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:	PRR21
Human P-Site:	S343
P-Site Sequence:	IHASSSKSLHLRLFS
UniProt:	Q8WXC7
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PRR21	Q8WXC7	S343	IHASSSKSLHLRLFS	100 / 9 AA	42
Phosphosite 1:	UBR5	O95071	S985	AGSSSSRSLRLREMM	77 / 9 AA	309
Phosphosite 2:	SYPL2	Q5VXT5	T104	DEESSSKTMHLMGDF	66 / 9 AA	30
Phosphosite 3:	GSTCD	Q8NEC7	S236	GLDSSSKSLELKVAF	77 / 9 AA	71
Phosphosite 4:	C12orf34	Q5U5X8	S22	HLACPSKSLELRKCE	66 / 9 AA	47
Phosphosite 5:	PRR21	Q8WXC7	S341	PFIHASSSKSLHLRL	100 / 7 AA	42
Phosphosite 6:	PRR21	Q8WXC7	S329	VHASSSTSLHPRPFI	77 / 9 AA	42
Phosphosite 7:	NEK3	P51956	S347	REEKGNKSVHLRKAS	62 / 8 AA	58
Phosphosite 8:	FAM149A	A5PLN7	S316	CGEWTRRSLHLRVLG	55 / 9 AA	83
Phosphosite 9:	CABYR	O75952	S416	IKIGSEKSLHLEVEI	75 / 8 AA	53
Phosphosite 10:	MYO5B	Q9ULV0	S37	DYKEGDKSLQLRLED	62 / 8 AA	214
Phosphosite 11:	ATM	Q13315	S941	STLEPTKSLHLHMYL	62 / 8 AA	351
Phosphosite 12:	CSMD2	Q7Z408	S2443	IVTSSSNSVYLRWSS	66 / 9 AA	380
Phosphosite 13:	DSN1	Q9H410	S77	QERLQSKSLHLSPQE	100 / 6 AA	40
Phosphosite 14:	TRIO	O75962	S1258	DSNKSSKSLQLDIIP	85 / 7 AA	347
Phosphosite 15:	ZNF260	Q3ZCT1	T71	CSRVSSLTLHLRSHT	75 / 8 AA	47
Phosphosite 16:	FAM62C	A0FGR9	S152	EPKIREKSIHLRTFT	83 / 6 AA	100
Phosphosite 17:	C5orf6	Q9NYF3	S75	SYHPSGLSLHLRPPS	66 / 9 AA	43
Phosphosite 18:	ZNF490	Q9ULM2	S516	KAFSYSKSLHVHERT	66 / 9 AA	61
Phosphosite 19:	NPL4	Q8TAT6	S63	ITASSNKSLNLLKIK	75 / 8 AA	68
Phosphosite 20:	FIGNL1	Q6PIW4	S8	MQTSSSRSVHLSEWQ	75 / 8 AA	74