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:	S18
P-Site Sequence:	KDGSGGASGTLQPSS
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	S18	KDGSGGASGTLQPSS	100 / 9 AA	164
Phosphosite 1:	CDK12	Q9NYV4	T20	GSGGASGTLQPSSGG	100 / 7 AA	164
Phosphosite 2:	KLC4	Q9NSK0	S546	VEWSGDGSGTLQRSG	77 / 9 AA	69
Phosphosite 3:	ZFP36L2	P47974	S230	PAPSGGASGDLRAFG	77 / 9 AA	51
Phosphosite 4:	CCDC57	Q2TAC2	S828	HSSSSFASGTLQDMW	77 / 9 AA	103
Phosphosite 5:	HECW2	Q9P2P5	S176	EGMEGGASGNLHSRK	75 / 8 AA	176
Phosphosite 6:	PKMYT1	Q99640	S89	VSFRGEASETLQSPG	66 / 9 AA	55
Phosphosite 7:	HP1BP3	Q5SSJ5	T325	TGKGASGTFQLKKSG	85 / 7 AA	61
Phosphosite 8:	CCDC57	Q2TAC2	T830	SSSFASGTLQDMWRL	100 / 6 AA	103
Phosphosite 9:	ARHGEF17	Q96PE2	S1648	DESSPSPSGTLQSQA	66 / 9 AA	222
Phosphosite 10:	PPP1R13L	Q8WUF5	S339	SLGSAGPSGTLPRSW	66 / 9 AA	89
Phosphosite 11:	RBM25	P49756	S123	WKRVQGASGKLQAFG	85 / 7 AA	100
Phosphosite 12:	SAMD4	Q9UPU9	S468	ATPSAGASGGLQPHQ	77 / 9 AA	59
Phosphosite 13:	USP10	Q14694	S331	ADGTGSASGTLPVSQ	66 / 9 AA	87
Phosphosite 14:	EPB41L2	O43491	S919	DGGAGGDSGTLLTAQ	75 / 8 AA	113
Phosphosite 15:	TrpV5	Q9NQA5	S673	KQPSGAESGTLARAS	75 / 8 AA	83
Phosphosite 16:	NBEAL2	Q6ZNJ1	S1377	TAGGGGSSGTLTPAS	85 / 7 AA	303
Phosphosite 17:	DACT1	Q9NYF0	S169	YELSDGASGSLSNSS	75 / 8 AA	90
Phosphosite 18:	MAST4	O15021	T1647	RRAPAPGTLQDGLCH	83 / 6 AA	284
Phosphosite 19:	CCDC134	Q9H6E4	T23	SGMGATGTLRTSLDP	71 / 7 AA	27
Phosphosite 20:	ARHGEF17	Q96PE2	T1650	SSPSPSGTLQSQASR	71 / 7 AA	222