Junctional amino acid of TCRBV sequences, obtained from CD4⁺CD57⁺ and CD4⁻CD57⁺ subpopulations prepared from the RA patients LOME, GEGU, MAGHI, and ROPI were deduced from nucleotide sequences and displayed as standard one-letter code. Only the last 3′ amino acids of the TCRBV segments and the first 5′ amino acids of TCRBJ chains are shown.