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:	S376
P-Site Sequence:	HSKKKRSSSRSRHSS
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	S376	HSKKKRSSSRSRHSS	100 / 9 AA	164
Phosphosite 1:	CDK12	Q9NYV4	S377	SKKKRSSSRSRHSSI	100 / 8 AA	164
Phosphosite 2:	BCLAF1	Q9NYF8	S35	HSRKKRYSSRSRSRT	88 / 9 AA	106
Phosphosite 3:	CDK12	Q9NYV4	S375	SHSKKKRSSSRSRHS	100 / 8 AA	164
Phosphosite 4:	SFRS6	Q13247	T323	SPPPKRATSRSRSRS	75 / 8 AA	40
Phosphosite 5:	SFRS5	Q13243	S197	SRSRTRSSSRSRSRS	77 / 9 AA	31
Phosphosite 6:	BCLAF1	Q9NYF8	Y34	SHSRKKRYSSRSRSR	87 / 8 AA	106
Phosphosite 7:	BCLAF1	Q9NYF8	S36	SRKKRYSSRSRSRTY	87 / 8 AA	106
Phosphosite 8:	SFRS6	Q13247	S324	PPPKRATSRSRSRSR	75 / 8 AA	40
Phosphosite 9:	SFRS5	Q13243	S198	RSRTRSSSRSRSRSR	87 / 8 AA	31
Phosphosite 10:	PRPF4B	Q13523	S184	KITTKKRSKSRSKER	87 / 8 AA	117
Phosphosite 11:	SNRNP70	P08621	S292	DRDRKRRSSRSRERA	77 / 9 AA	52
Phosphosite 12:	ARGLU1	Q9NWB6	S25	SKHNKKRSRSRSRSR	87 / 8 AA	33
Phosphosite 13:	DDX46	Q7L014	S14	HYRKRSASRGRSGSR	75 / 8 AA	117
Phosphosite 14:	ZNF265	O95218	S259	RGSKSRSSSRSHRGS	77 / 9 AA	37
Phosphosite 15:	RBM16	Q9UPN6	S433	KHRKRSRSRSRERKR	87 / 8 AA	141
Phosphosite 16:	U2AF2	P26368	S30	RHRKRSHSRSRSRDR	87 / 8 AA	54
Phosphosite 17:	SNRNP70	P08621	S293	RDRKRRSSRSRERAR	87 / 8 AA	52
Phosphosite 18:	CROP	O95232	S295	ERRKRSRSRSRHSSR	87 / 8 AA	51
Phosphosite 19:	RSRC1	Q96IZ7	S85	SRRKRSRSRSRGRGK	87 / 8 AA	39
Phosphosite 20:	THRAP3	Q9Y2W1	S46	RSRKRRLSSRSRSRS	77 / 9 AA	109