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:	S286
P-Site Sequence:	GHSNRFASFLTTWLA
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	S286	GHSNRFASFLTTWLA	100 / 9 AA	40
Phosphosite 1:	KRT82	Q9NSB4	S133	CLNNRFASFINKVRF	66 / 9 AA	57
Phosphosite 2:	K32	Q14532	S109	FLNDRLASYLTRVRQ	62 / 8 AA	50
Phosphosite 3:	SPEF2	Q9C093	S1742	QDSNRFASHLKIENI	66 / 9 AA	210
Phosphosite 4:	GPRC6A	Q5T6X5	S184	SDKIRFPSFLRTVPS	75 / 8 AA	105
Phosphosite 5:	NEFL	P07196	S103	DLNDRFASFIERVHE	71 / 7 AA	62
Phosphosite 6:	OCA2	Q04671	S70	PAGQEFASFLTKGRS	100 / 6 AA	93
Phosphosite 7:	K84	Q9NSB2	S178	TLNNKFASFIDKVRF	71 / 7 AA	65
Phosphosite 8:	K6IRS3	Q86Y46	S145	VLNNKFASFIDKVRF	71 / 7 AA	59
Phosphosite 9:	K77	Q7Z794	S177	VLNNKFASFIDKVFL	71 / 7 AA	62
Phosphosite 10:	KRT79	Q5XKE5	S155	TLNNKFASFIDKVRF	71 / 7 AA	58
Phosphosite 11:	KRT71	Q3SY84	S143	ALNNKFASFIDKVRF	71 / 7 AA	57
Phosphosite 12:	KRT72	Q14CN4	S138	ALNNKFASFIDKVRF	71 / 7 AA	56
Phosphosite 13:	KRT76	Q01546	S196	TLNNKFASFIDKVRF	71 / 7 AA	66
Phosphosite 14:	Cytokeratin 6E	P48668	S176	TLNNKFASFIDKVRF	71 / 7 AA	60
Phosphosite 15:	K2	P35908	S191	TLNNKFASFIDKVRF	71 / 7 AA	65
Phosphosite 16:	KRT4	P19013	S164	LLNNKFASFIDKVQF	71 / 7 AA	57
Phosphosite 17:	K5	P13647	S181	TLNNKFASFIDKVRF	71 / 7 AA	62
Phosphosite 18:	K3	P12035	S211	TLNNKFASFIDKVRF	71 / 7 AA	64
Phosphosite 19:	KRT7	P08729	S104	TLNNKFASFIDKVRF	71 / 7 AA	51
Phosphosite 20:	KRT8	P05787	S104	TLNNKFASFIDKVRF	71 / 7 AA	54