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:	S189
P-Site Sequence:	LVYDLSTSGSGSGLP
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	S189	LVYDLSTSGSGSGLP	100 / 9 AA	57
Phosphosite 1:	ALK4	P36896	T188	DLVYDLSTSGSGSGL	100 / 8 AA	57
Phosphosite 2:	TGFBR1	P36897	S187	LIYDMTTSGSGSGLP	77 / 9 AA	56
Phosphosite 3:	ALK4	P36896	S187	QDLVYDLSTSGSGSG	100 / 7 AA	57
Phosphosite 4:	RPRD2	Q5VT52	S1132	RVGWFDLSTSGSSFD	100 / 7 AA	156
Phosphosite 5:	LAMA3	Q16787	S2830	GYIELSTSDSGSPIF	77 / 9 AA	367
Phosphosite 6:	RPRD2	Q5VT52	T1133	VGWFDLSTSGSSFDN	100 / 7 AA	156
Phosphosite 7:	RPRD2	Q5VT52	S1134	GWFDLSTSGSSFDNG	100 / 7 AA	156
Phosphosite 8:	TGFBR1	P36897	T186	DLIYDMTTSGSGSGL	75 / 8 AA	56
Phosphosite 9:	RalGDS	Q12967	S681	PSTELSTSGSSHSKS	85 / 7 AA	101
Phosphosite 10:	WDR52	Q96MT7	S291	KEEQLTTSGSGHIKF	75 / 8 AA	112
Phosphosite 11:	WDR52	Q96MT7	T290	DKEEQLTTSGSGHIK	75 / 8 AA	112
Phosphosite 12:	LAMA3	Q16787	T2829	DGYIELSTSDSGSPI	75 / 8 AA	367
Phosphosite 13:	RalGDS	Q12967	T680	APSTELSTSGSSHSK	85 / 7 AA	101
Phosphosite 14:	RalGDS	Q12967	S679	QAPSTELSTSGSSHS	85 / 7 AA	101
Phosphosite 15:	ATXN7L3	Q14CW9	S283	GSSDLSPSDSGSSKT	77 / 9 AA	39
Phosphosite 16:	ALK7	Q8NER5	S177	LIYDVTASGSGSGLP	66 / 9 AA	55
Phosphosite 17:	AGA (aspartylglucosaminidase)	P20933	S149	INEDLSTSASQALHS	85 / 7 AA	37
Phosphosite 18:	AGA (aspartylglucosaminidase)	P20933	T148	FINEDLSTSASQALH	85 / 7 AA	37
Phosphosite 19:	AGA (aspartylglucosaminidase)	P20933	S147	GFINEDLSTSASQAL	85 / 7 AA	37
Phosphosite 20:	ONECUT2	O95948	S471	EKWQDDLSTGGSSST	85 / 7 AA	54