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:	CDK12
Human P-Site:	S268
P-Site Sequence:	SYKKSPGSTSRRQSV
UniProt:	Q9NYV4
Intern. Prot. ID:	IPI00021175

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CDK12	Q9NYV4	S268	SYKKSPGSTSRRQSV	100 / 9 AA	164
Phosphosite 1:	CDK12	Q9NYV4	T269	YKKSPGSTSRRQSVS	100 / 8 AA	164
Phosphosite 2:	BSN	Q9UPA5	S77	GPGPGSTSRRLDPKE	100 / 7 AA	416
Phosphosite 3:	CDK12	Q9NYV4	S270	KKSPGSTSRRQSVSP	100 / 7 AA	164
Phosphosite 4:	BSN	Q9UPA5	T76	PGPGPGSTSRRLDPK	100 / 7 AA	416
Phosphosite 5:	BSN	Q9UPA5	S75	GPGPGPGSTSRRLDP	100 / 7 AA	416
Phosphosite 6:	ACOX2	Q99424	S464	QTQMSPGSTPQRSLS	66 / 9 AA	77
Phosphosite 7:	GALNAC4S6ST	Q7LFX5	S515	LMTKSPASNARRPED	66 / 9 AA	65
Phosphosite 8:	ADAM23	O75077	S6	__MKPPGSSSRQPPL	66 / 9 AA	92
Phosphosite 9:	ANKRD53	Q8N9V6	T7	_MASAGSTARRAGSG	75 / 8 AA	60
Phosphosite 10:	MED1	Q15648	S1045	GGSKSPGSAGRSQTP	75 / 8 AA	168
Phosphosite 11:	CDC25A	P30304	T288	EESPPGSTKRRKSMS	75 / 8 AA	59
Phosphosite 12:	ACOX2	Q99424	T465	TQMSPGSTPQRSLSP	75 / 8 AA	77
Phosphosite 13:	ZNF280A	P59817	S72	RVTPGSKSRRKKGHF	85 / 7 AA	61
Phosphosite 14:	ZNF280A	P59817	S70	LNRVTPGSKSRRKKG	75 / 8 AA	61
Phosphosite 15:	GTSE1	Q9NYZ3	S303	TLLKAPGSTSNLARK	85 / 7 AA	77
Phosphosite 16:	EXPH5	Q8NEV8	S1107	TNVKSSGSTSVRKGP	77 / 9 AA	223
Phosphosite 17:	Dicer1	Q9UPY3	T743	VPGRPGSTKRRQCYP	85 / 7 AA	219
Phosphosite 18:	Cbl-b	Q13191	S841	EHSKPPGSSSRPSSG	75 / 8 AA	109
Phosphosite 19:	IGSF1	Q8N6C5	S1323	TPANSPSSTSQRISV	66 / 9 AA	149
Phosphosite 20:	ANKRD56	A6NEL2	S151	ACNGLPGSDSRRAPG	85 / 7 AA	86