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:	IGSF21
Human P-Site:	T440
P-Site Sequence:	NPNIPRGTEDSNGSI
UniProt:	Q96ID5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGSF21	Q96ID5	T440	NPNIPRGTEDSNGSI	100 / 9 AA	52
Phosphosite 1:	RC3H1	Q5TC82	T512	TQLIPRGTDPSYDSS	66 / 9 AA	126
Phosphosite 2:	B3GAT1	Q9P2W7	T167	DPRIPRGTMQRNLAL	66 / 9 AA	38
Phosphosite 3:	TRIM55	Q9BYV6	S474	GQIGPPGSEDSNVRK	75 / 8 AA	60
Phosphosite 4:	KIAA1543	Q9P1Y5	T338	HAASPRGTEASPPQN	85 / 7 AA	135
Phosphosite 5:	RSKL1	Q96S38	S664	QDTISRGSDDSVPVI	62 / 8 AA	119
Phosphosite 6:	NMDAR1 (Glutamate)	Q05586	T550	KKEIPRSTLDSFMQP	75 / 8 AA	105
Phosphosite 7:	STARD9	Q9P2P6	S2690	AEGIPPGSQDSSPEH	55 / 9 AA	507
Phosphosite 8:	B3GAT2	Q9NPZ5	T157	RPGLPRATEQRNAGL	55 / 9 AA	37
Phosphosite 9:	BNC2	Q6ZN30	T941	DASSPAGTEDSHLNG	75 / 8 AA	122
Phosphosite 10:	ZBED4	O75132	T633	DTRVPRGTELSGASS	83 / 6 AA	130
Phosphosite 11:	SLC9A5	Q14940	T822	LPPHPRGTEEPQVPL	71 / 7 AA	99
Phosphosite 12:	DDX25	Q9UHL0	T212	GNRIPRGTDITKQII	83 / 6 AA	55
Phosphosite 13:	SPEG	Q15772	T2771	EKVFVRGTQDSSAVP	55 / 9 AA	354
Phosphosite 14:	STARD9	Q9P2P6	T2346	PESIPLGTEDRISAS	85 / 7 AA	507
Phosphosite 15:	EHBP1	Q8NDI1	T299	ETASPRKTEDSFYNN	85 / 7 AA	140
Phosphosite 16:	NMDAR1 (Glutamate)	Q05586	S549	VKKEIPRSTLDSFMQ	75 / 8 AA	105
Phosphosite 17:	IFT172	Q9UG01	T453	NERCQRGTEDNKKLA	55 / 9 AA	198
Phosphosite 18:	MYO9A	B2RTY4	T1321	GLQSPRGTPDSESSQ	85 / 7 AA	293
Phosphosite 19:	Putative uncharacterized protein LOC400499	Q6ZTK2	T526	GKVIPRNTEGCLVTW	62 / 8 AA	62
Phosphosite 20:	IGSF21	Q96ID5	S443	IPRGTEDSNGSIGPT	100 / 6 AA	52