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:	S336
P-Site Sequence:	MYLSSQSSPIHSSTV
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	S336	MYLSSQSSPIHSSTV	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S335	AMYLSSQSSPIHSST	100 / 8 AA	119
Phosphosite 2:	ATG9B	Q674R7	S165	DPEGSQDSPIHGEEQ	66 / 9 AA	101
Phosphosite 3:	BCLAF1	Q9NYF8	S290	RYSPSQNSPIHHIPS	85 / 7 AA	106
Phosphosite 4:	ATP2B2	Q01814	S1234	ATSSSPGSPIHSLET	77 / 9 AA	137
Phosphosite 5:	TBRG1	Q3YBR2	S405	LKSPSQGSPIQSSD_	75 / 8 AA	45
Phosphosite 6:	KIDINS220	Q9ULH0	S1594	GVRSSESSPNHSLHN	77 / 9 AA	197
Phosphosite 7:	SYNJ1	O43426	S1084	GPPSAQSSPIDAQPA	66 / 9 AA	173
Phosphosite 8:	AAMP	Q13685	S248	IWDLKQGSPIHVLKG	83 / 6 AA	47
Phosphosite 9:	USP1	O94782	S67	VVPAAQSSPINCEKR	55 / 9 AA	88
Phosphosite 10:	MCM9	Q9NXL9	T879	VPSHPQSTPVHSPDR	71 / 7 AA	127
Phosphosite 11:	SYNJ1	O43426	S1083	PGPPSAQSSPIDAQP	75 / 8 AA	173
Phosphosite 12:	mahogunin	O60291	S459	DSTLRSPSSPIHEED	85 / 7 AA	61
Phosphosite 13:	STARD9	Q9P2P6	S3437	NGLEDQNSPFHSHLS	71 / 7 AA	507
Phosphosite 14:	mahogunin	O60291	S460	STLRSPSSPIHEEDE	85 / 7 AA	61
Phosphosite 15:	Sos1	Q07889	S1111	VFDSDHSSPFHSSND	66 / 9 AA	152
Phosphosite 16:	TRPT1	Q86TN4	S240	EETECQSSPKHSSRE	75 / 8 AA	28
Phosphosite 17:	C9orf79	Q6ZUB1	S279	TCPVPQSSPLHNQVL	71 / 7 AA	157
Phosphosite 18:	ARHGAP26	Q9UNA1	S697	SSTSSDSSPVRSVAG	66 / 9 AA	92
Phosphosite 19:	DCAF11	Q8TEB1	S446	TLIRCRFSPIHSTGQ	62 / 8 AA	62
Phosphosite 20:	KIDINS220	Q9ULH0	S1593	SGVRSSESSPNHSLH	75 / 8 AA	197