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:	S793
P-Site Sequence:	EDLGKIRSPPPDHVE
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	S793	EDLGKIRSPPPDHVE	100 / 9 AA	119
Phosphosite 1:	SGK269	Q9H792	S1292	EVVGKIRSLHTDALK	66 / 9 AA	193
Phosphosite 2:	RCC1	P18754	S11	KRIAKRRSPPADAIP	66 / 9 AA	45
Phosphosite 3:	SNX21	Q969T3	S99	SGEDAERSPPPDGQW	100 / 6 AA	41
Phosphosite 4:	AKR7A2	O43488	S20	AVHCALRSPPPEARA	71 / 7 AA	40
Phosphosite 5:	C1orf74	Q96LT6	S30	LGMGKRRSPPQAICL	85 / 7 AA	30
Phosphosite 6:	FAM90A23	A8MXZ1	S32	RAPVGPRSPPPDEED	100 / 6 AA	50
Phosphosite 7:	FAM90A7	A6NKC0	S32	RAPVGPRSPPPDEED	100 / 6 AA	50
Phosphosite 8:	GUCY2D	Q02846	S762	EVVQRVRSPPPLCRP	71 / 7 AA	120
Phosphosite 9:	BAT2	P48634	T878	DEVAKIQTPPPKKEP	62 / 8 AA	229
Phosphosite 10:	CACNB3	P54284	S152	SDIGNRRSPPPSLAK	75 / 8 AA	55
Phosphosite 11:	HOXC4	P09017	S224	LPNTKVRSAPPAGAA	62 / 8 AA	30
Phosphosite 12:	XYLT1	Q86Y38	S729	KKVFKIASPPSDFGR	75 / 8 AA	108
Phosphosite 13:	B3GALNT2	Q8NCR0	S25	HLWLRLRSPPPACAS	62 / 8 AA	57
Phosphosite 14:	ZNF496	Q96IT1	S23	EEPRKMRSPPGENPS	62 / 8 AA	67
Phosphosite 15:	NMDAR2D	O15399	S471	SQLNRTHSPPPDAPR	55 / 9 AA	144
Phosphosite 16:	PRPF4B	Q13523	S578	QSSTRTRSPSPDDIL	62 / 8 AA	117
Phosphosite 17:	PRDM16	Q9HAZ2	S934	HHPFNFRSPPPTLSD	71 / 7 AA	140
Phosphosite 18:	JMJD1C	Q15652	S617	EDKLHKRSPPPETIK	83 / 6 AA	285
Phosphosite 19:	ABCC3	O15438	S1055	LLHNKIRSPQSFFDT	62 / 8 AA	169
Phosphosite 20:	LRWD1	Q9UFC0	S25	DRLGKIRSLDLSGLE	100 / 5 AA	71