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:	HTR3B
Human P-Site:	S221
P-Site Sequence:	STYSILQSSAGGFAQ
UniProt:	O95264
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	HTR3B	O95264	S221	STYSILQSSAGGFAQ	100 / 9 AA	50
Phosphosite 1:	GHDC	Q8N2G8	S431	VESSILDSSAGSAPH	87 / 8 AA	58
Phosphosite 2:	CENPE	Q02224	S295	LTRILQNSLGGNAKT	75 / 8 AA	316
Phosphosite 3:	IGHE	P01854	S119	PTVKILQSSCDGGGH	75 / 8 AA	47
Phosphosite 4:	KIAA1117	Q5JWR5	S1108	QQIEILQSSDSGCSQ	75 / 8 AA	277
Phosphosite 5:	KIAA1117	Q5JWR5	S1109	QIEILQSSDSGCSQS	75 / 8 AA	277
Phosphosite 6:	GBX1	Q14549	S222	DDGFLDSSAGGPGAL	75 / 8 AA	38
Phosphosite 7:	MAGE-C1	O60732	S426	TLLSILQSSPESAQS	66 / 9 AA	124
Phosphosite 8:	IGHE	P01854	S120	TVKILQSSCDGGGHF	75 / 8 AA	47
Phosphosite 9:	MPHOSPH1	Q96Q89	S1746	HSPSILQSKAKKIIE	85 / 7 AA	211
Phosphosite 10:	GBX1	Q14549	S221	EDDGFLDSSAGGPGA	75 / 8 AA	38
Phosphosite 11:	GHDC	Q8N2G8	S432	ESSILDSSAGSAPHY	85 / 7 AA	58
Phosphosite 12:	COX7B2	Q8TF08	S21	KIQSILQSMARHSHV	85 / 7 AA	9
Phosphosite 13:	GRHL3	Q8TE85	S79	EKRILSSSTGGRNDQ	75 / 8 AA	70
Phosphosite 14:	CHD9	Q3L8U1	S289	SPNSLLQSSAVLASN	85 / 7 AA	326
Phosphosite 15:	C16orf71	Q8IYS4	S274	DLDDILQSLAGQEDN	85 / 7 AA	56
Phosphosite 16:	SH3RF1	Q7Z6J0	S115	SSKDLQSSQGGQQPR	85 / 7 AA	93
Phosphosite 17:	SPANXA1	Q9NS26	S5	___MDKQSSAGGVKR	100 / 6 AA	11
Phosphosite 18:	SPANXA1	Q9NS26	S6	__MDKQSSAGGVKRS	100 / 6 AA	11
Phosphosite 19:	SIX4	Q9UIU6	S426	KEFKVLQSSANSATT	62 / 8 AA	81
Phosphosite 20:	MFSD2A	Q8NA29	S23	LPTSILQSTERPAQV	71 / 7 AA	60