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:	S502
P-Site Sequence:	QSQQLKDSELKSTEL
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	S502	QSQQLKDSELKSTEL	100 / 9 AA	86
Phosphosite 1:	VAX1	Q5SQQ9	S163	KKDQGKDSELRSVVS	77 / 9 AA	35
Phosphosite 2:	nNOS	P29475	T404	STYQLKDTELIYGAK	85 / 7 AA	161
Phosphosite 3:	MTMR15	Q9Y2M0	S319	AKIQLSDSEAKSHSS	77 / 9 AA	114
Phosphosite 4:	MYH13	Q9UKX3	S1657	VQGQLKDSQLHLDDA	85 / 7 AA	224
Phosphosite 5:	KRR1	Q13601	S232	KRELAKDSELRSQSW	85 / 7 AA	44
Phosphosite 6:	DDX20	Q9UHI6	S685	SDNQLKDSESTPVDD	100 / 6 AA	92
Phosphosite 7:	SPEN	Q96T58	S1629	SAPENKDSELKTPPS	66 / 9 AA	402
Phosphosite 8:	GSS	P48637	S389	ALKQLKDSEERASYI	100 / 6 AA	52
Phosphosite 9:	eNOS	P29474	S168	GTYQLRESELVFGAK	71 / 7 AA	133
Phosphosite 10:	PCSK1	P29120	S716	KPSQLKDSEDSLYND	100 / 6 AA	84
Phosphosite 11:	HMG2L1	Q9UGU5	S62	SKKKLKDSELYFLGT	100 / 6 AA	66
Phosphosite 12:	AKAP13	Q12802	S1737	HSPSKKDSEWKSGTK	85 / 7 AA	308
Phosphosite 13:	OR4C16	Q8NGL9	T290	VIYTLKNTEVKSAMR	62 / 8 AA	35
Phosphosite 14:	C6orf167	Q6ZRQ5	S1204	LTQSLKDSEQKWGLG	75 / 8 AA	142
Phosphosite 15:	C14orf102	Q9H7Z3	S818	GSRELKDSDLCELSL	71 / 7 AA	133
Phosphosite 16:	R3HDM2	Q9Y2K5	S318	SRQSSTDSELKSLEP	100 / 6 AA	107
Phosphosite 17:	CDC42BPB	Q9Y5S2	S914	LESKLKDSEAKNREL	75 / 8 AA	194
Phosphosite 18:	CHD6	Q8TD26	S2018	PTYPLEGSELKSEDM	66 / 9 AA	305
Phosphosite 19:	OSBPL8	Q9BZF1	S314	DNFQLNDSEIERQHF	71 / 7 AA	101
Phosphosite 20:	TTC23	Q5W5X9	S305	SMAHLKDSEGMGRTK	83 / 6 AA	50