Nucleotide sequence coding for variable regions of β chains of human T lymphocyte receptors, corresponding peptide segments and the diagnostic and therapeutic uses

An isolated antibody, or an antigen binding fragment thereof, directed against an antigenic determinant of a Vβ peptide encoded by a nucleic acid sequence selected from the group consisting of:

• nucleotides 54 to 395 of SEQ ID NO:
• 3,
• nucleotides 18 to 329 of SEQ ID NO:
• 4, and
• nucleotides 28 to 366 of SEQ ID NO:
• 5,
• wherein the antibody, or antigen binding fragment thereof, specifically binds to the Vβ peptide.