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:	CDK13
Human P-Site:	S276
P-Site Sequence:	SSRKDRDSKAHRSRT
UniProt:	Q14004
Intern. Prot. ID:	IPI00456970

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CDK13	Q14004	S276	SSRKDRDSKAHRSRT	100 / 9 AA	165
Phosphosite 1:	HNRNPF	P52597	S77	ALKKDRESMGHRYIE	66 / 9 AA	46
Phosphosite 2:	HNRNPH2	P55795	T77	ALKKDRETMGHRYVE	55 / 9 AA	49
Phosphosite 3:	HNRNPH1	P31943	T77	ALKKDRETMGHRYVE	55 / 9 AA	49
Phosphosite 4:	SLC4A1AP	Q9BWU0	S48	WVSKERISKLHRLRM	66 / 9 AA	89
Phosphosite 5:	RNF6	Q9Y252	S416	GENRDRDSIANRTRS	66 / 9 AA	78
Phosphosite 6:	PPIG	Q13427	S475	SKSKERDSKHNRNEE	66 / 9 AA	89
Phosphosite 7:	OTUD6A	Q7L8S5	S92	ENRPPRSSKAHRKRE	85 / 7 AA	33
Phosphosite 8:	CCDC55	Q9H0G5	S343	DYRKERDSHRHREAS	66 / 9 AA	66
Phosphosite 9:	CEP170L	Q96L14	T22	EDYIRDWTAHREEIA	71 / 7 AA	33
Phosphosite 10:	DDX23	Q9BUQ8	S124	KSRKDRDSKKDEEDE	100 / 6 AA	96
Phosphosite 11:	FLG	P20930	S303	RVSQDRDSEGHSEDS	62 / 8 AA	435
Phosphosite 12:	FLG	P20930	S1600	SVSQDRDSEGHSEDS	62 / 8 AA	435
Phosphosite 13:	SYDE2	Q5VT97	S795	REAFERDSKAVGLCE	83 / 6 AA	125
Phosphosite 14:	WDR87	Q6ZQQ6	S1108	KKTKERDSKQMSTEP	83 / 6 AA	333
Phosphosite 15:	ZNF579	Q8NAF0	S550	MEEEEVDSKAHLRGL	71 / 7 AA	60
Phosphosite 16:	RLTPR	Q6F5E8	S1172	RPRYTRDSKAYSMIL	83 / 6 AA	159
Phosphosite 17:	C14orf143	Q9BUY7	S143	FREVDRDSDGHVSFR	71 / 7 AA	19
Phosphosite 18:	ZIM2	Q9NZV7	S90	DREDDRDSRAYESRS	71 / 7 AA	61
Phosphosite 19:	PEG3	Q9GZU2	S215	DREDDRDSRAYESRS	71 / 7 AA	181
Phosphosite 20:	ARAP2	Q8WZ64	S1665	RKTEDRNSKATLDSD	83 / 6 AA	193