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:	ActR2
Human P-Site:	S274
P-Site Sequence:	TAFHEKGSLSDFLKA
UniProt:	P27037
Intern. Prot. ID:	IPI00015691

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ActR2	P27037	S274	TAFHEKGSLSDFLKA	100 / 9 AA	58
Phosphosite 1:	ActR2B	Q13705	S272	TAFHDKGSLTDYLKG	66 / 9 AA	58
Phosphosite 2:	SCRT1	Q9BWW7	Y40	APLHDKGYLSDYVGP	66 / 9 AA	36
Phosphosite 3:	BMPR1B	O00238	S286	TDYHENGSLYDYLKS	66 / 9 AA	57
Phosphosite 4:	p27Kip1	P46527	S83	WQEVEKGSLPEFYYR	75 / 8 AA	22
Phosphosite 5:	ALK7	Q8NER5	S277	SEYHEQGSLYDYLNR	66 / 9 AA	55
Phosphosite 6:	ActR2	P27037	S276	FHEKGSLSDFLKANV	100 / 7 AA	58
Phosphosite 7:	TGFBR1	P36897	S287	SDYHEHGSLFDYLNR	66 / 9 AA	56
Phosphosite 8:	ALK4	P36896	S289	SDYHEHGSLFDYLNR	66 / 9 AA	57
Phosphosite 9:	PISD	Q9UG56	S347	SPRHSKGSYNDFSFV	66 / 9 AA	47
Phosphosite 10:	Lck	P06239	S323	TEYMENGSLVDFLKT	75 / 8 AA	58
Phosphosite 11:	KIF24	Q5T7B8	S120	NDGFEMCSLSDFSAN	75 / 8 AA	152
Phosphosite 12:	DGUOK	Q16854	S160	KNLFENGSLSDIEWH	75 / 8 AA	32
Phosphosite 13:	ActR2B	Q13705	T274	FHDKGSLTDYLKGNI	71 / 7 AA	58
Phosphosite 14:	SYTL4	Q96C24	S289	DVVHESGSLGDRSKS	75 / 8 AA	76
Phosphosite 15:	CTNND1	O60716	S346	LAQHERGSLASLDSL	55 / 9 AA	108
Phosphosite 16:	PAN2	Q504Q3	S240	DAFSGSLSDFDVHGN	100 / 6 AA	135
Phosphosite 17:	GSTK1	Q9Y2Q3	S96	SVMLEKGSLSAMRFL	75 / 8 AA	25
Phosphosite 18:	CMYA5	Q8N3K9	S2420	PVEESKGSLIDFSED	85 / 7 AA	449
Phosphosite 19:	NLRC5	Q86WI3	S1090	RDMWATGSLPDFPAA	55 / 9 AA	205
Phosphosite 20:	PAN2	Q504Q3	S238	EFDAFSGSLSDFDVH	100 / 6 AA	135