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:	C4orf21
Human P-Site:	T930
P-Site Sequence:	PKQIERKTCDPKPVE
UniProt:	Q86YA3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf21	Q86YA3	T930	PKQIERKTCDPKPVE	100 / 9 AA	119
Phosphosite 1:	PIK3C2B	O00750	T1564	KTKVARKTCNPTYNE	62 / 8 AA	185
Phosphosite 2:	MGC35048	Q8N0W5	T125	SETINPKTCSPKEYL	66 / 9 AA	33
Phosphosite 3:	INTU	Q9ULD6	Y107	DYKERKKYEPKLKQF	62 / 8 AA	106
Phosphosite 4:	PRC1	O43663	S373	LEFERKASDPNRFTN	62 / 8 AA	72
Phosphosite 5:	USP47	Q96K76	T606	QREIERNTCKIKLFC	66 / 9 AA	157
Phosphosite 6:	RIMS3	Q9UJD0	T217	KTKMTKKTCDPLYQQ	62 / 8 AA	33
Phosphosite 7:	CCDC27	Q2M243	T106	ISRYYRKTSEPKDAA	71 / 7 AA	75
Phosphosite 8:	EEF2	P13639	S387	EAAMGIKSCDPKGPL	55 / 9 AA	95
Phosphosite 9:	Chk2	O96017	T242	KLAFERKTCKKVAIK	83 / 6 AA	61
Phosphosite 10:	CCDC27	Q2M243	S107	SRYYRKTSEPKDAAS	71 / 7 AA	75
Phosphosite 11:	TEX11	Q8IYF3	T682	VILIARKTCLLMAVA	83 / 6 AA	108
Phosphosite 12:	NCBP1	Q09161	T331	SHWKERKTCAAQLVS	71 / 7 AA	92
Phosphosite 13:	AATF	Q9NY61	T476	RELIERKTSSLDPND	83 / 6 AA	63
Phosphosite 14:	LOC643677	Q8NDH2	T2112	VWFQERNTCESVDLR	57 / 7 AA	278
Phosphosite 15:	Nedd4-BP2	Q86UW6	T16	GGNPFRKTANPKEVV	71 / 7 AA	199
Phosphosite 16:	KIAA0774	Q5JR59	T53	SSHDESKTCDLGDEI	83 / 6 AA	150
Phosphosite 17:	KCNU1	A8MYU2	T1133	AKENERKTSDEVYDE	83 / 6 AA	130
Phosphosite 18:	KIAA0774	Q5JR59	S51	VSSSHDESKTCDLGD	83 / 6 AA	150
Phosphosite 19:	ADAMTS9	Q9P2N4	T1726	LKPEERKTCRNVYNC	100 / 5 AA	216
Phosphosite 20:	ADAMTSL2	Q86TH1	T679	VRPEERKTCRNPACG	100 / 5 AA	105