Appendix 1—table 2. Overview of symbiont protein identification numbers in all sample types in this study, that is in gradient fractions XS - L and in non-enriched trophosome homogenate (Hom).

ID count: number of identified proteins. Numbers are based on four biological replicates for sulfur-rich samples and three biological replicates for sulfur-depleted samples. Note that not all proteins were included in statistical analyses (StAn; see Materials and methods for details). GF: gradient fractions.

	sulfur-rich trophosome					sulfur-depleted trophosome					total
	Hom	XS	S	M	L	Hom	XS	S	M	L
ID count	1151	1022	1296	1603	1722	1017	1099	1260	1605	1572	1946
ID count (Hom only)	1151					1017					1223
ID count (total all GF)		1821					1727				1898
ID count (total all sample types)	1867					1773					1946
Proteins in StAn		940	1081	1135	1134		1008	1091	1150	1143	1212
Proteins in StAn (total all GF)		1135					1151				1212