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:	CTSB
Human P-Site:	Y225
P-Site Sequence:	TYKQDKHYGYNSYSV
UniProt:	P07858
Intern. Prot. ID:	IPI00295741

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTSB	P07858	Y225	TYKQDKHYGYNSYSV	100 / 9 AA	38
Phosphosite 1:	CTSB	P07858	Y227	KQDKHYGYNSYSVSN	100 / 7 AA	38
Phosphosite 2:	PAPOLG	Q9BWT3	Y19	SQRQQKHYGITSPIS	66 / 9 AA	83
Phosphosite 3:	NFAT2	O95644	Y45	KSAEEEHYGYASSNV	55 / 9 AA	101
Phosphosite 4:	PSMA4	P25789	Y143	YIGWDKHYGFQLYQS	83 / 6 AA	29
Phosphosite 5:	FBXO21	O94952	Y514	LIMKHKRYGYNCVIY	55 / 9 AA	72
Phosphosite 6:	EPHX1	P07099	Y83	LEDSCFHYGFNSNYL	83 / 6 AA	53
Phosphosite 7:	ANXA3	P12429	Y295	RTEFKKHYGYSLYSA	83 / 6 AA	36
Phosphosite 8:	DPEP1	P16444	Y383	SCRTHYGYSSGASSL	71 / 7 AA	46
Phosphosite 9:	ZNF311	Q5JNZ3	Y443	IHTREKHYGCPQCGK	57 / 7 AA	76
Phosphosite 10:	ANXA3	P12429	Y297	EFKKHYGYSLYSAIK	83 / 6 AA	36
Phosphosite 11:	DPEP1	P16444	Y381	GGSCRTHYGYSSGAS	71 / 7 AA	46
Phosphosite 12:	ADAMTS20	P59510	Y734	FNSSHYGYNVVVKIP	100 / 5 AA	215
Phosphosite 13:	DPEP1	P16444	S384	CRTHYGYSSGASSLH	83 / 6 AA	46
Phosphosite 14:	GAD2	Q05329	Y433	LFQQDKHYDLSYDTG	83 / 6 AA	65
Phosphosite 15:	RPTN	Q6XPR3	Y240	KPIQDSHYGQSERHT	83 / 6 AA	91
Phosphosite 16:	FAM103A1	Q9BTL3	Y109	QQYGHYGYNQRPPYG	100 / 5 AA	14
Phosphosite 17:	POLI	Q9UNA4	Y355	RYSSEKHYGRESRQC	62 / 8 AA	80
Phosphosite 18:	GBAS	O75323	Y106	KIHEDKHYPCTLVGT	50 / 8 AA	34
Phosphosite 19:	HNRNPD	Q14103	Y307	QGYGNYGYNSQGYGG	83 / 6 AA	38
Phosphosite 20:	NFAT2	O95644	Y47	AEEEHYGYASSNVSP	83 / 6 AA	101