Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	CTSB
Human P-Site:	S216
P-Site Sequence:	KICEPGYSPTYKQDK
UniProt:	P07858
Intern. Prot. ID:	IPI00295741

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSB	P07858	S216	KICEPGYSPTYKQDK	100 / 9 AA	38
Phosphosite 1:	CTSB	P07858	Y215	SKICEPGYSPTYKQD	100 / 8 AA	38
Phosphosite 2:	CTSB	P07858	Y219	EPGYSPTYKQDKHYG	100 / 6 AA	38
Phosphosite 3:	LGALS4	P56470	Y9	AYVPAPGYQPTYNPT	75 / 8 AA	36
Phosphosite 4:	GTPBP6	O43824	Y313	KVDLVPGYSPTEPNV	100 / 6 AA	45
Phosphosite 5:	DONSON	Q9NYP3	S9	ALSVPGYSPGFRKPP	62 / 8 AA	63
Phosphosite 6:	POLR2A	P24928	Y1947	YSPTSPGYSPTSPTY	100 / 6 AA	217
Phosphosite 7:	POLR2A	P24928	S1948	SPTSPGYSPTSPTYS	100 / 6 AA	217
Phosphosite 8:	FLG	P20930	T167	ERKGYSPTHREEEYG	71 / 7 AA	435
Phosphosite 9:	FLG	P20930	S165	KKERKGYSPTHREEE	71 / 7 AA	435
Phosphosite 10:	Autotaxin	Q13822	T494	VFVGYGPTFKYKTKV	71 / 7 AA	99
Phosphosite 11:	THPO	P40225	Y292	PPNLQPGYSPSPTHP	71 / 7 AA	38
Phosphosite 12:	POLR2A	P24928	S1562	SGFSPGYSPAWSPTP	71 / 7 AA	217
Phosphosite 13:	TEX15	Q9BXT5	S786	NIFRPGFSPTADSLA	83 / 6 AA	315
Phosphosite 14:	THPO	P40225	S293	PNLQPGYSPSPTHPP	71 / 7 AA	38
Phosphosite 15:	GTF3C2	Q8WUA4	S901	PTRRPGFSPTSHRLL	83 / 6 AA	101
Phosphosite 16:	VGLL1	Q99990	Y146	TSSLEPGYSHPFPAR	62 / 8 AA	29
Phosphosite 17:	POLR2A	P24928	Y1561	ASGFSPGYSPAWSPT	71 / 7 AA	217
Phosphosite 18:	ELMOD3	Q96FG2	S27	ERLSAGYSPSYDKDK	62 / 8 AA	43
Phosphosite 19:	SH2D7	A6NKC9	S393	RAPHPGASPTYSPWV	85 / 7 AA	50
Phosphosite 20:	NEURL4	Q96JN8	S212	LPPEPGFSPPTPIPT	83 / 6 AA	167