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:	C4orf43
Human P-Site:	S21
P-Site Sequence:	KKVIHPYSRKAAQIT
UniProt:	Q96EY4
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf43	Q96EY4	S21	KKVIHPYSRKAAQIT	100 / 9 AA	24
Phosphosite 1:	C4orf43	Q96EY4	Y20	EKKVIHPYSRKAAQI	100 / 8 AA	24
Phosphosite 2:	WHAMM	Q8TF30	S589	AVSVIHPSSRKTRGV	75 / 8 AA	91
Phosphosite 3:	STEAP2	Q8NFT2	Y239	VRDVIHPYARNQQSD	71 / 7 AA	56
Phosphosite 4:	YME1L1	Q96TA2	Y455	IESPMHPYSRQTINQ	62 / 8 AA	86
Phosphosite 5:	WHAMM	Q8TF30	S590	VSVIHPSSRKTRGVP	75 / 8 AA	91
Phosphosite 6:	YME1L1	Q96TA2	S456	ESPMHPYSRQTINQL	62 / 8 AA	86
Phosphosite 7:	HERV-F(c)1_Xq21.33 provirus ancestral Env polyprotein	P60507	S564	QMLLHPYSRLPTSED	83 / 6 AA	65
Phosphosite 8:	CTXN1	P60606	S58	RILLDPYSRMPASSW	55 / 9 AA	9
Phosphosite 9:	RC3H2	Q9HBD1	Y395	LVDFIQNYSRKGHET	62 / 8 AA	132
Phosphosite 10:	VAC14	Q08AM6	S68	ALSQHPHSRKGGLIG	62 / 8 AA	88
Phosphosite 11:	DAPP1	Q9UN19	Y129	LMVLKHPYPRKVEEP	71 / 7 AA	32
Phosphosite 12:	STAM	Q92783	S535	PQPQQPYSQKALL__	71 / 7 AA	59
Phosphosite 13:	NXF3	Q9H4D5	Y74	TPYTISPYNRKGSFR	62 / 8 AA	60
Phosphosite 14:	USF1	P22415	S186	APRTHPYSPKSEAPR	55 / 9 AA	34
Phosphosite 15:	ZNF438	Q7Z4V0	S298	KLPIPPYSRMKTMEV	71 / 7 AA	92
Phosphosite 16:	SEC16A	O15027	S2005	GAPVNMYSRRAAGTR	55 / 9 AA	234
Phosphosite 17:	ZNF438	Q7Z4V0	Y297	GKLPIPPYSRMKTME	71 / 7 AA	92
Phosphosite 18:	AGBL1	Q96MI9	Y108	LFKVITPYTRKRTQA	71 / 7 AA	120
Phosphosite 19:	ZNF8	P17098	S520	VQHQHPNSRKSSAGG	62 / 8 AA	65
Phosphosite 20:	EVX2	Q03828	Y329	FRALSHPYSRPELLC	100 / 5 AA	48