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:	CTSS
Human P-Site:	S264
P-Site Sequence:	PSFFLYRSGVYYEPS
UniProt:	P25774
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSS	P25774	S264	PSFFLYRSGVYYEPS	100 / 9 AA	37
Phosphosite 1:	CTSS	P25774	Y262	RHPSFFLYRSGVYYE	100 / 7 AA	37
Phosphosite 2:	CTSB	P07858	S264	SDFLLYKSGVYQHVT	75 / 8 AA	38
Phosphosite 3:	CTSS	P25774	Y267	FLYRSGVYYEPSCTQ	100 / 6 AA	37
Phosphosite 4:	TTC9	Q92623	Y168	GENFKALYRSGVAFY	100 / 6 AA	24
Phosphosite 5:	TMTC2	Q8N394	Y484	WQNEEMLYRSGIKVN	71 / 7 AA	94
Phosphosite 6:	ATAD3A	Q9NVI7	Y486	ATLNAFLYRTGQHSN	83 / 6 AA	71
Phosphosite 7:	ATAD3C	Q5T2N8	Y263	ATLNAFLYRTGQHSN	83 / 6 AA	46
Phosphosite 8:	ZNF770	Q6IQ21	Y625	EKNDVFLYRCSVCAK	71 / 7 AA	80
Phosphosite 9:	BMPER	Q8N8U9	S242	FGSCLFRSDVYDNGS	71 / 7 AA	76
Phosphosite 10:	FLJ21986	A4D0V7	S430	IFQRLYRSDVFKGEN	71 / 7 AA	117
Phosphosite 11:	PKP4	Q99569	Y443	QGSQTALYRTGVSGI	83 / 6 AA	134
Phosphosite 12:	TMTC1	Q8IUR5	S366	SRESLFRSGVQTLPH	83 / 6 AA	87
Phosphosite 13:	TTL	Q8NG68	Y216	HQYNIYLYREGVLRT	71 / 7 AA	43
Phosphosite 14:	CTSB	P07858	Y262	VYSDFLLYKSGVYQH	71 / 7 AA	38
Phosphosite 15:	PKACg	P22612	Y29	KARGDFLYRWGNPAQ	83 / 6 AA	40
Phosphosite 16:	PKP4	Q99569	T445	SQTALYRTGVSGIGN	83 / 6 AA	134
Phosphosite 17:	PDE4D	Q08499	S195	RESFLYRSDSDYDLS	66 / 9 AA	91
Phosphosite 18:	PDE4C	Q08493	S124	RESFLYRSDSDYELS	66 / 9 AA	80
Phosphosite 19:	PDE4B	Q07343	S138	RESFLYRSDSDYDLS	66 / 9 AA	83
Phosphosite 20:	PDE4A	P27815	S150	RESFLYRSDSDYDMS	66 / 9 AA	98