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:	PRRX1
Human P-Site:	T100
P-Site Sequence:	KQRRNRTTFNSSQLQ
UniProt:	P54821
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PRRX1	P54821	T100	KQRRNRTTFNSSQLQ	100 / 9 AA	27
Phosphosite 1:	PRRX2	Q99811	T110	KQRRNRTTFNSSQLQ	100 / 9 AA	27
Phosphosite 2:	PRRX2	Q99811	T109	KKQRRNRTTFNSSQL	100 / 8 AA	27
Phosphosite 3:	PRRX1	P54821	T99	RKQRRNRTTFNSSQL	100 / 8 AA	27
Phosphosite 4:	ALX4	Q9H161	T220	KKRRNRTTFTSYQLE	87 / 8 AA	44
Phosphosite 5:	ALX4	Q9H161	T219	GKKRRNRTTFTSYQL	87 / 8 AA	44
Phosphosite 6:	ALX1	Q15699	T138	KKRRHRTTFTSLQLE	75 / 8 AA	37
Phosphosite 7:	ALX1	Q15699	T137	SKKRRHRTTFTSLQL	75 / 8 AA	37
Phosphosite 8:	ALX3	O95076	T159	KKRRNRTTFSTFQLE	75 / 8 AA	37
Phosphosite 9:	ALX3	O95076	T158	SKKRRNRTTFSTFQL	75 / 8 AA	37
Phosphosite 10:	DRGX	A6NNA5	T39	KQRRNRTTFTLQQLE	100 / 6 AA	29
Phosphosite 11:	RAX	Q9Y2V3	T142	KHRRNRTTFTTYQLH	75 / 8 AA	37
Phosphosite 12:	RAX2	Q96IS3	T33	KHRRNRTTFTTYQLH	75 / 8 AA	20
Phosphosite 13:	KIF24	Q5T7B8	S563	VTSRNRTSGNSSPKR	77 / 9 AA	152
Phosphosite 14:	RAX	Q9Y2V3	T141	KKHRRNRTTFTTYQL	75 / 8 AA	37
Phosphosite 15:	RAX2	Q96IS3	T32	KKHRRNRTTFTTYQL	75 / 8 AA	20
Phosphosite 16:	ZFHX3	Q15911	S571	ANRRNRLSFNSEGVR	75 / 8 AA	404
Phosphosite 17:	DRGX	A6NNA5	T38	RKQRRNRTTFTLQQL	100 / 6 AA	29
Phosphosite 18:	ARX	Q96QS3	T334	KQRRYRTTFTSYQLE	75 / 8 AA	58
Phosphosite 19:	PROP1	O75360	T75	SRRRHRTTFSPVQLE	62 / 8 AA	25
Phosphosite 20:	PHOX2B	Q99453	T104	KQRRIRTTFTSAQLK	66 / 9 AA	32