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:	S266
P-Site Sequence:	LKSESSSSCEELNSE
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	S266	LKSESSSSCEELNSE	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S265	LLKSESSSSCEELNS	100 / 8 AA	119
Phosphosite 2:	KCTD8	Q6ZWB6	S351	KGSESGTSCNELSTS	66 / 9 AA	52
Phosphosite 3:	C4orf21	Q86YA3	S264	ALLKSESSSSCEELN	100 / 7 AA	119
Phosphosite 4:	SYT14	Q8NB59	S407	SCSESTSSCQSLEHG	66 / 9 AA	62
Phosphosite 5:	KCNK18	Q7Z418	S252	QAMERSNSCPELVLG	66 / 9 AA	44
Phosphosite 6:	MTMR2	Q13614	S6	__MEKSSSCESLGSQ	77 / 9 AA	73
Phosphosite 7:	KLF6	Q99612	S115	VSSESSDSSEELSPT	77 / 9 AA	32
Phosphosite 8:	PHLPP	O60346	S375	SGGGSSSSSEELEAD	87 / 8 AA	185
Phosphosite 9:	APBB2	Q92870	S147	PHPQDSSSCEILPSQ	66 / 9 AA	83
Phosphosite 10:	PHLPP	O60346	S376	GGGSSSSSEELEADA	87 / 8 AA	185
Phosphosite 11:	MTMR2	Q13614	S4	____METSSSCESLG	85 / 7 AA	73
Phosphosite 12:	TBC1D4	O60343	Y1191	DELQESSYSCEDSET	75 / 8 AA	147
Phosphosite 13:	BTBD12	Q8IY92	S1721	LSSQSSSSCEFGAAF	85 / 7 AA	200
Phosphosite 14:	MTMR2	Q13614	S5	___METSSSCESLGS	85 / 7 AA	73
Phosphosite 15:	SP140	Q13342	S196	EPGFSSESCEQLALP	75 / 8 AA	100
Phosphosite 16:	CASP8AP2	Q9UKL3	S1804	LTTESPSSCEVKKDE	85 / 7 AA	223
Phosphosite 17:	IRAK3	Q9Y616	S537	EACNMPSSSCEESWF	85 / 7 AA	68
Phosphosite 18:	KIAA0586	Q9BVV6	S406	EKTNRFPSCEELETT	83 / 6 AA	169
Phosphosite 19:	HESRG	Q1W209	S60	EEPGPSSSCEEPGIQ	85 / 7 AA	9
Phosphosite 20:	HESRG	Q1W209	S59	GEEPGPSSSCEEPGI	85 / 7 AA	9