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:	S521
P-Site Sequence:	TPKETETSEKETPPP
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	S521	TPKETETSEKETPPP	100 / 9 AA	164
Phosphosite 1:	KTN1	Q86UP2	S1319	VSPETESSEKETMSV	88 / 9 AA	156
Phosphosite 2:	CDK12	Q9NYV4	T520	VTPKETETSEKETPP	100 / 8 AA	164
Phosphosite 3:	FKBPL	Q9UIM3	S204	DSWELETSEKEALAR	77 / 9 AA	38
Phosphosite 4:	YAF2	Q8IY57	S87	DKVEKEKSEKETTSK	77 / 9 AA	20
Phosphosite 5:	CNTLN	Q9NXG0	T738	QQQEDTETREKELEQ	75 / 8 AA	162
Phosphosite 6:	FAM135A	Q9P2D6	S1070	LSPQKETSEKEISNL	66 / 9 AA	170
Phosphosite 7:	CR2	P20023	S1011	RNYYTDTSQKEAFHL	62 / 8 AA	113
Phosphosite 8:	C17orf27	Q63HN8	S1585	EAMETESSEKVGKET	85 / 7 AA	374
Phosphosite 9:	TRDN	Q13061	S618	GKKKTEISEKESKEK	75 / 8 AA	82
Phosphosite 10:	MLLT3	P42568	S345	VKIESETSEKKKSTL	85 / 7 AA	63
Phosphosite 11:	HERC5	Q9UII4	S357	LKLESHTSEKELIMI	75 / 8 AA	117
Phosphosite 12:	LOC375337	Q8N9V7	S965	GEVANETSENETLGD	85 / 7 AA	191
Phosphosite 13:	NEFH	P12036	S450	KIKVVEKSEKETVIV	75 / 8 AA	112
Phosphosite 14:	MTMR14	Q8NCE2	S97	VFLEYESSEKEKDTF	75 / 8 AA	72
Phosphosite 15:	ACBD3	Q9H3P7	S345	AKTHTDSSEKELEPE	71 / 7 AA	61
Phosphosite 16:	SACS	Q9NZJ4	S913	FLASLTDSSEKEKRI	71 / 7 AA	521
Phosphosite 17:	CCDC9	Q9Y3X0	S390	QPTSPETSPKETPMQ	85 / 7 AA	60
Phosphosite 18:	CYTSA	Q69YQ0	S226	HSEGDEKSEKETIMA	85 / 7 AA	125
Phosphosite 19:	SETMAR	Q53H47	S543	NPGETITSEKYAQEI	85 / 7 AA	77
Phosphosite 20:	SACS	Q9NZJ4	S914	LASLTDSSEKEKRII	71 / 7 AA	521