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:	S550
P-Site Sequence:	TSTLRSISNNRSVVS
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	S550	TSTLRSISNNRSVVS	100 / 9 AA	72
Phosphosite 1:	Myc	P01106	S337	VRVLRQISNNRKCTS	87 / 8 AA	49
Phosphosite 2:	XKR4	Q5GH76	S548	VATSTLRSISNNRSV	100 / 7 AA	72
Phosphosite 3:	RNF6	Q9Y252	S307	PIRLRSTSNSRSRSP	77 / 9 AA	78
Phosphosite 4:	ANK3	Q12955	S918	SASLRSFSSDRSYTL	66 / 9 AA	480
Phosphosite 5:	ANK2	Q01484	S903	SDSLRSFSSDRSHTL	66 / 9 AA	430
Phosphosite 6:	KIAA1522	Q9P206	S948	VAELRSISEQRPPQA	66 / 9 AA	107
Phosphosite 7:	WWTR1	Q9GZV5	T292	TPDMRSITNNSSDPF	66 / 9 AA	44
Phosphosite 8:	MTMR14	Q8NCE2	S644	ARGVGLRSISSNAL_	85 / 7 AA	72
Phosphosite 9:	LRRC35	Q5QJ74	S233	FPNLRSISLHKSGLQ	66 / 9 AA	48
Phosphosite 10:	WWTR1	Q9GZV5	S290	TMTPDMRSITNNSSD	71 / 7 AA	44
Phosphosite 11:	GNL1	P36915	S34	QDGLRSSSNSRSGSR	77 / 9 AA	69
Phosphosite 12:	RNF6	Q9Y252	T306	EPIRLRSTSNSRSRS	75 / 8 AA	78
Phosphosite 13:	PAXIP1	Q6ZW49	T308	VRTLRNITNNADIQQ	71 / 7 AA	118
Phosphosite 14:	SFRS6	Q13247	S220	RSRSRSISKSRSRSR	75 / 8 AA	40
Phosphosite 15:	REEP4	Q9H6H4	S160	MQDLRSISDAPAPAY	55 / 9 AA	29
Phosphosite 16:	CSTF1	Q05048	S224	AEMLRSISFHPSGDF	66 / 9 AA	48
Phosphosite 17:	REEP4	Q9H6H4	S158	FSMQDLRSISDAPAP	83 / 6 AA	29
Phosphosite 18:	PSD2	Q9BQI7	S228	PLRRSISSSRSENVL	75 / 8 AA	85
Phosphosite 19:	OTOF	Q9HC10	S521	FIDLRKISNDGDKGF	71 / 7 AA	227
Phosphosite 20:	HMCN1	Q96RW7	S2153	KKPGLSISENRSVLK	85 / 7 AA	613