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:	S231
P-Site Sequence:	HYGYNSYSVSNSEKD
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	S231	HYGYNSYSVSNSEKD	100 / 9 AA	38
Phosphosite 1:	CTSB	P07858	S229	DKHYGYNSYSVSNSE	100 / 7 AA	38
Phosphosite 2:	CTSB	P07858	S233	GYNSYSVSNSEKDIM	100 / 7 AA	38
Phosphosite 3:	CHD4	Q14839	S330	DASINSYSVSDGSTS	75 / 8 AA	218
Phosphosite 4:	BAI3	O60242	S43	GVIYGSYSVSEMFPK	75 / 8 AA	171
Phosphosite 5:	BAI3	O60242	Y42	KGVIYGSYSVSEMFP	75 / 8 AA	171
Phosphosite 6:	CHD4	Q14839	Y329	DDASINSYSVSDGST	85 / 7 AA	218
Phosphosite 7:	USP8	P40818	S1055	LKKYNLFSVSNHYGG	75 / 8 AA	128
Phosphosite 8:	USP2	O75604	Y544	NHAVYNLYAVSNHSG	75 / 8 AA	68
Phosphosite 9:	PLEC1	Q15149	S4616	KGYYSPYSVSGSGST	66 / 9 AA	532
Phosphosite 10:	ZC3H12B	Q5HYM0	Y681	DSYGYHSYPLSNSLM	62 / 8 AA	87
Phosphosite 11:	EHMT2	Q96KQ7	S278	SLYYDSYSVDERVDS	83 / 6 AA	132
Phosphosite 12:	ATXN7L1	Q9ULK2	S671	APPYNSLSVHNSNNG	77 / 9 AA	89
Phosphosite 13:	RBM20	Q5T481	S75	LLDKNPFSVSNPNPL	62 / 8 AA	122
Phosphosite 14:	TARDBP	Q13148	S375	GSGNNSYSGSNSGAA	87 / 8 AA	45
Phosphosite 15:	ZNF572	Q7Z3I7	S523	MPFISSFSVSNSSS_	85 / 7 AA	61
Phosphosite 16:	EHMT2	Q96KQ7	Y277	FSLYYDSYSVDERVD	83 / 6 AA	132
Phosphosite 17:	DENND5B	Q6ZUT9	S178	LKLQRYNSYDISRDT	71 / 7 AA	145
Phosphosite 18:	EHMT2	Q96KQ7	S276	DFSLYYDSYSVDERV	83 / 6 AA	132
Phosphosite 19:	DENND5B	Q6ZUT9	Y179	KLQRYNSYDISRDTL	71 / 7 AA	145
Phosphosite 20:	HEATR1	Q9H583	S1071	LGKYNEFSVSLLNED	71 / 7 AA	242