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:	C3orf21
Human P-Site:	T47
P-Site Sequence:	YLGSGRETFSSATKR
UniProt:	Q8NBI6
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C3orf21	Q8NBI6	T47	YLGSGRETFSSATKR	100 / 9 AA	44
Phosphosite 1:	IREB2	P48200	T909	LGLSGRETFSLTFPE	100 / 7 AA	105
Phosphosite 2:	ATRX	P46100	T887	ERKQERETFSSAEGT	100 / 7 AA	283
Phosphosite 3:	ATRX	P46100	S889	KQERETFSSAEGTVD	100 / 7 AA	283
Phosphosite 4:	BTN1A1	Q13410	T352	PCVLGRETFTSGRHY	75 / 8 AA	59
Phosphosite 5:	ONECUT1	Q9UBC0	T346	KLKSGRETFRRMWKW	100 / 6 AA	51
Phosphosite 6:	ONECUT3	O60422	T375	KLKSGRETFRRMWKW	100 / 6 AA	50
Phosphosite 7:	TAS1R3	Q7RTX0	T179	ELLSARETFPSFFRT	75 / 8 AA	93
Phosphosite 8:	SGK223	Q86YV5	T710	KDRSGIETFSPPPPP	66 / 9 AA	150
Phosphosite 9:	CCDC141	Q6ZP82	T707	ACNDKRETFSSHFER	100 / 6 AA	101
Phosphosite 10:	HOMER2	Q9NSB8	T135	SQESGRETPSSTQAS	77 / 9 AA	41
Phosphosite 11:	CCDC141	Q6ZP82	S709	NDKRETFSSHFERPY	100 / 6 AA	101
Phosphosite 12:	AlphaK1	Q96L96	T265	HPSSGRSTFCSIIAQ	75 / 8 AA	201
Phosphosite 13:	MAPKBP1	O60336	T1460	IAQLLRDTFSSVRQE	71 / 7 AA	164
Phosphosite 14:	ACOT7L	Q6ZUV0	T219	KTISGRMTFTSNKSV	75 / 8 AA	28
Phosphosite 15:	AlphaK1	Q96L96	S264	SHPSSGRSTFCSIIA	75 / 8 AA	201
Phosphosite 16:	KIAA1632	Q9HCE0	T815	VTLSTRETFSKVGRE	85 / 7 AA	292
Phosphosite 17:	ZNF189	O75820	T100	QDPMGRETFELVGRL	100 / 5 AA	73
Phosphosite 18:	MAPKBP1	O60336	S1462	QLLRDTFSSVRQELE	71 / 7 AA	164
Phosphosite 19:	PSG8	Q9UQ74	T100	PAYSGRETIYSNASL	75 / 8 AA	48
Phosphosite 20:	IRAK1BP1	Q5VVH5	T33	NLASGRETLPGLRHP	62 / 8 AA	29