We performed real-time quantitative reverse transcription PCR (qRT-PCR) and Western blotting in 5 ER+ and 6 ER– BC cell lines along with 2 breast epithelial cell lines that are commonly used as a normal breast cell model to determine the difference in the expression of LINC00992 RNA and GT3-INCP protein across these cell lines. Here, ESR1 is linked to breast cancer.