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:	S242
P-Site Sequence:	SSESRPQSADQHSTH
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	S242	SSESRPQSADQHSTH	100 / 9 AA	44
Phosphosite 1:	HIVEP1	P15822	S681	GYFSRSESADQTVSP	75 / 8 AA	297
Phosphosite 2:	WDR47	O94967	S304	SPMRRPQSADAYMTR	75 / 8 AA	102
Phosphosite 3:	SIX1	Q15475	S225	EEFSPPQSPDQNSVL	66 / 9 AA	32
Phosphosite 4:	Septin-4	O43236	S86	RPPSRPQSSDNQQYF	66 / 9 AA	55
Phosphosite 5:	HIVEP3	Q5T1R4	S399	GYFSRSESAEQQVSP	55 / 9 AA	259
Phosphosite 6:	HIVEP2	P31629	S406	GYFSRSESAEQQISP	55 / 9 AA	269
Phosphosite 7:	FGD5	Q6ZNL6	S835	AFESKQQSADQDAES	75 / 8 AA	160
Phosphosite 8:	Putative ankyrin repeat domain-containing protein 26-like protein	Q6NSI1	S280	IDDSRPMSANEDFDF	62 / 8 AA	35
Phosphosite 9:	MSL3L2	P0C860	S247	LNPSRPQSTESQSTS	71 / 7 AA	51
Phosphosite 10:	QRICH2	Q9H0J4	S1652	QLPSRPQSAQISAGN	100 / 6 AA	181
Phosphosite 11:	WDR86	Q86TI4	T73	AAAHRPQTADPSSCA	83 / 6 AA	53
Phosphosite 12:	RIP140	P48552	S1138	NNASRPHSANGEVYG	71 / 7 AA	127
Phosphosite 13:	FZD10	Q9ULW2	S176	FRPQRPHSAQEHPLK	62 / 8 AA	65
Phosphosite 14:	YAF2	Q8IY57	S144	PPASSAASADQHSQS	66 / 9 AA	20
Phosphosite 15:	ERBB2IP	Q96RT1	S1144	PNASRPQSARPSINE	100 / 6 AA	158
Phosphosite 16:	MYO6	Q9UM54	S539	ENRLPQPSDQHFTSA	71 / 7 AA	150
Phosphosite 17:	KCNH1	O95259	S978	FEISRPQSPESERDI	71 / 7 AA	111
Phosphosite 18:	KIAA0408	Q6ZU52	S553	NLSGRPRSADPRSNY	55 / 9 AA	79
Phosphosite 19:	ATF2	P15336	S314	SEESRPQSLQQPATS	75 / 8 AA	55
Phosphosite 20:	Hcn2	Q9UL51	S821	SRASRPLSASQPSLP	75 / 8 AA	97