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:	S323
P-Site Sequence:	SGSYSGRSPSPYGRR
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	S323	SGSYSGRSPSPYGRR	100 / 9 AA	164
Phosphosite 1:	CDK12	Q9NYV4	S325	SYSGRSPSPYGRRRS	100 / 7 AA	164
Phosphosite 2:	RBMXL3	Q8N7X1	S920	YEEYQGRSPNAYGGG	66 / 9 AA	114
Phosphosite 3:	PTPN21	Q16825	S520	SLSYSFHSPSPYPYP	77 / 9 AA	133
Phosphosite 4:	TRA2A	Q13595	S260	DYRYRRRSPSPYYSR	77 / 9 AA	33
Phosphosite 5:	TRA2B	P62995	S264	DQIYRRRSPSPYYSR	77 / 9 AA	34
Phosphosite 6:	CDK12	Q9NYV4	S291	AYQSSTRSPSPYSRR	87 / 8 AA	164
Phosphosite 7:	TCF20	Q9UGU0	S1007	GMRGRSPSQYHDFAE	85 / 7 AA	212
Phosphosite 8:	PIP5K	Q9Y2I7	S88	SRTQSVRSPTPYKKQ	75 / 8 AA	237
Phosphosite 9:	TCF20	Q9UGU0	S1005	REGMRGRSPSQYHDF	85 / 7 AA	212
Phosphosite 10:	MAST1	Q9Y2H9	S169	LSPGRSPSSYDNEIV	85 / 7 AA	171
Phosphosite 11:	SRRM2	Q9UQ35	S295	TTALAGRSPSPASGR	75 / 8 AA	300
Phosphosite 12:	HSPG2	P98160	S4319	EELVSGRSPGPNVAV	75 / 8 AA	469
Phosphosite 13:	CDK12	Q9NYV4	S320	YERSGSYSGRSPSPY	100 / 6 AA	164
Phosphosite 14:	BRPF3	Q9ULD4	S17	QNAEGRRSPSPYSLK	100 / 6 AA	136
Phosphosite 15:	KIAA0802	Q9Y4B5	S1805	NSRGRSPSPIGVGSE	85 / 7 AA	209
Phosphosite 16:	FAM91A1	Q658Y4	S826	LSEWSGRSPSSLLIA	85 / 7 AA	94
Phosphosite 17:	BRPF3	Q9ULD4	S19	AEGRRSPSPYSLKCS	100 / 6 AA	136
Phosphosite 18:	CDK12	Q9NYV4	S293	QSSTRSPSPYSRRQR	100 / 6 AA	164
Phosphosite 19:	IFI16	Q16666	S166	MSTAMGRSPSPKTSL	100 / 6 AA	88
Phosphosite 20:	CDK13	Q14004	S358	YSRRLPRSPSPYSRR	100 / 6 AA	165