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:	ALK1
Human P-Site:	S238
P-Site Sequence:	FSSRDEQSWFRETEI
UniProt:	P37023
Intern. Prot. ID:	IPI00293271

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ALK1	P37023	S238	FSSRDEQSWFRETEI	100 / 9 AA	56
Phosphosite 1:	ALK2	Q04771	S244	FSSRDEKSWFRETEL	88 / 9 AA	57
Phosphosite 2:	ALK7	Q8NER5	S231	FSSRDERSWFREAEI	88 / 9 AA	55
Phosphosite 3:	TGFBR1	P36897	S241	FSSREERSWFREAEI	77 / 9 AA	56
Phosphosite 4:	ALK4	P36896	S243	FSSREERSWFREAEI	77 / 9 AA	57
Phosphosite 5:	YSK4	Q56UN5	T683	ETERDENTYYREICS	55 / 9 AA	151
Phosphosite 6:	SPTAN1	Q13813	T798	RDVEDEETWIREKEP	62 / 8 AA	285
Phosphosite 7:	SPTAN1	Q13813	S1778	RDMDDEESWIKEKKL	62 / 8 AA	285
Phosphosite 8:	ZNF778	Q96MU6	S55	PALRQDRSWFRASNE	55 / 9 AA	78
Phosphosite 9:	ZNF652	Q9Y2D9	Y80	HETEEQPYFRETRAV	62 / 8 AA	70
Phosphosite 10:	TTN	Q8WZ42	S38	GFPVPEVSWFRDGQV	71 / 7 AA	3816
Phosphosite 11:	SSPO	A2VEC9	S4182	CGPRGQQSRFRSSTS	62 / 8 AA	548
Phosphosite 12:	OSTF1	Q92882	S87	AAKRGNLSWLRECLD	55 / 9 AA	24
Phosphosite 13:	SDK1	Q7Z5N4	T224	SYPRPQVTWFREGHK	55 / 9 AA	242
Phosphosite 14:	NIPSNAP1	Q9BPW8	S42	YSKDNEGSWFRSLFV	71 / 7 AA	33
Phosphosite 15:	KRT16	P08779	T306	KNRRDAETWFLSKTE	57 / 7 AA	51
Phosphosite 16:	C7orf64	Q5RL73	S111	KRKMDEQSFFGGLLH	71 / 7 AA	42
Phosphosite 17:	EPB42	P16452	S101	VEERDAQSWTISVTT	83 / 6 AA	77
Phosphosite 18:	WDFY3	Q8IZQ1	S1862	WQSEEEGSWLREYPV	62 / 8 AA	395
Phosphosite 19:	PCDHGB3	Q9Y5G1	S786	DLLCDEASWFESNDN	71 / 7 AA	101
Phosphosite 20:	LKB1	Q15831	S307	IRQIRQHSWFRKKHP	57 / 7 AA	49