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:	SOX21
Human P-Site:	Y268
P-Site Sequence:	GKPQLDPYPAAYAAA
UniProt:	Q9Y651
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SOX21	Q9Y651	Y268	GKPQLDPYPAAYAAA	100 / 9 AA	29
Phosphosite 1:	CUX2	O14529	Y1130	KAYQLEPYPSQQTIE	71 / 7 AA	154
Phosphosite 2:	MTMR10	Q9NXD2	Y477	TWQLLEQYPAAFEFS	62 / 8 AA	88
Phosphosite 3:	C22orf30	Q5THK1	Y1673	STEQLNPYLAASGWD	75 / 8 AA	237
Phosphosite 4:	DSN1	Q9H410	S331	SMQQLDPSPARKLLK	85 / 7 AA	40
Phosphosite 5:	PACSIN1	Q9BY11	Y436	DSGQLGLYPANYVEA	66 / 9 AA	51
Phosphosite 6:	TG	P01266	Y879	LNGQLSQYPGSYSDF	55 / 9 AA	305
Phosphosite 7:	TMEM127	O75204	Y220	EMEENEPYPAEYEVI	55 / 9 AA	26
Phosphosite 8:	MLN	P12872	Y97	NSRQLEKYPATLEGL	62 / 8 AA	12
Phosphosite 9:	COG5	Q9UP83	Y481	LKDSLQPYEAAYLSK	75 / 8 AA	93
Phosphosite 10:	PPFIA3	O75145	Y533	SGAHLDPYVAGSGRA	62 / 8 AA	133
Phosphosite 11:	RNMT	O43148	Y421	RMQALEPYPANESSK	83 / 6 AA	55
Phosphosite 12:	SLC13A4	Q9UKG4	Y613	SLFHLDTYPAWARVS	71 / 7 AA	69
Phosphosite 13:	STON1	Q9Y6Q2	Y327	KEIQLDPYCRLSEPK	100 / 5 AA	83
Phosphosite 14:	CENTB5	Q96P50	Y214	LLHQLDPYMKKLAAE	100 / 5 AA	92
Phosphosite 15:	ERG	P11308	Y300	QRPQLDPYQILGPTS	83 / 6 AA	55
Phosphosite 16:	Hs.99248	A4D263	Y84	DYHLHDPYPPPYGPH	71 / 7 AA	50
Phosphosite 17:	TGM7	Q96PF1	Y675	LQIQLDLYPTKAGPR	71 / 7 AA	80
Phosphosite 18:	RNF144B	Q7Z419	Y117	REVHLDPYRTWCPVA	57 / 7 AA	34
Phosphosite 19:	TTC13	Q8NBP0	Y383	RCLQLEPYNEVCQYM	44 / 9 AA	97
Phosphosite 20:	TBX19	O60806	Y293	RGHRQAPYPSAYMHR	55 / 9 AA	48