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:	C21orf121
Human P-Site:	T45
P-Site Sequence:	APPSSSWTLWVAPRC
UniProt:	Q8N0V1
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C21orf121	Q8N0V1	T45	APPSSSWTLWVAPRC	100 / 9 AA	15
Phosphosite 1:	BCAS1	O75363	T139	KDPSESWTLPVAAGP	77 / 9 AA	62
Phosphosite 2:	EIF4E3	Q8N5X7	T54	VPLHSSWTFWLDRSL	62 / 8 AA	24
Phosphosite 3:	XAB2	Q9HCS7	T396	KATGKPHTLWVAFAK	55 / 9 AA	100
Phosphosite 4:	UNC45A	Q9H3U1	T336	KDPNNSLTLWVIDQG	62 / 8 AA	103
Phosphosite 5:	smMLCK	Q15746	T501	GQVSCSWTLQVERLA	66 / 9 AA	211
Phosphosite 6:	ZNF296	Q8WUU4	T89	LGPRNPWTLWTPLTP	44 / 9 AA	51
Phosphosite 7:	BTG2	P78543	T101	QLLPSELTLWVDPYE	55 / 9 AA	17
Phosphosite 8:	BTG1	P62324	T103	RLLPSELTLWVDPYE	55 / 9 AA	192
Phosphosite 9:	LOC643677	Q8NDH2	S2428	LVAKISSSWNIWSSS	71 / 7 AA	278
Phosphosite 10:	TMEFF2	Q9UIK5	S12	ESPRQCSSWTLCEGF	83 / 6 AA	41
Phosphosite 11:	PLAC4	Q8WY50	S100	HPGYPHSSPWTLSLT	83 / 6 AA	17
Phosphosite 12:	NUDT6	P53370	T126	ESDSSTLTLWLREGP	62 / 8 AA	36
Phosphosite 13:	ZNF296	Q8WUU4	T92	RNPWTLWTPLTPNYP	66 / 6 AA	51
Phosphosite 14:	DSEL	Q8IZU8	T1010	SLSSGSWTLKLHFFQ	83 / 6 AA	139
Phosphosite 15:	MAGEB4	O15481	S191	PNDGNQSSAWTLPRN	83 / 6 AA	39
Phosphosite 16:	LRIG1	Q96JA1	S1021	SLDGKGDSSWTLARL	100 / 5 AA	119
Phosphosite 17:	LRIG1	Q96JA1	S1022	LDGKGDSSWTLARLY	100 / 5 AA	119
Phosphosite 18:	MAGEB4	O15481	T194	GNQSSAWTLPRNGLL	83 / 6 AA	39
Phosphosite 19:	PLAC4	Q8WY50	T103	YPHSSPWTLSLTLTP	55 / 9 AA	17
Phosphosite 20:	ARHGAP20	Q9P2F6	S1163	WERASASSWTLEDAT	100 / 5 AA	133