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:	S276
P-Site Sequence:	FHEKGSLSDFLKANV
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	S276	FHEKGSLSDFLKANV	100 / 9 AA	58
Phosphosite 1:	ActR2B	Q13705	T274	FHDKGSLTDYLKGNI	77 / 9 AA	58
Phosphosite 2:	BMPR1A	P36894	Y318	YHENGSLYDFLKCAT	77 / 9 AA	60
Phosphosite 3:	ActR2	P27037	S274	TAFHEKGSLSDFLKA	100 / 7 AA	58
Phosphosite 4:	BMPR1B	O00238	Y288	YHENGSLYDYLKSTT	66 / 9 AA	57
Phosphosite 5:	CALB2	P22676	S137	NELKGFLSDLLKKAN	77 / 9 AA	32
Phosphosite 6:	ALK1	P37023	Y286	YHEHGSLYDFLQRQT	75 / 8 AA	56
Phosphosite 7:	PRPF4B	Q13523	S509	DKFKGSLSEGMKVEQ	66 / 9 AA	117
Phosphosite 8:	ActR2B	Q13705	S272	TAFHDKGSLTDYLKG	71 / 7 AA	58
Phosphosite 9:	p27Kip1	P46527	S83	WQEVEKGSLPEFYYR	71 / 7 AA	22
Phosphosite 10:	ActR2B	Q13705	Y276	DKGSLTDYLKGNIIT	71 / 7 AA	58
Phosphosite 11:	PAN2	Q504Q3	S240	DAFSGSLSDFDVHGN	100 / 6 AA	135
Phosphosite 12:	LSM6	P62312	S9	SLRKQTPSDFLKQII	66 / 9 AA	9
Phosphosite 13:	TRIM13	O60858	S352	ATWKGCLSNFSSYLT	71 / 7 AA	47
Phosphosite 14:	PAN2	Q504Q3	S238	EFDAFSGSLSDFDVH	100 / 6 AA	135
Phosphosite 15:	FAM190A	Q9C0I3	S791	QLPSLCLSNFLKDKE	71 / 7 AA	100
Phosphosite 16:	TRAF3IP3	Q9Y228	Y200	EIIQLSDYLKEALQR	83 / 6 AA	64
Phosphosite 17:	CMYA5	Q8N3K9	S2420	PVEESKGSLIDFSED	85 / 7 AA	449
Phosphosite 18:	CAPN8	A6NHC0	S328	SMSQMSLSDFVRQFS	71 / 7 AA	77
Phosphosite 19:	TRAF3IP3	Q9Y228	S198	DKEIIQLSDYLKEAL	83 / 6 AA	64
Phosphosite 20:	CYB5R4	Q7L1T6	S476	HISPALLSEFLKRNL	83 / 6 AA	59