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:	PITX1
Human P-Site:	S222
P-Site Sequence:	SAPSSISSMTMPSSM
UniProt:	P78337
Intern. Prot. ID:	IPI00019182

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PITX1	P78337	S222	SAPSSISSMTMPSSM	100 / 9 AA	34
Phosphosite 1:	PITX1	P78337	S221	FSAPSSISSMTMPSS	100 / 8 AA	34
Phosphosite 2:	PITX1	P78337	T224	PSSISSMTMPSSMGP	100 / 7 AA	34
Phosphosite 3:	CYTIP	O60759	S252	SCKSWLSSMTMDSED	75 / 8 AA	40
Phosphosite 4:	CYTIP	O60759	S251	SSCKSWLSSMTMDSE	75 / 8 AA	40
Phosphosite 5:	ARNT	P27540	S678	QTPSSFSSMSLPGAP	66 / 9 AA	87
Phosphosite 6:	USP28	Q96RU2	S521	PLTSSRSSMEMPSQP	77 / 9 AA	122
Phosphosite 7:	ERCC6	Q03468	S226	PGPSSLGSMLMPVQE	66 / 9 AA	168
Phosphosite 8:	PITX2	Q99697	S218	FSPPNSISSMSMSSS	75 / 8 AA	35
Phosphosite 9:	PITX2	Q99697	S219	SPPNSISSMSMSSSM	66 / 9 AA	35
Phosphosite 10:	PTPRF	P10586	S1005	PLSPSIQSRTMPVEQ	66 / 9 AA	211
Phosphosite 11:	APLF	Q8IW19	S267	QEESTISSKEMPQSF	66 / 9 AA	57
Phosphosite 12:	AGAP7	Q5VUJ5	T361	FSPSISSTTIPKLNP	75 / 8 AA	73
Phosphosite 13:	TMC3	Q7Z5M5	Y477	EETSISAYTMPLIKA	75 / 8 AA	126
Phosphosite 14:	POLN	Q7Z5Q5	S110	DQKQKSISSLTLSSC	71 / 7 AA	100
Phosphosite 15:	ATP2B2	Q01814	T532	PDPSSINTKTMELLI	62 / 8 AA	137
Phosphosite 16:	FBXO28	Q9NVF7	S205	QELRDISSMAMEYFD	83 / 6 AA	41
Phosphosite 17:	POLN	Q7Z5Q5	S111	QKQKSISSLTLSSCL	71 / 7 AA	100
Phosphosite 18:	FBXO28	Q9NVF7	S204	LQELRDISSMAMEYF	83 / 6 AA	41
Phosphosite 19:	TYW1	Q9NV66	S615	CGESSASSLTMAHVP	66 / 9 AA	84
Phosphosite 20:	TYW1B	Q6NUM6	S551	CRESSASSLTMAHVP	66 / 9 AA	77