino Acid SequenceAnimalsbeta 2-MicroglobulinCD8 AntigensCrystallizationDNA Mutational AnalysisH-2 AntigensHistocompatibility Antigen H-2DMiceMolecular Sequence DataProtein BindingProtein MultimerizationT-LymphocytesX-Ray Diffractionbeta 2-MicroglobulinCD8alpha antigenCD8alphabeta antigenCD8 AntigensCD8beta antigenH-2 AntigensHistocompatibility Antigen H-2D

Identifiers

PMID19625641
PMCPMC2782705
OpenAlexW2156224391

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.