Fig. 1.
Schematic showing the genomic regions generating domains of TCR chains before (Top) or after (Middle) TCR gene rearrangement, and the resulting protein products (Bottom). CDR1 and CDR2 are shown as purple boxes. CDR3 takes sequences from V, D, or J genomic regions (as color-coded) and untemplated sequences (red boxes). TCRα genes have no D segments.