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:	S196
P-Site Sequence:	RSSEPFYSDDKMAHH
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	S196	RSSEPFYSDDKMAHH	100 / 9 AA	63
Phosphosite 1:	USP21	Q9UK80	Y195	ARSSEPFYSDDKMAH	100 / 8 AA	63
Phosphosite 2:	SNTG1	Q9NSN8	S53	VSGEPFYSGERTVTI	55 / 9 AA	58
Phosphosite 3:	OAZ1	P54368	S97	LSANLFYSDDRLNVT	71 / 7 AA	25
Phosphosite 4:	DHTKD1	Q96HY7	T444	ELDEPFYTNPIMYKI	55 / 9 AA	103
Phosphosite 5:	SCN5A	Q14524	S88	EDLDPFYSTQKTFIV	55 / 9 AA	227
Phosphosite 6:	CAMSAP1L1	Q08AD1	Y58	EELQEPFYTDQYDQE	71 / 7 AA	168
Phosphosite 7:	SCN5A	Q14524	Y87	LEDLDPFYSTQKTFI	62 / 8 AA	227
Phosphosite 8:	CAMK2N2	Q96S95	S8	MSEILPYSEDKMGRF	83 / 6 AA	9
Phosphosite 9:	KIAA1543	Q9P1Y5	Y61	PELWEPFYTDQYAQE	71 / 7 AA	135
Phosphosite 10:	ARHGAP23	Q9P227	T994	KLPEPLFTDDKYNDF	62 / 8 AA	162
Phosphosite 11:	KIAA1117	Q5JWR5	S2055	LLDMVFYSDEKERVI	83 / 6 AA	277
Phosphosite 12:	TBL3	Q12788	Y25	ERKIEPFYKGGKAQL	62 / 8 AA	89
Phosphosite 13:	CAMSAP1L1	Q08AD1	T59	ELQEPFYTDQYDQEH	83 / 6 AA	168
Phosphosite 14:	JunB	P17275	Y10	TKMEQPFYHDDSYTA	71 / 7 AA	36
Phosphosite 15:	RRP15	Q9Y3B9	Y57	GSEKDHFYSDDDAIE	71 / 7 AA	31
Phosphosite 16:	RRP15	Q9Y3B9	S58	SEKDHFYSDDDAIEA	71 / 7 AA	31
Phosphosite 17:	KIAA0467	Q5T011	Y1228	SRSQEPIYSEEASGP	57 / 7 AA	278
Phosphosite 18:	SGK2	Q9HBY8	Y295	LHGLPPFYSQDVSQM	83 / 6 AA	48
Phosphosite 19:	PKNOX2	Q96KN3	S125	QEHKPFFSDDPELDN	83 / 6 AA	52
Phosphosite 20:	KIAA0467	Q5T011	S1229	RSQEPIYSEEASGPR	57 / 7 AA	278