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:	C3orf21
Human P-Site:	S50
P-Site Sequence:	SGRETFSSATKRLKE
UniProt:	Q8NBI6
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C3orf21	Q8NBI6	S50	SGRETFSSATKRLKE	100 / 9 AA	44
Phosphosite 1:	FGD3	Q5JSP0	S547	SCGETFNSITKRRHH	77 / 9 AA	79
Phosphosite 2:	STAT1	P42224	T510	SWQFSSVTKRGLNVD	85 / 7 AA	87
Phosphosite 3:	NLRP8	Q86W28	S1007	TLCEAFSSQKKREEV	66 / 9 AA	119
Phosphosite 4:	STAT1	P42224	S508	VLSWQFSSVTKRGLN	85 / 7 AA	87
Phosphosite 5:	STAT3	P40763	T516	SWQFSSTTKRGLSIE	85 / 7 AA	88
Phosphosite 6:	STAT3	P40763	T515	LSWQFSSTTKRGLSI	85 / 7 AA	88
Phosphosite 7:	KIAA1958	Q8N8K9	S506	TSSTFSSSTKKLKEK	75 / 8 AA	79
Phosphosite 8:	STAT3	P40763	S514	VLSWQFSSTTKRGLS	85 / 7 AA	88
Phosphosite 9:	KIAA1958	Q8N8K9	S505	ITSSTFSSSTKKLKE	75 / 8 AA	79
Phosphosite 10:	CRP	P02741	Y72	RGYSIFSYATKRQDN	75 / 8 AA	25
Phosphosite 11:	SETD5	Q9C0A6	S779	LPDGTFSSCKKRWIK	66 / 9 AA	158
Phosphosite 12:	EML4	Q9HC35	S109	AGKETLSSAAKSGTE	75 / 8 AA	109
Phosphosite 13:	EML4	Q9HC35	S108	IAGKETLSSAAKSGT	75 / 8 AA	109
Phosphosite 14:	EPS8L3	Q8TE67	T545	LQAENFSTATVRTLG	66 / 9 AA	67
Phosphosite 15:	CCDC76	Q9NUP7	S385	TSLETSNSTTKRQDN	66 / 9 AA	54
Phosphosite 16:	ATRX	P46100	T887	ERKQERETFSSAEGT	100 / 6 AA	283
Phosphosite 17:	IRS2	Q9Y4H2	S1154	HSSETFSSTTTVTPV	85 / 7 AA	137
Phosphosite 18:	MED13L	Q71F56	S776	KNAMSIFSSATKTDV	85 / 7 AA	243
Phosphosite 19:	C3orf21	Q8NBI6	T47	YLGSGRETFSSATKR	100 / 6 AA	44
Phosphosite 20:	ATRX	P46100	S889	KQERETFSSAEGTVD	100 / 6 AA	283