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:	IKZF4
Human P-Site:	S450
P-Site Sequence:	TDPGASPSNGCQDST
UniProt:	Q9H2S9
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IKZF4	Q9H2S9	S450	TDPGASPSNGCQDST	100 / 9 AA	64
Phosphosite 1:	IKZF1	Q13422	S391	SEREASPSNSCQDST	87 / 8 AA	58
Phosphosite 2:	USP53	Q70EK8	S907	IIRSASRSDGCQMPK	75 / 8 AA	121
Phosphosite 3:	IKZF1	Q13422	S393	REASPSNSCQDSTDT	85 / 7 AA	58
Phosphosite 4:	IKZF4	Q9H2S9	S448	PLTDPGASPSNGCQD	100 / 7 AA	64
Phosphosite 5:	IKZF2	Q9UKS7	S401	QEREASPSNSCLDST	85 / 7 AA	60
Phosphosite 6:	PHTF1	Q9UMS5	S299	RSVEGASSDNGCEVK	75 / 8 AA	87
Phosphosite 7:	TNS4	Q8IZW8	S406	QPGAASPSNPCPATR	66 / 9 AA	77
Phosphosite 8:	CNTN4	Q8IWV2	S1005	RGSGASTSNACTLSA	75 / 8 AA	113
Phosphosite 9:	BDP1	A6H8Y1	S1526	TERNLSPSNSCEPKE	71 / 7 AA	294
Phosphosite 10:	CNTN4	Q8IWV2	T1004	ARGSGASTSNACTLS	75 / 8 AA	113
Phosphosite 11:	CENPC1	Q03188	S75	DTCIQSPSKECQKSH	71 / 7 AA	107
Phosphosite 12:	BDP1	A6H8Y1	S1528	RNLSPSNSCEPKEES	71 / 7 AA	294
Phosphosite 13:	PHC2	Q8IXK0	S25	SSTSGASSSSGCNNS	75 / 8 AA	91
Phosphosite 14:	SLCO3A1	Q9UIG8	S529	VVPGKCPSPGCQEAF	66 / 9 AA	76
Phosphosite 15:	PHC2	Q8IXK0	S26	STSGASSSSGCNNSS	75 / 8 AA	91
Phosphosite 16:	ANKRD50	Q9ULJ7	S1104	LEKYGASSLNGCSPS	75 / 8 AA	150
Phosphosite 17:	EDEM3	Q9BZQ6	S690	FVASSKPSNGCSELT	100 / 5 AA	105
Phosphosite 18:	SLC35A5	Q9BS91	S189	HDAFFSPSNSCLLFR	71 / 7 AA	49
Phosphosite 19:	MTMR13	Q86WG5	S1722	QNSSISPSNGVERRA	71 / 7 AA	208
Phosphosite 20:	HCCS	P53701	S23	NASASPPSGCPMHEG	62 / 8 AA	31