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:	S256
P-Site Sequence:	SPSRSHTSSNYDSYK
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	S256	SPSRSHTSSNYDSYK	100 / 9 AA	164
Phosphosite 1:	CDK12	Q9NYV4	T255	LSPSRSHTSSNYDSY	100 / 8 AA	164
Phosphosite 2:	CDK12	Q9NYV4	S257	PSRSHTSSNYDSYKK	100 / 8 AA	164
Phosphosite 3:	TAF7L	Q5H9L4	S315	SHKQGHTSSEYDMLR	66 / 9 AA	53
Phosphosite 4:	TAF7L	Q5H9L4	S316	HKQGHTSSEYDMLRE	75 / 8 AA	53
Phosphosite 5:	FCHSD2	O94868	T549	ALDSRSHTSSNSTEA	100 / 7 AA	84
Phosphosite 6:	GPR162	Q16538	S80	VQLRRQASSDYDWNE	55 / 9 AA	64
Phosphosite 7:	OR8D2	Q9GZM6	T173	LSFCRSHTVSHYFCD	75 / 8 AA	35
Phosphosite 8:	TOP2B	Q02880	S170	FGQLLTSSNYDDDEK	100 / 6 AA	183
Phosphosite 9:	TOP2A	P11388	S149	FGQLLTSSNYDDDEK	100 / 6 AA	174
Phosphosite 10:	FBXO44	Q9H4M3	T212	KWREVSHTFSNYPPG	85 / 7 AA	30
Phosphosite 11:	FBXO44	Q9H4M3	S214	REVSHTFSNYPPGVR	85 / 7 AA	30
Phosphosite 12:	CDK12	Q9NYV4	Y259	RSHTSSNYDSYKKSP	100 / 6 AA	164
Phosphosite 13:	ZNF281	Q9Y2X9	S529	GKQGQISSNYDDAMQ	62 / 8 AA	97
Phosphosite 14:	Cezanne	Q6GQQ9	S115	SLARSHVSSNGGGGG	85 / 7 AA	93
Phosphosite 15:	HERC1	Q15751	S1502	ESRLVHTSPNYRLIK	83 / 6 AA	532
Phosphosite 16:	SLC4A3	P48751	T566	LGPSHTSTDYHELGR	71 / 7 AA	136
Phosphosite 17:	FCHSD2	O94868	S547	LAALDSRSHTSSNST	100 / 6 AA	84
Phosphosite 18:	CDK12	Q9NYV4	S253	YDLSPSRSHTSSNYD	100 / 6 AA	164
Phosphosite 19:	KIAA1377	Q9P2H0	S551	SSLSNVTSNYDFVGQ	62 / 8 AA	126
Phosphosite 20:	RLBP1L1	Q8IUQ0	S313	MHVKHTSSNLERECS	71 / 7 AA	41