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:	T648
P-Site Sequence:	DLIEKNLTLQEHLRQ
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	T648	DLIEKNLTLQEHLRQ	100 / 9 AA	86
Phosphosite 1:	EEA1	Q15075	T572	QLQEKNHTLQEQVTQ	77 / 9 AA	162
Phosphosite 2:	AMPD1	P23109	T340	STKEKNLTLKELFAK	87 / 8 AA	86
Phosphosite 3:	AKNAD1	Q5T1N1	T440	ATKDKHLTLQQQVHK	55 / 9 AA	93
Phosphosite 4:	USP9X	Q93008	T420	VIKEKALTLQDLDNI	75 / 8 AA	290
Phosphosite 5:	IQGAP1	P46940	T1451	VKEDSNLTLQEKKEK	75 / 8 AA	189
Phosphosite 6:	USP9Y	O00507	T428	VIKEKALTLQDLDNI	75 / 8 AA	291
Phosphosite 7:	OTC	P00480	T178	QILADYLTLQEHYSS	85 / 7 AA	40
Phosphosite 8:	MUL1	Q969V5	T95	KGVIQRLTLQEHKMV	100 / 6 AA	40
Phosphosite 9:	GDA	Q9Y2T3	T364	KVNEKSLTLKEVFRL	75 / 8 AA	51
Phosphosite 10:	SSBP3	Q9BWW4	T51	IRWEKNITLGEPPGF	66 / 9 AA	40
Phosphosite 11:	SSBP4	Q9BWG4	T52	IRWEKNITLGEPPGF	66 / 9 AA	39
Phosphosite 12:	SSBP2	P81877	T53	IRWEKNITLGEPPGF	66 / 9 AA	38
Phosphosite 13:	SARG	Q9BW04	T465	PKPESGLTLQESNTP	75 / 8 AA	64
Phosphosite 14:	PPP2R5B	Q15173	T311	QFLEKDATLTEHVIR	66 / 9 AA	57
Phosphosite 15:	C10orf90	Q96M02	T571	QTPARSLTLQEALEV	62 / 8 AA	78
Phosphosite 16:	STOX2	Q9P2F5	T823	RKFEKNLTLLAPKET	66 / 9 AA	103
Phosphosite 17:	FBXO22	Q8NEZ5	T200	IKDPKNLTLERHQLT	75 / 8 AA	45
Phosphosite 18:	NP60	Q49A26	T182	PKDEKDLTIPESSTV	62 / 8 AA	61
Phosphosite 19:	MIPOL1	Q8TD10	T220	NPEENDMTLQELLNR	62 / 8 AA	52
Phosphosite 20:	NFAT3	Q14934	T463	GYSEKPLTLQMFIGT	85 / 7 AA	95