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:	HTR4
Human P-Site:	S236
P-Site Sequence:	LQRAGASSESRPQSA
UniProt:	Q13639
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	HTR4	Q13639	S236	LQRAGASSESRPQSA	100 / 9 AA	44
Phosphosite 1:	GPRASP1	Q5JY77	S453	SMGTGASSKSRPRTD	77 / 9 AA	157
Phosphosite 2:	B4GALT1	P15291	S92	PPPLGASSQPRPGGD	75 / 8 AA	44
Phosphosite 3:	NUP153	P49790	S965	DFKFGVSSESKPEEV	75 / 8 AA	154
Phosphosite 4:	THBS2	P35442	S259	TEYVGPSSERRPEVC	66 / 9 AA	130
Phosphosite 5:	MLL3	Q8NEZ4	S4048	PSTAGKSSESRRNDI	77 / 9 AA	541
Phosphosite 6:	C7orf52	Q8N8M0	S29	ARDAEPSSETRPQEV	66 / 9 AA	41
Phosphosite 7:	ZNF650	Q6ZT12	S1246	CGQSGPSSEDRPTGL	66 / 9 AA	84
Phosphosite 8:	ARHGAP29	Q52LW3	S548	SESTGGSSESRSLDS	66 / 9 AA	142
Phosphosite 9:	TAF6L	Q9Y6J9	S521	SGPAASESRPLPRVH	85 / 7 AA	68
Phosphosite 10:	TAF6L	Q9Y6J9	S519	SASGPAASESRPLPR	85 / 7 AA	68
Phosphosite 11:	ARHGAP29	Q52LW3	S547	DSESTGGSSESRSLD	75 / 8 AA	142
Phosphosite 12:	RIN2	Q8WYP3	S418	APPPSSESRPPCHGG	85 / 7 AA	100
Phosphosite 13:	COL14A1	Q05707	S1721	PPGPAGPSGESRPGS	75 / 8 AA	194
Phosphosite 14:	RIN2	Q8WYP3	S416	TRAPPPSSESRPPCH	85 / 7 AA	100
Phosphosite 15:	SALL2	Q9Y467	S79	PNNSSASSEPRPEGH	75 / 8 AA	105
Phosphosite 16:	KIAA1853	A7MD48	S197	SRSQSSESRPSSCES	100 / 6 AA	69
Phosphosite 17:	KIAA1853	A7MD48	S195	CPSRSQSSESRPSSC	100 / 6 AA	69
Phosphosite 18:	ETV6	P41212	S251	HCPASSESHPKPSSP	85 / 7 AA	53
Phosphosite 19:	ZNF839	A8K0R7	S476	GEQLEGASSEKRERE	85 / 7 AA	87
Phosphosite 20:	ETV6	P41212	S249	NNHCPASSESHPKPS	85 / 7 AA	53