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:	C9orf21
Human P-Site:	S26
P-Site Sequence:	PAPSGPDSGQPLAAA
UniProt:	Q7RTV5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C9orf21	Q7RTV5	S26	PAPSGPDSGQPLAAA	100 / 9 AA	25
Phosphosite 1:	PDZD2	O15018	S1662	SYTSGPDSSQPSSLL	87 / 8 AA	302
Phosphosite 2:	PTPRR	Q15256	S560	PDHKTPDSAQPLLQL	85 / 7 AA	74
Phosphosite 3:	PEX10	O60683	S123	ELQADPDSGRPLQGS	66 / 9 AA	37
Phosphosite 4:	TMPRSS4	Q9NRS4	S7	_MLQDPDSDQPLNSL	75 / 8 AA	48
Phosphosite 5:	ZNF469	Q96JG9	S881	SGPRGPSSGHPLKSK	75 / 8 AA	259
Phosphosite 6:	SFMBT2	Q5VUG0	S683	IGESNPDSGHPKPAR	75 / 8 AA	101
Phosphosite 7:	TMEM145	Q8NBT3	S476	LPRAAPDSGLPLFRD	66 / 9 AA	56
Phosphosite 8:	CPVL	Q9H3G5	S39	SMPPKGDSGQPLFLT	100 / 6 AA	54
Phosphosite 9:	MKI67	P46013	S2952	APKQTPDSGKPLKIS	85 / 7 AA	359
Phosphosite 10:	TFE3	P19532	S224	TPPPGPASAQPLPAP	75 / 8 AA	62
Phosphosite 11:	FMN1	Q68DA7	S482	PHKVGPDSSQPRGDK	85 / 7 AA	158
Phosphosite 12:	ULK4	Q96C45	S328	RQAKGHKSGQPLGHS	75 / 8 AA	65
Phosphosite 13:	PDZD2	O15018	S1663	YTSGPDSSQPSSLLE	85 / 7 AA	302
Phosphosite 14:	SPEN	Q96T58	T1756	VDPEPDSTQPLSKPA	85 / 7 AA	402
Phosphosite 15:	FAM20A	Q96MK3	S534	VEQSAPDSGQANLTS	75 / 8 AA	61
Phosphosite 16:	PBEF	P43490	S314	PLIIRPDSGNPLDTV	85 / 7 AA	56
Phosphosite 17:	TAF1L	Q8IZX4	S654	LSQPGPHSVQPLLKH	75 / 8 AA	207
Phosphosite 18:	GPR37L1	O60883	S98	KDGGTPDSGQELRGN	85 / 7 AA	53
Phosphosite 19:	SPEN	Q96T58	S1755	NVDPEPDSTQPLSKP	75 / 8 AA	402
Phosphosite 20:	FMN1	Q68DA7	S483	HKVGPDSSQPRGDKK	85 / 7 AA	158