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:	ALK4
Human P-Site:	Y426
P-Site Sequence:	SGGVHEEYQLPYYDL
UniProt:	P36896
Intern. Prot. ID:	IPI00005732

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ALK4	P36896	Y426	SGGVHEEYQLPYYDL	100 / 9 AA	57
Phosphosite 1:	TGFBR1	P36897	Y424	IGGIHEDYQLPYYDL	77 / 9 AA	56
Phosphosite 2:	ALK7	Q8NER5	Y414	VGGIVEEYQLPYYDM	77 / 9 AA	55
Phosphosite 3:	BMPR1A	P36894	Y453	TGGIVEEYQLPYYNM	77 / 9 AA	60
Phosphosite 4:	BMPR1B	O00238	Y423	SGGIVEEYQLPYHDL	77 / 9 AA	57
Phosphosite 5:	Telethonin	O15273	Y81	LGRGLQEYQLPYQRV	85 / 7 AA	17
Phosphosite 6:	TSHZ1	Q6ZSZ6	Y583	YPSIHAAYQLPGTVK	62 / 8 AA	118
Phosphosite 7:	TSHZ3	Q63HK5	Y554	YPSIHAAYQLPNMMK	62 / 8 AA	119
Phosphosite 8:	DDX60	Q8IY21	Y1553	LADMNQEYQLPLSKI	62 / 8 AA	198
Phosphosite 9:	LGTN	P41214	Y564	GWLLLEEYQLPRKHI	75 / 8 AA	65
Phosphosite 10:	PAPLN	O95428	Y295	NPGVHYEYHLPLRRP	75 / 8 AA	138
Phosphosite 11:	EFNA1	P20827	Y77	YLVEHEEYQLCQPQS	100 / 6 AA	24
Phosphosite 12:	PARP4	Q9UKK3	Y598	NFSKVEDYQLPDAKT	83 / 6 AA	193
Phosphosite 13:	PHKA1	P46020	Y384	PDRVDEEYQNPHTVD	66 / 9 AA	137
Phosphosite 14:	ZNF148	Q9UQR1	Y724	AQPVHQAYQMSSFEQ	50 / 8 AA	89
Phosphosite 15:	BMPR1B	O00238	Y427	VEEYQLPYHDLVPSD	100 / 5 AA	57
Phosphosite 16:	Telethonin	O15273	Y85	LQEYQLPYQRVLPLP	100 / 5 AA	17
Phosphosite 17:	DHX36	Q9H2U1	Y626	RASLLDDYQLPEILR	50 / 8 AA	115
Phosphosite 18:	BMPR1A	P36894	Y457	VEEYQLPYYNMVPSD	100 / 5 AA	60
Phosphosite 19:	ALK7	Q8NER5	Y418	VEEYQLPYYDMVPSD	100 / 5 AA	55
Phosphosite 20:	TGFBR1	P36897	Y428	HEDYQLPYYDLVPSD	100 / 5 AA	56