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:	CTSC
Human P-Site:	S254
P-Site Sequence:	SPVRNQASCGSCYSF
UniProt:	P53634
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSC	P53634	S254	SPVRNQASCGSCYSF	100 / 9 AA	52
Phosphosite 1:	C8A	P07357	S83	GDIWDQASCSSSTTC	55 / 9 AA	65
Phosphosite 2:	SVEP1	Q4LDE5	T1397	NPCRNQATCVDELNS	83 / 6 AA	390
Phosphosite 3:	Putative uncharacterized protein FLJ32756	Q96M85	S110	AHPQNQASCSSQEVA	75 / 8 AA	20
Phosphosite 4:	CTSC	P53634	S257	RNQASCGSCYSFASM	100 / 6 AA	52
Phosphosite 5:	C21orf13	O95447	S57	DYSRSQCSCGSLSSQ	75 / 8 AA	77
Phosphosite 6:	FLJ40925	Q8N7K9	S287	ISSRIQASSGSQLSS	75 / 8 AA	60
Phosphosite 7:	PHF12	Q96QT6	S58	GRATNHDSCDSCKEG	62 / 8 AA	110
Phosphosite 8:	CHRM5	P08912	S270	QRERNQASWSSSRRS	66 / 9 AA	60
Phosphosite 9:	SEC61B	P60468	S38	VRQRKNASCGTRSAG	62 / 8 AA	10
Phosphosite 10:	CENPT	Q96BT3	S126	QPSRQESSCGSLELQ	62 / 8 AA	60
Phosphosite 11:	RNF43	Q68DV7	Y248	SQLATRRYQASCRQA	83 / 6 AA	86
Phosphosite 12:	CENPT	Q96BT3	S125	VQPSRQESSCGSLEL	62 / 8 AA	60
Phosphosite 13:	MDFI	Q99750	S191	LDCATCGSCSSEDSC	83 / 6 AA	25
Phosphosite 14:	PHLDB2	Q86SQ0	S521	LPDADLASCGSLSQS	71 / 7 AA	142
Phosphosite 15:	RNF43	Q68DV7	S251	ATRRYQASCRQARGE	83 / 6 AA	86
Phosphosite 16:	C9orf131	Q5VYM1	S140	TPAPPQPSCGSEGLL	83 / 6 AA	118
Phosphosite 17:	MSSK1	Q9UPE1	S24	SSSSSQASCGPESSG	71 / 7 AA	59
Phosphosite 18:	NFU1	Q9UMS0	S209	VQLKLQGSCTSCPSS	55 / 9 AA	28
Phosphosite 19:	POM121L12	Q8N7R1	S285	FWEATTPSCGSCSRV	83 / 6 AA	33
Phosphosite 20:	RASGRP4	Q8TDF6	S616	STPAPHASCGSEENH	83 / 6 AA	75