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:	S535
P-Site Sequence:	GWHVYNDSRVSPVSE
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	S535	GWHVYNDSRVSPVSE	100 / 9 AA	63
Phosphosite 1:	DOCK7	Q96N67	S537	QVKLYPDSRVRPTRE	66 / 9 AA	243
Phosphosite 2:	WNK1	Q9H4A3	S667	GSSVFTESRVSSQQT	55 / 9 AA	251
Phosphosite 3:	SETD5	Q9C0A6	S1403	QSAVYQASRVSAVSN	66 / 9 AA	158
Phosphosite 4:	ZNF462	Q96JM2	S2169	AALARNNSRVSPVPL	85 / 7 AA	285
Phosphosite 5:	ATXN2L	Q8WWM7	S121	FEGVYNNSRMLHFLT	71 / 7 AA	113
Phosphosite 6:	MYO9B	Q13459	S1258	PTSLALDSRVSPPAP	100 / 6 AA	244
Phosphosite 7:	USP21	Q9UK80	S538	VYNDSRVSPVSENQV	100 / 6 AA	63
Phosphosite 8:	SDCCAG3	Q96C92	S237	WALSDTDSRVSPASP	85 / 7 AA	48
Phosphosite 9:	SDCCAG3	Q96C92	S240	SDTDSRVSPASPAGS	100 / 6 AA	48
Phosphosite 10:	MYO9B	Q13459	S1261	LALDSRVSPPAPGSA	100 / 6 AA	244
Phosphosite 11:	ZCCHC7	Q8N3Z6	S372	EREVYDPSPVSPFIC	66 / 9 AA	63
Phosphosite 12:	ATXN2L	Q8WWM7	Y118	SPVFEGVYNNSRMLH	83 / 6 AA	113
Phosphosite 13:	CMYA5	Q8N3K9	S413	AASENDSSVSPSFAN	85 / 7 AA	449
Phosphosite 14:	CMYA5	Q8N3K9	S412	TAASENDSSVSPSFA	85 / 7 AA	449
Phosphosite 15:	FLJ21940	Q9H6S0	S283	IRLESRVSPKTLLTF	83 / 6 AA	160
Phosphosite 16:	ZC3H12B	Q5HYM0	S521	NPNLCSDSRVSHTRN	55 / 9 AA	87
Phosphosite 17:	PDE4D	Q08499	S528	LALMYNDSSVLENHH	71 / 7 AA	91
Phosphosite 18:	FLJ21940	Q9H6S0	S280	GYQIRLESRVSPKTL	83 / 6 AA	160
Phosphosite 19:	BBX	Q8WY36	T849	RTADGRVSPAGGTLD	83 / 6 AA	105
Phosphosite 20:	BBX	Q8WY36	S844	RTADGRVSPAGGTLD	83 / 6 AA	105