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:	S436
P-Site Sequence:	PYYDLVPSDPSIEEM
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	S436	PYYDLVPSDPSIEEM	100 / 9 AA	57
Phosphosite 1:	ALK7	Q8NER5	S424	PYYDMVPSDPSIEEM	88 / 9 AA	55
Phosphosite 2:	TGFBR1	P36897	S434	PYYDLVPSDPSVEEM	88 / 9 AA	56
Phosphosite 3:	BMPR1B	O00238	S433	PYHDLVPSDPSYEDM	88 / 9 AA	57
Phosphosite 4:	PIP5K1B	O14986	S465	HRPDLVPSTPSLFEA	77 / 9 AA	61
Phosphosite 5:	STRN	O43815	S624	PASVDLVSSDPSHMV	87 / 8 AA	86
Phosphosite 6:	SPEN	Q96T58	S3003	TEVNHVPSGPSIPAD	66 / 9 AA	402
Phosphosite 7:	TOP2A	P11388	S1351	DDEDFVPSDASPPKT	75 / 8 AA	174
Phosphosite 8:	EIF2AK4	Q9P2K8	S892	QTGDLIKSDPSGHLT	75 / 8 AA	187
Phosphosite 9:	NudC	Q9Y266	S260	WWSRLVSSDPEINTK	75 / 8 AA	38
Phosphosite 10:	COL7A1	Q02388	S241	APRDLVLSEPSSQSL	75 / 8 AA	295
Phosphosite 11:	PIP5K1B	O14986	T466	RPDLVPSTPSLFEAA	75 / 8 AA	61
Phosphosite 12:	ALK7	Q8NER5	S427	DMVPSDPSIEEMRKV	100 / 6 AA	55
Phosphosite 13:	ALK4	P36896	S439	DLVPSDPSIEEMRKV	100 / 6 AA	57
Phosphosite 14:	ARAP3	Q8WWN8	S663	SCPGLLPSDPSPGVY	75 / 8 AA	170
Phosphosite 15:	CDYL	Q9Y232	S45	PDGPSDPSISVSSEQ	100 / 6 AA	66
Phosphosite 16:	SPEN	Q96T58	S2463	SDPVTPPSDPSIPIP	100 / 6 AA	402
Phosphosite 17:	C10orf125	A2VDF0	S84	AVMELVPSDKERGLQ	83 / 6 AA	17
Phosphosite 18:	C16orf63	Q96NB1	S135	KGPSLQPSDPSLGRQ	75 / 8 AA	20
Phosphosite 19:	CDYL	Q9Y232	S42	VSAPDGPSDPSISVS	100 / 6 AA	66
Phosphosite 20:	PCIF1	Q9H4Z3	S143	PTGQSVPSSPSIPGT	85 / 7 AA	81