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:	USP21
Human P-Site:	S467
P-Site Sequence:	VLHLNRFSASRGSIK
UniProt:	Q9UK80
Intern. Prot. ID:	IPI00007262

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP21	Q9UK80	S467	VLHLNRFSASRGSIK	100 / 9 AA	63
Phosphosite 1:	CDH26	Q8IXH8	S732	SKERNRFSLSRGCII	87 / 8 AA	95
Phosphosite 2:	USP2	O75604	S506	VLHLKRFSESRIRTS	75 / 8 AA	68
Phosphosite 3:	BTNL9	Q6UXG8	S380	ALSLERFSAGRHYWE	75 / 8 AA	60
Phosphosite 4:	Ig lambda chain V-I region MEM	P06887	S65	SGVPDRFSASRSGTS	75 / 8 AA	12
Phosphosite 5:	mGluR3	Q14832	S845	RLHLNRFSVSGTGTT	85 / 7 AA	99
Phosphosite 6:	EIF4G3	O43432	S1102	ASSLNRFSALQPPAP	100 / 6 AA	177
Phosphosite 7:	ASB7	Q9H672	S54	GWTLLHFSAARGKER	66 / 9 AA	36
Phosphosite 8:	USP15	Q9Y4E8	S839	VVHLKRFSYSRYMRD	75 / 8 AA	112
Phosphosite 9:	GPR116	Q8IZF2	S1282	EALLNKFSLSRWSSQ	75 / 8 AA	149
Phosphosite 10:	SCN10A	Q9Y5Y9	S105	GRTISRFSATRALWL	55 / 9 AA	221
Phosphosite 11:	TMEM59	Q9BXS4	Y291	NEQKLNRYPASSLVV	71 / 7 AA	36
Phosphosite 12:	KCNN3	Q9UGI6	S197	MKPLSRLSASRRNLI	75 / 8 AA	82
Phosphosite 13:	Ig lambda chain V-I region MEM	P06887	S67	VPDRFSASRSGTSAS	100 / 6 AA	12
Phosphosite 14:	CASKIN1	Q8WXD9	Y886	RAHSLNRYAASDSEP	71 / 7 AA	150
Phosphosite 15:	ZNF442	Q9H7R0	S97	CHIIERFSESRQPDS	62 / 8 AA	73
Phosphosite 16:	ABCC4	O15439	S826	GRILNRFSKDIGHLD	66 / 9 AA	150
Phosphosite 17:	EIF4G2	P78344	S14	EGGASRFSASSGGGG	75 / 8 AA	102
Phosphosite 18:	PTCHD3	Q3KNS1	S198	TNDSYRFSASRRSTE	85 / 7 AA	87
Phosphosite 19:	KIAA1267	Q7Z3B3	T384	SEELERFTASGIANL	71 / 7 AA	121
Phosphosite 20:	CDH26	Q8IXH8	S734	ERNRFSLSRGCIIPQ	85 / 7 AA	95