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:	CTSO
Human P-Site:	S156
P-Site Sequence:	GKPLEDLSVQQVIDC
UniProt:	P43234
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSO	P43234	S156	GKPLEDLSVQQVIDC	100 / 9 AA	36
Phosphosite 1:	Cytohesin 4	Q9UIA0	S309	IIPLENLSVQKVDDP	77 / 9 AA	46
Phosphosite 2:	PARF	Q3YEC7	S258	DATLEELSVQQETED	87 / 8 AA	80
Phosphosite 3:	Cytohesin 2	Q99418	S310	IIPLENLSIREVDDP	55 / 9 AA	47
Phosphosite 4:	CYTH1	Q15438	S311	IIPLENLSIREVEDS	55 / 9 AA	46
Phosphosite 5:	CYTH3	O43739	S315	IIPLENLSIREVEDP	55 / 9 AA	46
Phosphosite 6:	AKAP9	Q99996	S2976	YSDGEDHSIQQVSEP	75 / 8 AA	454
Phosphosite 7:	TJP1	Q07157	S622	RKSREDLSAQPVQTK	75 / 8 AA	195
Phosphosite 8:	Mad4	Q14582	S134	KRRLEQLSVQSVERV	77 / 9 AA	24
Phosphosite 9:	TSHZ2	Q9NRE2	S291	FDSLQDLSVHMIKTK	55 / 9 AA	115
Phosphosite 10:	TSHZ1	Q6ZSZ6	S323	FESLQDLSVHMIKTK	55 / 9 AA	118
Phosphosite 11:	TSHZ3	Q63HK5	S291	FESLQDLSVHMIKTK	55 / 9 AA	119
Phosphosite 12:	C3orf67	Q6ZVT6	S504	VIKAKDLSAQQVPAS	85 / 7 AA	76
Phosphosite 13:	CEP350	Q5VT06	S1237	DSTLEDLSGHSVSVS	66 / 9 AA	351
Phosphosite 14:	PCDH12	Q9NPG4	S1026	LDPEEDLSVKQLLEE	85 / 7 AA	129
Phosphosite 15:	UGP2	Q16851	T142	ENTFLDLTVQQIEHL	71 / 7 AA	57
Phosphosite 16:	ORC4L	O43929	S261	QYLSEDRSVQEVLQK	75 / 8 AA	50
Phosphosite 17:	ARHGEF10L	Q9HCE6	S311	GPMPEGLSPQQVVRR	75 / 8 AA	140
Phosphosite 18:	USP38	Q8NB14	S630	SSSLENMSVQDPASS	71 / 7 AA	117
Phosphosite 19:	PDE6D	O43924	S39	WQGTEDLSVPGVEHE	75 / 8 AA	17
Phosphosite 20:	C21orf59	P57076	T28	STELEELTVQVARVY	71 / 7 AA	33