BUB1B and colon carcinoma: Interestingly, a weak immunoreactivity was observed in normal colon mucosa after staining with antibodies raised versus BUBR1 and TTK, whereas colon carcinoma samples showed a strong immunoreactivity that significantly correlated with HMGA1 staining (p = 0.006 for BUBR1 and p < 0.001 for TTK).