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Related Experiment Videos

The three-dimensional solution structure of RANTES

C W Chung1, R M Cooke, A E Proudfoot

  • 1Department of Biomolecular Structure, Glaxo Research and Development Ltd., Hertfordshire, U.K.

Biochemistry
|July 25, 1995
PubMed
Summary
This summary is machine-generated.

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The solution structure of regulated on activation, normal T-cell expressed and secreted (RANTES) reveals a Greek key beta-sheet and C-terminal helix. This dimeric structure is similar to other chemokines like MIP-1 beta.

Area of Science:

  • Biochemistry and Structural Biology
  • Molecular Biology
  • Immunology

Background:

  • Chemokines are crucial signaling proteins involved in immune responses.
  • Understanding chemokine structure is vital for developing targeted therapies.

Purpose of the Study:

  • To determine the three-dimensional solution structure of RANTES.
  • To elucidate the structural basis for RANTES function and interactions.

Main Methods:

  • Nuclear Magnetic Resonance (NMR) spectroscopy for structural determination.
  • Utilized 2D homonuclear and 3D heteronuclear spectra for assignments.
  • Employed distance geometry and simulated annealing for 3D structure calculation.

Main Results:

Related Experiment Videos

  • Established backbone and side-chain assignments for RANTES.
  • Identified regular secondary structure elements including a three-stranded antiparallel beta-sheet and a C-terminal helix.
  • Calculated high-resolution structures with low RMSD values, indicating structural accuracy.

    • Conclusions:

    • The RANTES monomer features a Greek key beta-sheet motif and a C-terminal helix, consistent with other chemokines.
    • The overall RANTES dimer structure closely resembles that of MIP-1 beta.
    • Structural insights provide a foundation for understanding RANTES-mediated biological processes.