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:	S19
P-Site Sequence:	LVLANARSRPSFHPL
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	S19	LVLANARSRPSFHPL	100 / 9 AA	38
Phosphosite 1:	TSEN2	Q8NCE0	S74	GKGILSRSRPSFTIS	85 / 7 AA	53
Phosphosite 2:	TSEN2	Q8NCE0	S77	ILSRSRPSFTISDPK	100 / 6 AA	53
Phosphosite 3:	CTSB	P07858	S22	ANARSRPSFHPLSDE	100 / 6 AA	38
Phosphosite 4:	APOB48R	Q0VD83	S1004	RSSSQRRSRPSFRRT	100 / 6 AA	115
Phosphosite 5:	AlphaK3	Q96QP1	S713	PRNTSAHSRPSYRSA	55 / 9 AA	139
Phosphosite 6:	APOB48R	Q0VD83	S1007	SQRRSRPSFRRTPAW	100 / 6 AA	115
Phosphosite 7:	HOXD12	P35452	T115	GPEERGRTRPSFAPE	71 / 7 AA	30
Phosphosite 8:	HGK	O95819	S547	PPPQQERSKPSFHAP	71 / 7 AA	142
Phosphosite 9:	NCL	P19338	S568	RGSPNARSQPSKTLF	75 / 8 AA	77
Phosphosite 10:	HOXD12	P35452	S118	ERGRTRPSFAPESSL	83 / 6 AA	30
Phosphosite 11:	Kv1.4	P22459	S227	FFDRNRPSFDAILYY	83 / 6 AA	73
Phosphosite 12:	Kv1.3	P22001	S155	FFDRNRPSFDAILYY	83 / 6 AA	64
Phosphosite 13:	Kv1.2	P16389	S84	FFDRNRPSFDAILYY	83 / 6 AA	57
Phosphosite 14:	Kv1.5	P22460	S171	FFDRNRPSFDGILYY	83 / 6 AA	67
Phosphosite 15:	TTPA	P49638	S6	__MAEARSQPSAGPQ	75 / 8 AA	32
Phosphosite 16:	MAGEB18	Q96M61	S332	AAMANARSRTTSSSF	75 / 8 AA	39
Phosphosite 17:	DLK	Q12852	S356	SKPRNRPSFRQILLH	83 / 6 AA	93
Phosphosite 18:	HGK	O95819	S550	QQERSKPSFHAPEPK	83 / 6 AA	142
Phosphosite 19:	FGD5	Q6ZNL6	S749	VESFEDRSRPPFLPL	62 / 8 AA	160
Phosphosite 20:	MAP3K13	O43283	S399	SKPRNRPSFRQTLMH	83 / 6 AA	108