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:	S445
P-Site Sequence:	NHRLRNDSVIVDTFH
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	S445	NHRLRNDSVIVDTFH	100 / 9 AA	109
Phosphosite 1:	USP11	P51784	S452	NHKRRNDSVIVDTFH	100 / 8 AA	110
Phosphosite 2:	USP19	O94966	S640	RHKMRNDSFIVDLFQ	77 / 9 AA	146
Phosphosite 3:	SNRPD2	P62316	S105	KMFLRGDSVIVVLRN	87 / 8 AA	14
Phosphosite 4:	ATF2	P15336	S62	FGPARNDSVIVADQT	100 / 7 AA	55
Phosphosite 5:	PANX1	Q96RD7	S257	SGILRNDSTVPDQFQ	66 / 9 AA	48
Phosphosite 6:	BIRC6	Q9NR09	S4353	SSYLRNDSVLDMARH	85 / 7 AA	528
Phosphosite 7:	IKZF4	Q9H2S9	S125	RLLEKDDSVIVEDSL	62 / 8 AA	64
Phosphosite 8:	GRIP2	Q9C0E4	S272	TTSLRNKSVITIDRI	85 / 7 AA	113
Phosphosite 9:	DACT1	Q9NYF0	S375	KGLLRNGSVCVRAPG	75 / 8 AA	90
Phosphosite 10:	VPS41	P49754	S491	PGDLYNNSVIVQAVR	66 / 9 AA	99
Phosphosite 11:	DNAH14	Q0VDD8	S2305	MEKLRKDSQVVEKVQ	55 / 9 AA	400
Phosphosite 12:	XPB	P19447	S301	EYDFRNDSVNPDINI	66 / 9 AA	89
Phosphosite 13:	Gab2	Q9UQC2	T534	PLDLRNNTVIDELPF	71 / 7 AA	74
Phosphosite 14:	PELI3	Q8N2H9	S137	YTLSRSHSVIVEYTH	62 / 8 AA	51
Phosphosite 15:	MPHOSPH9	Q99550	S13	LSSERNESVIHYPES	83 / 6 AA	116
Phosphosite 16:	SACS	Q9NZJ4	S3892	FRSLQNDSVKVRSDL	75 / 8 AA	521
Phosphosite 17:	IGF2R	P11717	S1658	ECSVRNGSSIVDLSP	66 / 9 AA	274
Phosphosite 18:	ATF7	P17544	S44	FGPARTDSVIIADQT	71 / 7 AA	53
Phosphosite 19:	USP6	P35125	S675	NHLRRNRSIIVDLFH	75 / 8 AA	159
Phosphosite 20:	TTC10	Q13099	S524	KEALRNDSSCTEALY	55 / 9 AA	93