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:	S643
P-Site Sequence:	EEYSDTLSNFESFKW
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	S643	EEYSDTLSNFESFKW	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	T641	EIEEYSDTLSNFESF	100 / 7 AA	119
Phosphosite 2:	UTP20	O75691	S1418	CTVFETLSDFESGLK	75 / 8 AA	318
Phosphosite 3:	PRUNE2	Q8WUY3	S2263	SSKSDTRSSFESPAQ	77 / 9 AA	34
Phosphosite 4:	IARS	P41252	S190	TACNTPLSNFESHQN	100 / 6 AA	144
Phosphosite 5:	ESPN	B1AK53	Y380	PTSTLSNYDSCSSSH	71 / 7 AA	92
Phosphosite 6:	DNM3	Q9UQ16	T292	LTNHIRDTLPNFRNK	71 / 7 AA	98
Phosphosite 7:	ESPN	B1AK53	S378	SSPTSTLSNYDSCSS	71 / 7 AA	92
Phosphosite 8:	NEDD4L	Q96PU5	S475	RAVKDTLSNPQSPQP	75 / 8 AA	112
Phosphosite 9:	CRELD2	Q6UXH1	S66	AWEEKTLSKYESSEI	71 / 7 AA	38
Phosphosite 10:	PRUNE2	Q8WUY3	S2264	SKSDTRSSFESPAQD	75 / 8 AA	34
Phosphosite 11:	NCOA7	Q8NI08	S399	KEPSDTSSAFESTAK	77 / 9 AA	106
Phosphosite 12:	CRELD2	Q6UXH1	Y68	EEKTLSKYESSEIRL	71 / 7 AA	38
Phosphosite 13:	Fer	P16591	S419	MERKERLSKFESIRH	62 / 8 AA	95
Phosphosite 14:	CYP7A1	P22680	S268	MFLNDTLSTFDDLEK	62 / 8 AA	58
Phosphosite 15:	CYP7A1	P22680	T269	FLNDTLSTFDDLEKA	71 / 7 AA	58
Phosphosite 16:	LAX1	Q8IWV1	S256	AEDSDSLSNGEGSSQ	66 / 9 AA	44
Phosphosite 17:	MKL2	Q9ULH7	S550	SPTSSTLSNLELDAA	75 / 8 AA	118
Phosphosite 18:	PSMD2	Q13200	S711	LNILDTLSKFSHDAD	83 / 6 AA	100
Phosphosite 19:	CRAT	P43155	T189	VPGPKQDTVSNFSKT	83 / 6 AA	71
Phosphosite 20:	RBM12B	Q8IXT5	S105	SGTSGVDSLSNFIES	83 / 6 AA	118