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:	USP4
Human P-Site:	T228
P-Site Sequence:	DGTWPRQTLQSKSST
UniProt:	Q13107
Intern. Prot. ID:	IPI00011836

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP4	Q13107	T228	DGTWPRQTLQSKSST	100 / 9 AA	109
Phosphosite 1:	NSUN3	Q9H649	T174	RLRWLRQTLESFIPQ	75 / 8 AA	38
Phosphosite 2:	C5	P01031	T678	EILRPRRTLQKKIEE	66 / 9 AA	188
Phosphosite 3:	FILIP1L	Q4L180	T407	NKRLERETLQSKDFK	66 / 9 AA	130
Phosphosite 4:	KIF18B	Q86Y91	T496	LPESPRLTLQPKPVV	66 / 9 AA	92
Phosphosite 5:	C2orf67	A0AUZ9	T586	TFYWTPQTLPSKETA	66 / 9 AA	112
Phosphosite 6:	CDK12	Q9NYV4	T648	DMDSPKETLPSKPVK	55 / 9 AA	164
Phosphosite 7:	TIRAP	P58753	T28	MADWFRQTLLKKPKK	66 / 9 AA	24
Phosphosite 8:	MAPK15	Q8TD08	T264	LGSRPRQTLDALLPP	62 / 8 AA	60
Phosphosite 9:	RLBP1	P12271	T44	CSQLPRHTLQKAKDE	71 / 7 AA	36
Phosphosite 10:	KLHL20	Q9Y2M5	T54	SDKHPRQTLEVINLL	71 / 7 AA	68
Phosphosite 11:	C2orf86	O95876	T425	EDRLPRETLQFSKLF	71 / 7 AA	85
Phosphosite 12:	UBTF	P17480	T670	NPKSSRTTLQSKSES	66 / 9 AA	89
Phosphosite 13:	NCOA2	Q15596	T1001	SQPGQRQTLQSQVMN	100 / 6 AA	159
Phosphosite 14:	USP4	Q13107	S231	WPRQTLQSKSSTAPS	100 / 6 AA	109
Phosphosite 15:	MKK7	O14733	T42	SPQRPRPTLQLPLAN	71 / 7 AA	47
Phosphosite 16:	NAP5	O14513	T1053	PKTSPRQTLGTPQRD	83 / 6 AA	209
Phosphosite 17:	DCP1B	Q8IZD4	T434	QSTLPRQTLPISGSQ	83 / 6 AA	68
Phosphosite 18:	TRIM52	Q96A61	T13	TTPSPMQTLQEEAVC	71 / 7 AA	35
Phosphosite 19:	GALT	P07902	Y251	PFWATWPYQTLLLPR	83 / 6 AA	43
Phosphosite 20:	PRUNE2	Q8WUY3	T933	KQDTERETLQSDAAS	71 / 7 AA	34