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:	C4orf21
Human P-Site:	T418
P-Site Sequence:	ESSSLQVTCSSAEND
UniProt:	Q86YA3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf21	Q86YA3	T418	ESSSLQVTCSSAEND	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S420	SSLQVTCSSAENDGI	100 / 7 AA	119
Phosphosite 2:	QARS	P47897	T664	CVESLEVTCRRADAG	66 / 9 AA	88
Phosphosite 3:	WWP1	Q9H0M0	T23	GRLQLQVTVSSAKLK	87 / 8 AA	105
Phosphosite 4:	LRRC3B	Q96PB8	T49	SSGGLNVTCSNANLK	66 / 9 AA	29
Phosphosite 5:	SLC22A25	Q6T423	T450	GAASLGITCSTAQEN	66 / 9 AA	61
Phosphosite 6:	TMEM104	Q8NE00	T175	PFSLMQVTCSATGND	62 / 8 AA	55
Phosphosite 7:	HSPA14	Q0VDF9	T491	RDGSLHVTCTDQETG	71 / 7 AA	55
Phosphosite 8:	TNRC6A	Q8NDV7	T426	TWGSLQETCESEVSG	66 / 9 AA	210
Phosphosite 9:	SP100	P23497	T467	NGEELQETCSSSLRR	75 / 8 AA	100
Phosphosite 10:	FAM102A	Q5T9C2	T174	QDSSLQLTCKGGGTS	55 / 9 AA	42
Phosphosite 11:	TRIM9	Q9C026	T559	SNDNLTVTCSSYDDR	75 / 8 AA	79
Phosphosite 12:	ANKFN1	Q8N957	T55	STGQLPTTCSSAASN	75 / 8 AA	88
Phosphosite 13:	LTF	P02788	T389	GLSEGSVTCSSASTT	100 / 6 AA	78
Phosphosite 14:	CEBPZ	Q03701	T594	VKRLLQVTCQQMPPF	100 / 5 AA	121
Phosphosite 15:	GIF	P27352	S289	DVPQVTCSPDHEVQP	71 / 7 AA	45
Phosphosite 16:	LTF	P02788	S391	SEGSVTCSSASTTED	100 / 6 AA	78
Phosphosite 17:	GIF	P27352	T287	YLDVPQVTCSPDHEV	83 / 6 AA	45
Phosphosite 18:	TMEM104	Q8NE00	S177	SLMQVTCSATGNDSC	71 / 7 AA	55
Phosphosite 19:	MCM3AP	O60318	S199	FSFPQVTSSSATTSN	85 / 7 AA	218
Phosphosite 20:	PTGER4	P35408	T475	KGSSLQVTFPSETLN	66 / 9 AA	53