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:	S550
P-Site Sequence:	EFSSAGHSLQDKQSV
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	S550	EFSSAGHSLQDKQSV	100 / 9 AA	86
Phosphosite 1:	TAS2R41	P59536	S220	RMQHNGHSLQDPSTQ	100 / 6 AA	36
Phosphosite 2:	ELF4	Q99607	S157	TSDQEGHSLEEKASR	62 / 8 AA	71
Phosphosite 3:	UBR1	Q8IWV7	S592	VVQSCGHSLETKSYR	66 / 9 AA	200
Phosphosite 4:	COL4A3BP	Q9Y5P4	S156	SSFKKGHSLREKLAE	71 / 7 AA	71
Phosphosite 5:	Cercam	Q5T4B2	S586	LTGSSGHSLQPQPRD	85 / 7 AA	68
Phosphosite 6:	FLNC	Q14315	S2602	PRLSGGHSLHETSTV	55 / 9 AA	291
Phosphosite 7:	HSPG2	P98160	S3445	GQLPPGHSVQDGVLR	62 / 8 AA	469
Phosphosite 8:	PEX5	P50542	T25	MKLAGHFTQDKALRQ	75 / 8 AA	71
Phosphosite 9:	RPAP1	Q9BWH6	Y390	EEAERAGYSLQELFH	71 / 7 AA	153
Phosphosite 10:	RPAP1	Q9BWH6	S391	EAERAGYSLQELFHL	71 / 7 AA	153
Phosphosite 11:	CECR1	Q9NZK5	S333	GHEDTGHSLHDYKEA	71 / 7 AA	59
Phosphosite 12:	RSBN1L	Q6PCB5	S831	RQHSSAHSNQDKKDD	66 / 9 AA	94
Phosphosite 13:	ATG2A	Q2TAZ0	S1828	PAAPVSRSLQDKRSA	55 / 9 AA	213
Phosphosite 14:	CUX1	Q13948	S274	QLSSANHSLQLASQI	85 / 7 AA	77
Phosphosite 15:	CUTL1	P39880	S263	QLSSANHSLQLASQI	85 / 7 AA	164
Phosphosite 16:	LTBP2	Q14767	S522	LPASPGHSLWDSNNI	75 / 8 AA	195
Phosphosite 17:	KLK8	O60259	S87	TVRLGDHSLQNKDGP	62 / 8 AA	28
Phosphosite 18:	TUFT1	Q9NNX1	S62	SSHSAGHSLASELVE	100 / 6 AA	44
Phosphosite 19:	ZMYND8	Q9ULU4	S33	PHSSNGHSPQDTSTS	66 / 9 AA	132
Phosphosite 20:	TGM7	Q96PF1	T667	GTLVAGHTLQIQLDL	83 / 6 AA	80