TRBC1 to asses TCR alpha/beta positive T-cell clonality on flow cytometry:
①
TRBC1-positive T cells <15% or >85% or a dominant TRBC1-dim peak
②
TRBC1-negative T cells 50%
③
TRBC1-positive T cells 55%
④
TRBC1-positive T cells 65%
⑤
TRBC1 has low sensitivity and low specificity for clonality evaluation