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:	S265
P-Site Sequence:	LLKSESSSSCEELNS
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	S265	LLKSESSSSCEELNS	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S266	LKSESSSSCEELNSE	100 / 8 AA	119
Phosphosite 2:	C4orf21	Q86YA3	S264	ALLKSESSSSCEELN	100 / 8 AA	119
Phosphosite 3:	BTBD12	Q8IY92	S1720	SLSSQSSSSCEFGAA	87 / 8 AA	200
Phosphosite 4:	BTBD12	Q8IY92	S1719	SSLSSQSSSSCEFGA	87 / 8 AA	200
Phosphosite 5:	MTMR2	Q13614	S4	____METSSSCESLG	85 / 7 AA	73
Phosphosite 6:	TBC1D4	O60343	Y1191	DELQESSYSCEDSET	75 / 8 AA	147
Phosphosite 7:	RGL1	Q9NZL6	S587	PQKKLSESSSSCSSI	100 / 7 AA	87
Phosphosite 8:	C4orf21	Q86YA3	S263	LALLKSESSSSCEEL	100 / 7 AA	119
Phosphosite 9:	GNL1	P36915	S563	EEEELSSSCEEEGEE	87 / 8 AA	69
Phosphosite 10:	GNL1	P36915	S562	EEEEELSSSCEEEGE	87 / 8 AA	69
Phosphosite 11:	MTMR2	Q13614	S5	___METSSSCESLGS	85 / 7 AA	73
Phosphosite 12:	CASP8AP2	Q9UKL3	S1804	LTTESPSSCEVKKDE	85 / 7 AA	223
Phosphosite 13:	SYT14	Q8NB59	S406	MSCSESTSSCQSLEH	75 / 8 AA	62
Phosphosite 14:	BTBD12	Q8IY92	S1721	LSSQSSSSCEFGAAF	85 / 7 AA	200
Phosphosite 15:	KCTD8	Q6ZWB6	T350	DKGSESGTSCNELST	66 / 9 AA	52
Phosphosite 16:	IRAK3	Q9Y616	S537	EACNMPSSSCEESWF	85 / 7 AA	68
Phosphosite 17:	C11orf16	Q9NQ32	S340	AVSSSSSSSCEQDGV	77 / 9 AA	44
Phosphosite 18:	SOX30	O94993	S685	ECTHSENSRSCENMN	75 / 8 AA	82
Phosphosite 19:	HESRG	Q1W209	S60	EEPGPSSSCEEPGIQ	85 / 7 AA	9
Phosphosite 20:	HESRG	Q1W209	S59	GEEPGPSSSCEEPGI	85 / 7 AA	9