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:	KCTD21
Human P-Site:	Y200
P-Site Sequence:	EGLPEEEYTKQNLKR
UniProt:	Q4G0X4
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	KCTD21	Q4G0X4	Y200	EGLPEEEYTKQNLKR	100 / 9 AA	30
Phosphosite 1:	KCTD21	Q4G0X4	T201	GLPEEEYTKQNLKRL	100 / 8 AA	30
Phosphosite 2:	TERF2IP	Q9NYB0	Y238	PDLPEEEYVKEEIQE	75 / 8 AA	44
Phosphosite 3:	CAPRIN1	Q14444	Y283	EPEPAEEYTEQSEVE	66 / 9 AA	78
Phosphosite 4:	PRNP	P04156	Y169	YYRPMDEYSNQNNFV	55 / 9 AA	28
Phosphosite 5:	STAG1	Q8WVM7	Y648	SILCSEEYTIQNRVD	85 / 7 AA	144
Phosphosite 6:	RRAS2	P62070	Y51	DPTIEDSYTKQCVID	71 / 7 AA	23
Phosphosite 7:	RRAS2	P62070	T52	PTIEDSYTKQCVIDD	71 / 7 AA	23
Phosphosite 8:	ABCF3	Q9NUQ8	Y590	PGRPEEEYRHQLGRY	75 / 8 AA	80
Phosphosite 9:	FAM83B	Q5T0W9	T725	EEDEEEVTKRNSPSG	75 / 8 AA	115
Phosphosite 10:	TAF1L	Q8IZX4	S1606	VKYNGPESQYTKTAQ	71 / 7 AA	207
Phosphosite 11:	TAF1	P21675	S1587	VKYNGPESQYTKTAQ	71 / 7 AA	213
Phosphosite 12:	PDE2A	O00408	Y582	MKVSDDEYTKLLHDG	50 / 8 AA	106
Phosphosite 13:	VTN	P04004	Y75	FTMPEDEYTVYDDGE	83 / 6 AA	54
Phosphosite 14:	SCC-112	Q29RF7	Y982	NISIRREYIKQNPMA	83 / 6 AA	151
Phosphosite 15:	CLCA4	Q14CN2	Y117	LPGRDEPYTKQFTEC	62 / 8 AA	101
Phosphosite 16:	METTL6	Q8TCB7	Y118	FSPRAIEYVKQNPLY	83 / 6 AA	33
Phosphosite 17:	TTN	Q8WZ42	Y20178	HQIPQEEYTATGLEE	83 / 6 AA	3816
Phosphosite 18:	CLCA4	Q14CN2	T118	PGRDEPYTKQFTECG	71 / 7 AA	101
Phosphosite 19:	KIAA1429	Q69YN4	Y914	CIPNLIEYVKQNIDN	83 / 6 AA	202
Phosphosite 20:	RXRG	P48443	Y404	VYATLEAYTKQKYPE	71 / 7 AA	51