Positive Samples: HepG2, A-549, Mouse testis, Mouse thymus, Rat lung, Rat testis Immunogen sequence: NLAEPMEQNP PQQQRLALHN PLPKAKPGTH LPQGPSSRTH PEPLAGRHFN LAPLGRRRVQ SQWASTRGGH KERPTVMLFP FRNLGSPTQV ISKPESKEEH. TRF1 is a negative regulator of telomere l