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:	MUC3B
Human P-Site:	S56
P-Site Sequence:	STPSSPSSLSTDIPT
UniProt:	Q9H195
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MUC3B	Q9H195	S56	STPSSPSSLSTDIPT	100 / 9 AA	96
Phosphosite 1:	MUC3A	Q02505	S1697	PTPVTPSSLSTDIPT	87 / 8 AA	266
Phosphosite 2:	MUC3A	Q02505	S538	STTMTPSSLSTDTPS	87 / 8 AA	266
Phosphosite 3:	MUC3A	Q02505	S911	STSXIPSSLSTDIPT	100 / 7 AA	266
Phosphosite 4:	MUC3B	Q9H195	S58	PSSPSSLSTDIPTTS	100 / 7 AA	96
Phosphosite 5:	MUC3A	Q02505	S913	SXIPSSLSTDIPTSQ	100 / 7 AA	266
Phosphosite 6:	MUC3A	Q02505	S1699	PVTPSSLSTDIPTTS	100 / 7 AA	266
Phosphosite 7:	E2F1	Q01094	S341	PPSSPPSSLTTDPSQ	77 / 9 AA	47
Phosphosite 8:	MUC3A	Q02505	S540	TMTPSSLSTDTPSTT	100 / 7 AA	266
Phosphosite 9:	SLFN14	P0C7P3	S357	DTQSAPSSLVTDYNS	77 / 9 AA	104
Phosphosite 10:	PKD3	O94806	S333	TFNGEPSSLGTDTDI	85 / 7 AA	100
Phosphosite 11:	E2F1	Q01094	T343	SSPPSSLTTDPSQSL	85 / 7 AA	47
Phosphosite 12:	ST5	P78524	S592	SLPSSPSSLNEDSLS	77 / 9 AA	126
Phosphosite 13:	HERV-H_22q11.2 provirus ancestral Gag polyprotein	Q8N8A4	S130	VAESSQSSFSTDPSD	77 / 9 AA	30
Phosphosite 14:	MKL2	Q9ULH7	S503	PSPSEQSSLSTDDTN	77 / 9 AA	118
Phosphosite 15:	MAST3	O60307	S830	PVMPKPSSLSADTAA	85 / 7 AA	143
Phosphosite 16:	OTX2	P32243	S237	HLNQSPASLSTQGYG	75 / 8 AA	32
Phosphosite 17:	KLRB1	Q12918	S25	PESSSPSSLPRDVCQ	77 / 9 AA	25
Phosphosite 18:	Protein USP6-like 2	Q6URH7	S9	LLSKSPSSLSANISS	75 / 8 AA	18
Phosphosite 19:	USP6	P35125	S1162	LLSKSPSSLSANISS	75 / 8 AA	159
Phosphosite 20:	TNKS2	Q9H2K2	S834	SGPSSPSSLSAASSL	87 / 8 AA	127