Table 3.

Copy number variation and protein expression of CCND1 and CTTN in ESCC samples

Case ID	CCND1		CTTN
	Copy number variation	Protein expression	Copy number variation	Protein expression
33T	Amplification	Strongly positive	Amplification	Strongly positive
39T	Gain	Positive	Gain	Strongly positive
44T	Normal	Negative	Normal	Strongly positive
57T	Gain	Strongly positive	Gain	Strongly positive
61T	Normal	Positive	Normal	Strongly positive
74T	Amplification	Strongly positive	Amplification	Strongly positive
79T	Amplification	NA	Amplification	Strongly positive
80T	Amplification	Strongly positive	Amplification	Strongly positive
97T	Gain	Negative	Gain	Strongly positive
TL0105	Normal	N/A	Normal	Strongly positive
TL0110	Normal	N/A	Normal	N/A
TL0122	Gain	N/A	Gain	Strongly positive
TL0123	Amplification	N/A	Amplification	N/A
TL0124	Amplification	N/A	Amplification	Strongly positive
TL0127	Amplification	N/A	Amplification	Strongly positive
TL0128	Amplification	N/A	Amplification	Strongly positive
TL0129	Normal	N/A	Normal	Strongly positive
TL0134	Amplification	Strongly positive	Amplification	Strongly positive
TL0140	Gain	Strongly positive	Amplification	Strongly positive

Abbreviations: N/A: not available