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:	CCDC21
Human P-Site:	T488
P-Site Sequence:	RYLADLPTLEDHQKQ
UniProt:	Q6P2H3
Intern. Prot. ID:	IPI00550977

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CCDC21	Q6P2H3	T488	RYLADLPTLEDHQKQ	100 / 9 AA	86
Phosphosite 1:	C6orf204	Q5SZL2	T520	KYLADLPTLDDVQSQ	87 / 8 AA	92
Phosphosite 2:	RGS20	O76081	T244	ELRADLPTWEESPAP	75 / 8 AA	44
Phosphosite 3:	MBTPS1	Q14703	T116	KQKAGLLTLEDHPNI	77 / 9 AA	118
Phosphosite 4:	PROM1	O43490	T426	YIHRNLPTLEEYDSY	62 / 8 AA	97
Phosphosite 5:	AGO61	Q8NAT1	T121	PALLDLSTVEDHNTQ	75 / 8 AA	67
Phosphosite 6:	PVRL2	Q92692	T459	PRYHELPTLEERSGP	62 / 8 AA	58
Phosphosite 7:	ZBTB40	Q9NUA8	T961	KCRMSFPTLQDHRKH	71 / 7 AA	138
Phosphosite 8:	IFI16	Q16666	T74	KIFEDIPTLEDLAET	85 / 7 AA	88
Phosphosite 9:	KIAA1543	Q9P1Y5	T458	PEPGDLPTIEEALQI	62 / 8 AA	135
Phosphosite 10:	SLC34A2	O95436	T74	DDPWNLPTLQDSGIK	71 / 7 AA	76
Phosphosite 11:	HERV-F(c)1_Xq21.33 provirus ancestral Env polyprotein	P60507	T568	HPYSRLPTSEDHYDD	85 / 7 AA	65
Phosphosite 12:	ZNF566	Q969W8	T151	FTHEDLPTLSHHPSF	75 / 8 AA	49
Phosphosite 13:	DHX29	Q7Z478	T306	KFQREMETLEDHPVF	62 / 8 AA	155
Phosphosite 14:	ZNF648	Q5T619	T203	GSNWDLPTQETHTPA	75 / 8 AA	62
Phosphosite 15:	HERV-F(c)1_Xq21.33 provirus ancestral Env polyprotein	P60507	S569	PYSRLPTSEDHYDDA	85 / 7 AA	65
Phosphosite 16:	NOP58	Q9Y2X3	T397	KLEARLRTLEDRGIR	66 / 9 AA	60
Phosphosite 17:	KIAA1009	Q5TB80	T346	TMESDLPTVEELMKP	62 / 8 AA	162
Phosphosite 18:	PLXNB3	Q9ULL4	T1646	PLGENIPTLEDGEEG	71 / 7 AA	207
Phosphosite 19:	ZNF521	Q96K83	T491	EVVNDLNTLQEHIRC	62 / 8 AA	148
Phosphosite 20:	SHANK3	Q9BYB0	S1047	APGADLPSLQPSRSI	71 / 7 AA	186