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:	S472
P-Site Sequence:	RFSASRGSIKKSSVG
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	S472	RFSASRGSIKKSSVG	100 / 9 AA	63
Phosphosite 1:	ARHGEF19	Q8IW93	S132	QRRASHGSEKKSAWR	77 / 9 AA	89
Phosphosite 2:	HHIPL2	Q6UWX4	S593	SAYAPRGSIYKFVDP	75 / 8 AA	81
Phosphosite 3:	BSN	Q9UPA5	S2551	EQWEASRSGIKKRHS	75 / 8 AA	416
Phosphosite 4:	MTCH1	Q9NZJ7	S168	LSTVTRGSMKKVFPP	62 / 8 AA	42
Phosphosite 5:	FHDC1	Q9C0D6	S980	VPLQPRGSFKKPSAK	62 / 8 AA	125
Phosphosite 6:	CCDC88C	Q9P219	S2003	LEDCSRGSVSKSSPA	75 / 8 AA	228
Phosphosite 7:	SKT	Q5T5P2	S55	SNGNSRGSVSKSSRN	75 / 8 AA	214
Phosphosite 8:	TRAD	O60229	S2395	AAESSDGSIKKSCSW	77 / 9 AA	340
Phosphosite 9:	SLC12A5	Q9H2X9	S963	ITDESRGSIRRKNPA	62 / 8 AA	126
Phosphosite 10:	CapZIP	Q6JBY9	S164	NKVRTRGSIKRRPPS	71 / 7 AA	45
Phosphosite 11:	MOBKL3	Q9Y3A3	S147	KYFPSRVSIKESSVA	66 / 9 AA	26
Phosphosite 12:	BHLHE22	Q8NFJ8	S137	GESASRGSVAESSGG	66 / 9 AA	37
Phosphosite 13:	Cx50	P48165	S128	NGGPDQGSVKKSSGS	55 / 9 AA	48
Phosphosite 14:	USP37	Q86T82	S170	LGNPGRGSIKTVAGS	71 / 7 AA	110
Phosphosite 15:	KIAA1109	Q2LD37	S1432	QIDYSRGSIYHSVEG	75 / 8 AA	555
Phosphosite 16:	NFAT5	O94916	S304	LTEGSRGSVKDRTQQ	71 / 7 AA	166
Phosphosite 17:	PRRT3	Q5FWE3	S911	LDSFSRGSLKISWNP	75 / 8 AA	102
Phosphosite 18:	REXO4	Q9GZR2	S128	AGKDQEASRGSVPSG	83 / 6 AA	47
Phosphosite 19:	FAK	Q05397	S843	DVRLSRGSIDREDGS	71 / 7 AA	120
Phosphosite 20:	C13orf33	Q5VYS4	S264	FSVTSRGSIDDVFNC	62 / 8 AA	34