Table 2.

A summary of the HER2 fusion status

Sample ID	Fusion Type(RNA)	DNA structure	5' fusion partner status			HER2 status
GC196	ZNF207_exon2 /HER2_exon18	ZNF207_intron2/HER2_intron17	ZNF207	mRNA expression	High	mRNA Expression	High
				Gene copy	N Ter AMP	Gene Copy	C Ter AMP
				Protein level	-	Protein level	IHC 3+
431-9540474 T	MDK_exon4 -/HER2_exon11	MDK_intron4/HER2_intron10	MDK	mRNA expression	High	mRNA Expression	High
				Gene copy	tAMP	Gene Copy	tAMP
				Protein level	-	Protein level	-
GC334	NOS2_exon2 /HER2_exon2	NOS2_intron2/HER2_5’UTR	NOS2	mRNA expression	Low	mRNA Expression	High
				Gene copy	N Ter AMP	Gene Copy	tAMP
				Protein level	-	Protein level	IHC 3+

N Ter AMP: N terminal amplification.

C Ter AMP: C terminal amplification.

tAMP: total amplification.