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:	ACTR1B
Human P-Site:	Y338
P-Site Sequence:	SAPQERLYSTWIGGS
UniProt:	P42025
Intern. Prot. ID:	IPI00029469

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ACTR1B	P42025	Y338	SAPQERLYSTWIGGS	100 / 9 AA	42
Phosphosite 1:	ACTR1A	P61163	Y338	SAPQERLYSTWIGGS	100 / 9 AA	43
Phosphosite 2:	ACTR1A	P61163	S339	APQERLYSTWIGGSI	100 / 8 AA	43
Phosphosite 3:	ACTR1B	P42025	S339	APQERLYSTWIGGSI	100 / 8 AA	42
Phosphosite 4:	ACTR1A	P61163	T340	PQERLYSTWIGGSIL	100 / 7 AA	43
Phosphosite 5:	ACTBL2	Q562R1	Y338	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 6:	ACTA1	P68133	Y339	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 7:	ACTC1	P68032	Y339	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 8:	ACTG2	P63267	Y338	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 9:	ACTG1	P63261	Y337	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 10:	ACTA2	P62736	Y339	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 11:	ACTB	P60709	Y337	IAPPERKYSVWIGGS	66 / 9 AA	42
Phosphosite 12:	ACTBL2	Q562R1	S339	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 13:	ACTA1	P68133	S340	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 14:	ACTC1	P68032	S340	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 15:	ACTG2	P63267	S339	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 16:	ACTG1	P63261	S338	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 17:	ACTA2	P62736	S340	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 18:	ACTB	P60709	S338	APPERKYSVWIGGSI	75 / 8 AA	42
Phosphosite 19:	SLC6A18	Q96N87	Y563	PSRQEKLYPGWARAA	62 / 8 AA	71
Phosphosite 20:	POLR1A	O95602	Y388	QSLIDKLYNIWIRLQ	50 / 8 AA	195