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:	C9orf21
Human P-Site:	Y126
P-Site Sequence:	VDPEREIYKRLGMKR
UniProt:	Q7RTV5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C9orf21	Q7RTV5	Y126	VDPEREIYKRLGMKR	100 / 9 AA	25
Phosphosite 1:	SENP1	Q9P0U3	Y194	QEEEREIYRQLLQMV	75 / 8 AA	73
Phosphosite 2:	PKCd	Q05655	T588	KLFEREPTKRLGVTG	77 / 9 AA	78
Phosphosite 3:	PDS5B	Q9NTI5	T584	EGCVREITKKLGNPK	75 / 8 AA	165
Phosphosite 4:	LBA1	O15050	Y1329	GRLTEEVYKKLGRKR	71 / 7 AA	284
Phosphosite 5:	SH2D4A	Q9H788	Y257	AKQAREDYKRLSLGA	75 / 8 AA	53
Phosphosite 6:	KRI1	Q8N9T8	Y73	PQQERDFYKTLSLLK	55 / 9 AA	83
Phosphosite 7:	KIAA0564	A3KMH1	Y1695	LTGEKAIYKRRGELE	66 / 9 AA	211
Phosphosite 8:	HELLS	Q9NRZ9	Y317	QKLVRNIYKRKGTLQ	75 / 8 AA	97
Phosphosite 9:	GDI1	P31150	Y421	CNDIKDIYKRMAGTA	50 / 8 AA	51
Phosphosite 10:	DNAJB2	P25686	Y65	DKHKREIYDRYGREG	75 / 8 AA	36
Phosphosite 11:	SOX21	Q9Y651	S39	KMHNSEISKRLGAEW	85 / 7 AA	29
Phosphosite 12:	SOX2	P48431	S72	KMHNSEISKRLGAEW	85 / 7 AA	34
Phosphosite 13:	SOX3	P41225	S170	KMHNSEISKRLGADW	85 / 7 AA	45
Phosphosite 14:	SOX14	O95416	S39	KMHNSEISKRLGAEW	85 / 7 AA	26
Phosphosite 15:	SOX1	O00570	S82	KMHNSEISKRLGAEW	85 / 7 AA	39
Phosphosite 16:	UBE2D4	Q9Y2X8	Y134	YKADREKYNRLAREW	55 / 9 AA	17
Phosphosite 17:	SORBS1	Q9BX66	Y682	LENERQIYKSVLEGG	62 / 8 AA	142
Phosphosite 18:	LCHN	A4D1U4	Y361	NSADREKYRRLNEQR	55 / 9 AA	51
Phosphosite 19:	DYNC1H1	Q14204	Y1069	DMQAENIYNRLGEDL	71 / 7 AA	532
Phosphosite 20:	DNAJB4	Q9UDY4	Y64	DPKKREIYDQFGEEG	62 / 8 AA	38