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:	S22
P-Site Sequence:	ANARSRPSFHPLSDE
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	S22	ANARSRPSFHPLSDE	100 / 9 AA	38
Phosphosite 1:	HGK	O95819	S550	QQERSKPSFHAPEPK	75 / 8 AA	142
Phosphosite 2:	JMJD1C	Q15652	S685	EHELSRCSFHPIPTR	75 / 8 AA	285
Phosphosite 3:	ZNF324	O75467	S515	TVRRSRASLHPQARS	75 / 8 AA	61
Phosphosite 4:	MYO6	Q9UM54	S710	GGYPSRASFHELYNM	75 / 8 AA	150
Phosphosite 5:	Kv1.4	P22459	S227	FFDRNRPSFDAILYY	55 / 9 AA	73
Phosphosite 6:	Kv1.3	P22001	S155	FFDRNRPSFDAILYY	55 / 9 AA	64
Phosphosite 7:	Kv1.2	P16389	S84	FFDRNRPSFDAILYY	55 / 9 AA	57
Phosphosite 8:	HOXD12	P35452	S118	ERGRTRPSFAPESSL	75 / 8 AA	30
Phosphosite 9:	PHKA1	P46020	S729	LFQASRPSFNLLDSP	75 / 8 AA	137
Phosphosite 10:	KIAA1632	Q9HCE0	T1005	PDMTESPTFHPLLKA	83 / 6 AA	292
Phosphosite 11:	CTSB	P07858	S19	LVLANARSRPSFHPL	100 / 6 AA	38
Phosphosite 12:	C6orf222	P0C671	S473	ARRPKRPSFLPLCVG	85 / 7 AA	72
Phosphosite 13:	TSEN2	Q8NCE0	S77	ILSRSRPSFTISDPK	100 / 6 AA	53
Phosphosite 14:	APOB48R	Q0VD83	S1007	SQRRSRPSFRRTPAW	85 / 7 AA	115
Phosphosite 15:	TSEN2	Q8NCE0	S74	GKGILSRSRPSFTIS	100 / 6 AA	53
Phosphosite 16:	DLK	Q12852	S356	SKPRNRPSFRQILLH	55 / 9 AA	93
Phosphosite 17:	Kv1.5	P22460	S171	FFDRNRPSFDGILYY	55 / 9 AA	67
Phosphosite 18:	ZNF541	Q9H0D2	S1266	CSPRERPSHHPTPKL	75 / 8 AA	148
Phosphosite 19:	APOB48R	Q0VD83	S1004	RSSSQRRSRPSFRRT	100 / 6 AA	115
Phosphosite 20:	DNMT3B	Q9UBC3	S445	CGRKNPVSFHPLFEG	55 / 9 AA	96