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:	GPR21
Human P-Site:	S276
P-Site Sequence:	IIYFLLESSTGHSNR
UniProt:	Q99679
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	GPR21	Q99679	S276	IIYFLLESSTGHSNR	100 / 9 AA	40
Phosphosite 1:	GPR21	Q99679	S277	IYFLLESSTGHSNRF	100 / 8 AA	40
Phosphosite 2:	EML6	Q6ZMW3	S145	RKGKLLASATGHSDR	75 / 8 AA	217
Phosphosite 3:	LRRFIP1	Q32MZ4	S467	VPQELETSTGHSLEK	85 / 7 AA	89
Phosphosite 4:	NCOA7	Q8NI08	S354	PIVPLEKSTGHTPTK	85 / 7 AA	106
Phosphosite 5:	SLC38A2	Q96QD8	S55	NQNFLLESNLGKKKY	75 / 8 AA	56
Phosphosite 6:	MACF1	Q9UPN3	S4335	AGNELLESSAGDDAS	75 / 8 AA	620
Phosphosite 7:	MACF1	Q96PK2	S4837	AGNELLESSAGDDAS	75 / 8 AA	670
Phosphosite 8:	BRIP1	Q9BX63	S46	KQHCLLESPTGSGKS	85 / 7 AA	141
Phosphosite 9:	MORC3	Q14149	S758	DAVFLLESINGKSES	75 / 8 AA	107
Phosphosite 10:	RIMS1	Q86UR5	S1684	SQSSLESSTGPPCIR	85 / 7 AA	189
Phosphosite 11:	IGFN1	Q86VF2	S952	CPKFLVDSSTKDLLT	71 / 7 AA	138
Phosphosite 12:	SETD3	Q86TU7	S512	SNLGLLESSVGDSRL	75 / 8 AA	67
Phosphosite 13:	SETD3	Q86TU7	S513	NLGLLESSVGDSRLP	75 / 8 AA	67
Phosphosite 14:	RIMS2	Q9UQ26	T1404	QSSLESSTGPSYSRS	85 / 7 AA	160
Phosphosite 15:	ANKRD12	Q6UB98	S1237	DSDFMLESSESQMSF	55 / 9 AA	236
Phosphosite 16:	NRAP	Q86VF7	S379	EYKKDLESSRGHSIN	85 / 7 AA	197
Phosphosite 17:	RIMS2	Q9UQ26	S1403	SQSSLESSTGPSYSR	85 / 7 AA	160
Phosphosite 18:	RIMS2	Q9UQ26	S1402	ASQSSLESSTGPSYS	85 / 7 AA	160
Phosphosite 19:	RIMS1	Q86UR5	S1683	ASQSSLESSTGPPCI	85 / 7 AA	189
Phosphosite 20:	TEX15	Q9BXT5	S735	GEMEVLESTTGRENS	62 / 8 AA	315