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:	Smad4
Human P-Site:	S155
P-Site Sequence:	LQSNAPSSMMVKDEY
UniProt:	Q13485
Intern. Prot. ID:	IPI00013404

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Smad4	Q13485	S155	LQSNAPSSMMVKDEY	100 / 9 AA	60
Phosphosite 1:	Smad4	Q13485	S154	TLQSNAPSSMMVKDE	100 / 8 AA	60
Phosphosite 2:	ALOXE3	Q9BYJ1	S608	WMPNAPSSMRQPPPQ	100 / 6 AA	81
Phosphosite 3:	ALOXE3	Q9BYJ1	S607	AWMPNAPSSMRQPPP	100 / 6 AA	81
Phosphosite 4:	SLC15A2	Q16348	S499	REDGNSISSMMVKDT	75 / 8 AA	82
Phosphosite 5:	RALGAPB	Q86X10	S892	DKEPNPASMRVKDAA	71 / 7 AA	167
Phosphosite 6:	C11orf21	Q9P2W6	S54	RDQEAPGSMMPPAAA	71 / 7 AA	14
Phosphosite 7:	SNAP91	O60641	S273	DLTQAPSSLMETLEQ	83 / 6 AA	93
Phosphosite 8:	SNAP91	O60641	S272	PDLTQAPSSLMETLE	83 / 6 AA	93
Phosphosite 9:	YY1AP1	Q9H869	S490	THSEAPPSKMVLRIP	62 / 8 AA	88
Phosphosite 10:	GON4	Q3T8J9	S1033	THSEAPPSKMVLRIP	62 / 8 AA	249
Phosphosite 11:	SSBP3	Q9BWW4	S142	PPPHNPSSMMGPHSQ	71 / 7 AA	40
Phosphosite 12:	SSBP3	Q9BWW4	S141	QPPPHNPSSMMGPHS	71 / 7 AA	40
Phosphosite 13:	MTR	Q99707	S1123	DDGDDYSSIMVKALG	83 / 6 AA	141
Phosphosite 14:	POLR2B	P30876	S106	WERDGAPSPMMPNEA	71 / 7 AA	134
Phosphosite 15:	VCAN	P13611	S1991	SDSEGPSSTMVSTSA	62 / 8 AA	373
Phosphosite 16:	VCAN	P13611	S1990	ISDSEGPSSTMVSTS	62 / 8 AA	373
Phosphosite 17:	ZNF624	Q9P2J8	S345	GKAFIASSSLMVHQR	71 / 7 AA	100
Phosphosite 18:	FBXO46	Q6PJ61	S117	GGGSRASSMKVKGHW	71 / 7 AA	69
Phosphosite 19:	VCAN	P13611	T1992	DSEGPSSTMVSTSAF	71 / 7 AA	373
Phosphosite 20:	LATS1	O95835	S408	TNGSIPQSMMVPNRN	83 / 6 AA	127