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:	CTSA
Human P-Site:	S51
P-Site Sequence:	QPSFRQYSGYLKGSG
UniProt:	P10619
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSA	P10619	S51	QPSFRQYSGYLKGSG	100 / 9 AA	54
Phosphosite 1:	CTSA	P10619	Y50	KQPSFRQYSGYLKGS	100 / 8 AA	54
Phosphosite 2:	CTSA	P10619	Y53	SFRQYSGYLKGSGSK	100 / 7 AA	54
Phosphosite 3:	S100A7L2	Q5SY68	Y20	IVAMFRQYSGDDGRM	100 / 6 AA	11
Phosphosite 4:	TTMA	A6NKL6	S157	GFFFRIFSGYLHSDK	75 / 8 AA	64
Phosphosite 5:	S100A7L2	Q5SY68	S21	VAMFRQYSGDDGRMD	100 / 6 AA	11
Phosphosite 6:	LPO	P22079	S71	TPTSRQLSEYLKHAK	75 / 8 AA	80
Phosphosite 7:	ARHGEF1	Q92888	S485	LMKRRQESGYLIEEI	85 / 7 AA	102
Phosphosite 8:	CCNT1	O60563	S688	FEFVRPYSDYLNPRS	62 / 8 AA	81
Phosphosite 9:	SIM2	Q14190	Y188	KVIHCSGYLKIRQYM	71 / 7 AA	73
Phosphosite 10:	SIM1	P81133	Y188	KVIHCSGYLKIRQYS	71 / 7 AA	85
Phosphosite 11:	HEXB	P07686	Y101	LEEAFRRYHGYIFGF	62 / 8 AA	63
Phosphosite 12:	CCDC116	Q8IYX3	S8	MARCRHHSGYLADDE	71 / 7 AA	57
Phosphosite 13:	PPIL3	Q9H2H8	S76	KKFEDEYSEYLKHNV	71 / 7 AA	18
Phosphosite 14:	TBC1D19	Q8N5T2	S453	KWMVRAFSGYLATDQ	71 / 7 AA	60
Phosphosite 15:	ZNF142	P52746	Y1267	PLCDYSGYLRHDITR	71 / 7 AA	188
Phosphosite 16:	PPIL3	Q9H2H8	Y78	FEDEYSEYLKHNVRG	71 / 7 AA	18
Phosphosite 17:	CCNT1	O60563	Y687	AFEFVRPYSDYLNPR	71 / 7 AA	81
Phosphosite 18:	CAPRIN1	Q14444	S663	FSAPRDYSGYQRDGY	62 / 8 AA	78
Phosphosite 19:	TOMM70A	O94826	Y298	EVKENSGYLKAKQYM	71 / 7 AA	67
Phosphosite 20:	S100B	P04271	Y18	LIDVFHQYSGREGDK	83 / 6 AA	11