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:	S293
P-Site Sequence:	VFQKYVPSFSGYSQQ
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	S293	VFQKYVPSFSGYSQQ	100 / 9 AA	63
Phosphosite 1:	USP21	Q9UK80	Y290	FRAVFQKYVPSFSGY	100 / 6 AA	63
Phosphosite 2:	WWC3	Q9ULE0	S74	DSRSYASSFSGYSTN	75 / 8 AA	123
Phosphosite 3:	SLC44A4	Q53GD3	S22	KPVKYDPSFRGPIKN	75 / 8 AA	79
Phosphosite 4:	ZNF318	Q5VUA4	S2067	ADFEPIPSFSGFPLD	71 / 7 AA	251
Phosphosite 5:	ZNF318	Q5VUA4	S2069	FEPIPSFSGFPLDSP	71 / 7 AA	251
Phosphosite 6:	VDR	P11473	S177	PNSRHTPSFSGDSSS	62 / 8 AA	48
Phosphosite 7:	PLEKHG1	Q9ULL1	S565	DYQMFVPSFSSSDLN	62 / 8 AA	155
Phosphosite 8:	ICK	Q9UPZ9	Y555	SSGLTGNYVPSFLKK	83 / 6 AA	71
Phosphosite 9:	ANXA11	P50995	S169	GQQQPVPSYPGYPGS	71 / 7 AA	54
Phosphosite 10:	TBC1D19	Q8N5T2	S453	KWMVRAFSGYLATDQ	71 / 7 AA	60
Phosphosite 11:	ANXA11	P50995	Y170	QQQPVPSYPGYPGSG	71 / 7 AA	54
Phosphosite 12:	ICK	Q9UPZ9	S558	LTGNYVPSFLKKEIG	83 / 6 AA	71
Phosphosite 13:	C6orf152	Q86VQ0	S559	AFGSYVPSFAKTSER	83 / 6 AA	81
Phosphosite 14:	DNAJC14	Q6Y2X3	S37	DPEIPSFSGLRDSAG	83 / 6 AA	79
Phosphosite 15:	C19orf71	A6NCJ1	S170	RASDYVPSLSAPQRP	62 / 8 AA	24
Phosphosite 16:	DNAJC14	Q6Y2X3	S35	SVDPEIPSFSGLRDS	71 / 7 AA	79
Phosphosite 17:	NHLRC3	Q5JS37	Y341	KYVPLNSYVPSFGS_	100 / 5 AA	38
Phosphosite 18:	SMCR8	Q8TEV9	Y929	HPMLRFDYVPSFLYK	83 / 6 AA	105
Phosphosite 19:	HNMT	P50135	Y15	LFSDHGKYVESFRRF	83 / 6 AA	33
Phosphosite 20:	HNMT	P50135	S18	DHGKYVESFRRFLNH	55 / 9 AA	33