Figure 1From: A new model for rheumatoid arthritis?Peptide X is an as yet unidentified peptide from glucose-6-phosphate isomerase (GPI). The T cell receptor (TCR) that is specific for ribonuclease (Rnase) 41-61 restricted to I-Ak manifests striking cross-reactivity to GPI peptide X presented by I-Ag7.Back to article page