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:	T377
P-Site Sequence:	APNQRVGTKRYMAPE
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	T377	APNQRVGTKRYMAPE	100 / 9 AA	57
Phosphosite 1:	TGFBR1	P36897	T375	APNHRVGTKRYMAPE	88 / 9 AA	56
Phosphosite 2:	ALK2	Q04771	T378	GNNPRVGTKRYMAPE	88 / 9 AA	57
Phosphosite 3:	ALK1	P37023	T372	GNNPRVGTKRYMAPE	88 / 9 AA	56
Phosphosite 4:	BMPR1A	P36894	T404	PLNTRVGTKRYMAPE	100 / 8 AA	60
Phosphosite 5:	BMPR1B	O00238	T374	PPNTRVGTKRYMPPE	100 / 8 AA	57
Phosphosite 6:	ALK7	Q8NER5	Y368	PKVGTKRYMAPEMLD	100 / 6 AA	55
Phosphosite 7:	ALK2	Q04771	Y381	PRVGTKRYMAPEVLD	100 / 6 AA	57
Phosphosite 8:	ALK1	P37023	Y375	PRVGTKRYMAPEVLD	100 / 6 AA	56
Phosphosite 9:	TGFBR1	P36897	Y378	HRVGTKRYMAPEVLD	100 / 6 AA	56
Phosphosite 10:	ALK4	P36896	Y380	QRVGTKRYMAPEVLD	100 / 6 AA	57
Phosphosite 11:	BMPR1A	P36894	Y407	TRVGTKRYMAPEVLD	100 / 6 AA	60
Phosphosite 12:	BMPR1B	O00238	Y377	TRVGTKRYMPPEVLD	100 / 6 AA	57
Phosphosite 13:	GRK7	Q8WTQ7	T353	PITQRAGTNGYMAPE	66 / 9 AA	62
Phosphosite 14:	BMPR2	Q13873	T379	AAISEVGTIRYMAPE	85 / 7 AA	115
Phosphosite 15:	C17orf100	A8MU93	T16	QSSPRVGTTRYTETS	75 / 8 AA	18
Phosphosite 16:	C17orf100	A8MU93	T17	SSPRVGTTRYTETST	85 / 7 AA	18
Phosphosite 17:	CASK	O14936	T182	VAGGRVGTPHFMAPE	62 / 8 AA	105
Phosphosite 18:	JMJD2A	O75164	T396	LAKHRIGTKRHRVCL	62 / 8 AA	121
Phosphosite 19:	DOK1	Q99704	T19	LQSQRFGTKRWRKTW	75 / 8 AA	52
Phosphosite 20:	PLD2	O14939	T72	VTAQVVGTERYTSGS	75 / 8 AA	106