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:	XKR4
Human P-Site:	Y646
P-Site Sequence:	LIQERLEYETTL___
UniProt:	Q5GH76
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	XKR4	Q5GH76	Y646	LIQERLEYETTL___	100 / 9 AA	72
Phosphosite 1:	PPFIBP1	Q86W92	Y224	MDSERLQYEKKLKST	66 / 9 AA	114
Phosphosite 2:	XKR4	Q5GH76	T648	QERLEYETTL_____	100 / 7 AA	72
Phosphosite 3:	KIF1A	Q12756	Y667	LEQQRLDYESKLEAL	55 / 9 AA	191
Phosphosite 4:	KIF1B	O60333	Y707	LEQQRLDYESKLQAL	55 / 9 AA	204
Phosphosite 5:	TTC14	Q96N46	Y566	GKQDRLQYEKTQIKE	62 / 8 AA	88
Phosphosite 6:	C1orf101	Q5SY80	Y43	RSTIKLEYEGTLFTE	75 / 8 AA	110
Phosphosite 7:	XKR7	Q5GH72	Y575	TSQELLEYETTV___	77 / 9 AA	64
Phosphosite 8:	C20orf23	Q96L93	Y1069	KDQERLEYEIQQLKQ	85 / 7 AA	152
Phosphosite 9:	CCDC46	Q8N8E3	Y907	ITYIRQEYETKLKGL	75 / 8 AA	113
Phosphosite 10:	XKR4	Q5GH76	T649	ERLEYETTL______	100 / 6 AA	72
Phosphosite 11:	PPFIBP1	Q86W92	Y193	VEKDRLDYEDKFRDT	44 / 9 AA	114
Phosphosite 12:	ENC1	O14682	Y211	TEDERLVYESAINWI	55 / 9 AA	66
Phosphosite 13:	CELSR2	Q9HCU4	Y464	DVVSPLDYETTKEYT	71 / 7 AA	317
Phosphosite 14:	ANO5	Q75V66	Y410	QRQARLEYEWDLVDF	75 / 8 AA	107
Phosphosite 15:	CASC4	Q6P4E1	Y160	YLVKRLEYESFQCGQ	83 / 6 AA	49
Phosphosite 16:	ZNF280D	Q6N043	Y929	TPSEVLEYEATEILQ	75 / 8 AA	109
Phosphosite 17:	SPATA6	Q9NWH7	S144	NAPRLEFSTTSVITE	71 / 7 AA	56
Phosphosite 18:	KIAA2012	Q0VF49	Y502	AEEERLEYQRRKQEA	83 / 6 AA	65
Phosphosite 19:	PCYT2	Q99447	Y356	IITNRLEYEARNQKK	83 / 6 AA	44
Phosphosite 20:	FHOD3	Q2V2M9	Y1056	LWAFKMDYETTEKEV	57 / 7 AA	159