Table 4. Proteins of the phage Str01 detected by mass spectrometry.

	no	NCBI Identical Protein Group	phage protein accession	phage protein defintion	score	% coverage	emPAI
A	1	23526059	APZ81895	major capsid protein	7931	78.1	6.35
	2	92043013	APZ81902	tail protein	410	34.2	3.37
	3	5668030	APZ81903	hypothetical protein	184	55.3	3.1
	4	23526069	APZ81888	portal protein	769	39.0	1.7
	5	92043017	APZ81889	tail protein	519	34.0	1.45
B	6	137081518	APZ81883	minor capsid protein	113	35.2	0.98
	7	23526073	APZ81882	holin	150	43.2	0.94
	8	14467	APZ81898	nucleotide-binding protein	135	22.1	0.91
	9	23526076	APZ81901	terminase small subunit	139	18.2	0.58
	10	43836092	APZ81891	N-acetylmuramoyl-L-alanine amidase	134	10.8	0.39
	11	23526079	APZ81875	minor capsid protein	112	6.8	0.21
	12	137081495	APZ81886	tail tape measure protein	183	4.9	0.15

Proteins are divided into ‘A’—“high abundance” and ‘B’—“low abundance” groups based on emPAI (Exponentially Modified Protein Abundance Index) parameter. Hit proteins were filtered based on: ions significance threshold (< 1e-5), ions expect cut-off (< 1e-5), overall protein score (> = 100) and emPAI (> = 0.15).