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:	S589
P-Site Sequence:	VYFRERKSRPSSTSS
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	S589	VYFRERKSRPSSTSS	100 / 9 AA	109
Phosphosite 1:	NPAT	Q14207	S1382	LDERERNSRPSSKNL	88 / 9 AA	154
Phosphosite 2:	C5orf5	Q9NYF5	S593	QFERERNSKPSYSDI	75 / 8 AA	105
Phosphosite 3:	TCHHL1	Q5QJ38	T412	QKERDRKTRPLVLET	71 / 7 AA	99
Phosphosite 4:	DDX23	Q9BUQ8	S38	DRDRDRKSSPSKDRK	75 / 8 AA	96
Phosphosite 5:	NIPBL	Q6KC79	S888	PSSGEQKSRPDSPRV	75 / 8 AA	316
Phosphosite 6:	C1orf87	Q8N0U7	S187	LVRRELKSRPLSSNL	77 / 9 AA	62
Phosphosite 7:	BRAF	P15056	S428	GPQRERKSSSSSEDR	77 / 9 AA	84
Phosphosite 8:	RAPGEF6	Q8TEU7	S1432	KGSLERKSWTSSSSL	75 / 8 AA	179
Phosphosite 9:	FAM149A	A5PLN7	S713	TATLERLSRPSTTHT	75 / 8 AA	83
Phosphosite 10:	HECW1	Q76N89	S532	RASVKRKSRPCSLPV	85 / 7 AA	180
Phosphosite 11:	TTC9	Q92623	S101	PGERERDSRAASPAG	66 / 9 AA	24
Phosphosite 12:	NIPBL	Q6KC79	S2482	DKRKERKSSPSKENE	75 / 8 AA	316
Phosphosite 13:	NKTR	P30414	S485	SCDRERSSRSSSLSS	77 / 9 AA	166
Phosphosite 14:	SLC22A7	Q9Y694	S531	IQDVERKSAPTSLQE	75 / 8 AA	60
Phosphosite 15:	MKRN2	Q9H000	T122	SGMAERKTQPSMVSN	71 / 7 AA	47
Phosphosite 16:	JMJD1B	Q7LBC6	S1062	DCYRLRKSRPRSETE	77 / 9 AA	192
Phosphosite 17:	CDH19	Q9H159	T670	TIMRERKTRKTTSAE	55 / 9 AA	87
Phosphosite 18:	TIGD1	Q96MW7	S11	KCSSERKSRTSLTLN	85 / 7 AA	67
Phosphosite 19:	SI1	Q9P2N6	S511	FEVPERGSRPASPAA	75 / 8 AA	96
Phosphosite 20:	NFXL1	Q6ZNB6	T544	VPCGRERTTRPPKCK	62 / 8 AA	101