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:	APEX1
Human P-Site:	S54
P-Site Sequence:	DPPDQKTSPSGKPAT
UniProt:	P27695
Intern. Prot. ID:	IPI00215911

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	APEX1	P27695	S54	DPPDQKTSPSGKPAT	100 / 9 AA	35
Phosphosite 1:	APEX1	P27695	T53	EDPPDQKTSPSGKPA	100 / 8 AA	35
Phosphosite 2:	MUC4	Q99102	S245	GTVSQKTSPSGETAT	100 / 7 AA	232
Phosphosite 3:	SEMG2	Q02383	S149	PSQDQGNSPSGKGLS	77 / 9 AA	65
Phosphosite 4:	SEMG1	P04279	S149	PSQDQGNSPSGKGIS	77 / 9 AA	52
Phosphosite 5:	POLDIP2	Q9Y2S7	T361	ESNKDEKTPPSGLHW	75 / 8 AA	42
Phosphosite 6:	APEX1	P27695	S56	PDQKTSPSGKPATLK	100 / 7 AA	35
Phosphosite 7:	FLNC	Q14315	S2256	DMTAQVTSPSGKVEA	87 / 8 AA	291
Phosphosite 8:	FLNA	P21333	S2180	DMTAQVTSPSGKTHE	87 / 8 AA	281
Phosphosite 9:	SGK223	Q86YV5	S243	DDSDQRCSPSGDSEG	75 / 8 AA	150
Phosphosite 10:	C1orf63	Q9BUV0	S282	PKIDQKKSPYGLWIP	75 / 8 AA	34
Phosphosite 11:	GTF2H1	P32780	S56	DIKCQKISPEGKAKI	75 / 8 AA	62
Phosphosite 12:	P4HA1	P13674	T272	DQSDQKTTPKKKGVA	66 / 9 AA	61
Phosphosite 13:	NFKB2	Q00653	T811	VDTYRQTTSPSGSLL	85 / 7 AA	97
Phosphosite 14:	NFKB2	Q00653	S812	DTYRQTTSPSGSLLR	85 / 7 AA	97
Phosphosite 15:	C22orf30	Q5THK1	S155	TAAEEKTSPSQEDLL	71 / 7 AA	237
Phosphosite 16:	MUC4	Q99102	S247	VSQKTSPSGETATSS	100 / 6 AA	232
Phosphosite 17:	P4HA1	P13674	T271	DDQSDQKTTPKKKGV	83 / 6 AA	61
Phosphosite 18:	Rab3IP	Q96QF0	S52	GTQEQTTSPSVIYRP	71 / 7 AA	53
Phosphosite 19:	SHKBP1	Q8TBC3	T182	GRMLDEKTPPSPSGQ	71 / 7 AA	76
Phosphosite 20:	ACTR8	Q9H981	S290	DVGDQKTSVCCVEDG	71 / 7 AA	70