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:	S257
P-Site Sequence:	RNQASCGSCYSFASM
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	S257	RNQASCGSCYSFASM	100 / 9 AA	52
Phosphosite 1:	KRT17	Q04695	S59	LGGSSYSSCYSFGSG	66 / 9 AA	48
Phosphosite 2:	CTSC	P53634	S254	SPVRNQASCGSCYSF	100 / 6 AA	52
Phosphosite 3:	ZNF768	Q9H5H4	Y382	CTECGKCYSQNSSLR	83 / 6 AA	60
Phosphosite 4:	ATP13A5	Q4VNC0	Y793	RGEGGSCYHFAMSGK	83 / 6 AA	137
Phosphosite 5:	MDFI	Q99750	S191	LDCATCGSCSSEDSC	75 / 8 AA	25
Phosphosite 6:	ATP13A5	Q4VNC0	S791	TPRGEGGSCYHFAMS	83 / 6 AA	137
Phosphosite 7:	MPTX	A8MV57	S109	PPKEMCDSCYSGSLL	83 / 6 AA	15
Phosphosite 8:	KRT17	Q04695	S62	SSYSSCYSFGSGGGY	100 / 5 AA	48
Phosphosite 9:	MPTX	A8MV57	Y111	KEMCDSCYSGSLLNR	83 / 6 AA	15
Phosphosite 10:	KRT17	Q04695	Y61	GSSYSSCYSFGSGGG	71 / 7 AA	48
Phosphosite 11:	PGGT1B	P53609	Y272	NKPVDTCYSFWVGAT	66 / 6 AA	42
Phosphosite 12:	ZNF527	Q8NB42	S255	GDAFSCYSFFTQPQR	100 / 5 AA	67
Phosphosite 13:	ZNF527	Q8NB42	Y254	CGDAFSCYSFFTQPQ	100 / 5 AA	67
Phosphosite 14:	CIAPIN1	Q6FI81	Y278	KSACGNCYLGDAFRC	80 / 5 AA	34
Phosphosite 15:	BCCIP	Q9P287	Y217	NKPCGKCYFYLLISK	57 / 7 AA	36
Phosphosite 16:	POM121L12	Q8N7R1	S285	FWEATTPSCGSCSRV	83 / 6 AA	33
Phosphosite 17:	MTMR3	Q13615	S1173	EPSRVCKSCYSSLHP	83 / 6 AA	134
Phosphosite 18:	MTMR3	Q13615	Y1175	SRVCKSCYSSLHPTS	83 / 6 AA	134
Phosphosite 19:	KRTAP13-3	Q3SY46	S29	PGSSCGSSYPSNLVY	83 / 6 AA	19
Phosphosite 20:	FOXO1A	Q12778	S406	MQQTPCYSFAPPNTS	80 / 5 AA	70