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:	S265
P-Site Sequence:	SLIANGDSTSTCGMH
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	S265	SLIANGDSTSTCGMH	100 / 9 AA	109
Phosphosite 1:	USP4	Q13107	T266	LIANGDSTSTCGMHS	100 / 8 AA	109
Phosphosite 2:	USP4	Q13107	S267	IANGDSTSTCGMHSS	100 / 7 AA	109
Phosphosite 3:	CSMD2	Q7Z408	T2650	KWSLGDSTPTCRIIS	85 / 7 AA	380
Phosphosite 4:	CSMD2	Q7Z408	S2649	GKWSLGDSTPTCRII	85 / 7 AA	380
Phosphosite 5:	AMOTL2	Q9Y2J4	T737	TDGPPDSTSTCLPPE	100 / 6 AA	86
Phosphosite 6:	AMOTL2	Q9Y2J4	S738	DGPPDSTSTCLPPEP	100 / 6 AA	86
Phosphosite 7:	AMOTL2	Q9Y2J4	S736	QTDGPPDSTSTCLPP	100 / 6 AA	86
Phosphosite 8:	ORC4L	O43929	T149	ALKKGDRTSSCPVIF	62 / 8 AA	50
Phosphosite 9:	Nedd4-BP2	Q86UW6	S1190	IGISNADSQSTCDAE	75 / 8 AA	199
Phosphosite 10:	HTT	P42858	T1722	RLRDGDSTSTLEEHS	85 / 7 AA	348
Phosphosite 11:	HTT	P42858	S1721	NRLRDGDSTSTLEEH	85 / 7 AA	348
Phosphosite 12:	CSMD2	Q7Z408	T2652	SLGDSTPTCRIISCG	83 / 6 AA	380
Phosphosite 13:	FGFR4	P22455	S772	SPSGGDASSTCSSSD	71 / 7 AA	88
Phosphosite 14:	FGFR4	P22455	S773	PSGGDASSTCSSSDS	71 / 7 AA	88
Phosphosite 15:	MYO1B	O43795	S1003	INRANGKSTSRIFLL	85 / 7 AA	132
Phosphosite 16:	USP53	Q70EK8	S1026	QPELDSISTCPNETV	83 / 6 AA	121
Phosphosite 17:	USP53	Q70EK8	S1024	FCQPELDSISTCPNE	83 / 6 AA	121
Phosphosite 18:	ATF7IP	Q6VMQ6	S154	GVLASGDSTSGDPTS	85 / 7 AA	136
Phosphosite 19:	MAP3K1	Q13233	S602	LLLANGESTGNSGGS	55 / 9 AA	164
Phosphosite 20:	ADAMTS1	Q9UHI8	S689	PCSPDSTSVCVQGQC	83 / 6 AA	105