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:	CDK8
Human P-Site:	Y447
P-Site Sequence:	QPQSSMGYSATSQQP
UniProt:	P49336
Intern. Prot. ID:	IPI00026791

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CDK8	P49336	Y447	QPQSSMGYSATSQQP	100 / 9 AA	53
Phosphosite 1:	CDK8	P49336	S448	PQSSMGYSATSQQPP	100 / 8 AA	53
Phosphosite 2:	ADAMTS5	Q9UNA0	Y823	DFLHGMGYSATKEIL	85 / 7 AA	102
Phosphosite 3:	GAA	P10253	Y148	LSSSEMGYTATLTRT	75 / 8 AA	105
Phosphosite 4:	CDK8	P49336	S444	STSQPQSSMGYSATS	100 / 6 AA	53
Phosphosite 5:	PMM2	O15305	S230	DPRTMGYSVTAPEDT	62 / 8 AA	28
Phosphosite 6:	GAA	P10253	T149	SSSEMGYTATLTRTT	83 / 6 AA	105
Phosphosite 7:	BTN3A3	O00478	Y295	REMKEMGYAATEQEI	83 / 6 AA	65
Phosphosite 8:	KCMF1	Q9P0J7	Y88	PYCGKMGYTETSLQE	71 / 7 AA	42
Phosphosite 9:	CDK8	P49336	T450	SSMGYSATSQQPPQY	100 / 6 AA	53
Phosphosite 10:	COL4A3BP	Q9Y5P4	S144	VSGASGYSATSTSSF	100 / 6 AA	71
Phosphosite 11:	COL4A3BP	Q9Y5P4	Y143	LVSGASGYSATSTSS	100 / 6 AA	71
Phosphosite 12:	KIAA0329	O15040	Y806	FAESWMGYSGPGYGI	71 / 7 AA	154
Phosphosite 13:	Slc9a10	Q4G0N8	Y964	LTNEPMKYSATCKTV	62 / 8 AA	135
Phosphosite 14:	PI4KA	P42356	Y633	VKASSVVYSATKDYK	75 / 8 AA	231
Phosphosite 15:	POLR2A	P24928	S1948	SPTSPGYSPTSPTYS	75 / 8 AA	217
Phosphosite 16:	CDK8	P49336	S443	PSTSQPQSSMGYSAT	100 / 5 AA	53
Phosphosite 17:	POLR2A	P24928	Y1947	YSPTSPGYSPTSPTY	66 / 9 AA	217
Phosphosite 18:	NCL	P19338	S494	TLVLSNLSYSATEET	62 / 8 AA	77
Phosphosite 19:	HYDIN	Q4G0P3	T1012	ILEGYSATPRIVKEK	83 / 6 AA	576
Phosphosite 20:	MSH4	O15457	Y141	SWTPQVGYSASSSSA	71 / 7 AA	105