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:	SNX21
Human P-Site:	S277
P-Site Sequence:	QAQLGTPSGPDRPLL
UniProt:	Q969T3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SNX21	Q969T3	S277	QAQLGTPSGPDRPLL	100 / 9 AA	41
Phosphosite 1:	SNX21	Q969T3	T275	QLQAQLGTPSGPDRP	100 / 7 AA	41
Phosphosite 2:	TOP2B	Q02880	S1139	SSDSGTPSGPDFNYI	100 / 7 AA	183
Phosphosite 3:	VSX2	P58304	S325	TKVLGTVSGPDSLAR	77 / 9 AA	39
Phosphosite 4:	DYTN	A2CJ06	S544	AFNLETPSGPESSVN	75 / 8 AA	65
Phosphosite 5:	CNST	Q6PJW8	S385	SETAGSPSGPDSSED	75 / 8 AA	80
Phosphosite 6:	PLEKHG5	O94827	S952	AGTHGTPSAPSRSLS	75 / 8 AA	117
Phosphosite 7:	MIB2	Q96AX9	S104	LGRHGSPSTPDRTVV	75 / 8 AA	110
Phosphosite 8:	MIB2	Q96AX9	T105	GRHGSPSTPDRTVVV	75 / 8 AA	110
Phosphosite 9:	RNF111	Q6ZNA4	S126	RQHLGTPSDEDNDSS	75 / 8 AA	109
Phosphosite 10:	RP1L1	Q8IWN7	S114	KKPPKTPSGPGRPQE	85 / 7 AA	261
Phosphosite 11:	MDM2	Q00987	S220	SESTGTPSNPDLDAG	85 / 7 AA	55
Phosphosite 12:	DYTN	A2CJ06	T542	MDAFNLETPSGPESS	85 / 7 AA	65
Phosphosite 13:	PI4K2B	Q8TCG2	S5	___MEDPSEPDRLAS	55 / 9 AA	55
Phosphosite 14:	ARG2	P78540	S341	YDQLPTPSSPDESEN	75 / 8 AA	39
Phosphosite 15:	KIAA1920	Q96PW8	S107	FQLLGTPSGLPVDHR	100 / 6 AA	49
Phosphosite 16:	GPR179	Q6PRD1	S1013	NVPQEGPSGPERGHH	83 / 6 AA	257
Phosphosite 17:	CCDC103	Q8IW40	S115	DWRRHLPSGPERYQA	83 / 6 AA	27
Phosphosite 18:	LHX2	P50458	T345	DAALQTGTPSGPASE	100 / 6 AA	44
Phosphosite 19:	CNOT3	O75175	S459	SQALGPPSGPHNPPP	75 / 8 AA	82
Phosphosite 20:	TOP2B	Q02880	T1137	DSSSDSGTPSGPDFN	100 / 6 AA	183