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:	S374
P-Site Sequence:	SPSYSRHSSYERGGD
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	S374	SPSYSRHSSYERGGD	100 / 9 AA	165
Phosphosite 1:	CDK13	Q14004	S375	PSYSRHSSYERGGDV	100 / 8 AA	165
Phosphosite 2:	CDK13	Q14004	Y376	SYSRHSSYERGGDVS	100 / 7 AA	165
Phosphosite 3:	RNASEN	Q9NRR4	S280	RTPSRHRSYERSRER	87 / 8 AA	159
Phosphosite 4:	C21orf74	Q8TCZ7	S46	ACFSFHSSYERIGPD	87 / 8 AA	6
Phosphosite 5:	C21orf74	Q8TCZ7	Y47	CFSFHSSYERIGPDA	100 / 6 AA	6
Phosphosite 6:	PARM1	Q6UWI2	Y287	LKIRHSSYGRLLDDH	85 / 7 AA	32
Phosphosite 7:	PARM1	Q6UWI2	S286	YLKIRHSSYGRLLDD	85 / 7 AA	32
Phosphosite 8:	PARM1	Q6UWI2	S285	AYLKIRHSSYGRLLD	85 / 7 AA	32
Phosphosite 9:	RNASEN	Q9NRR4	Y281	TPSRHRSYERSRERE	85 / 7 AA	159
Phosphosite 10:	CHADL	Q6NUI6	S410	VPESRHSSCEGCGLQ	85 / 7 AA	82
Phosphosite 11:	PROC	P04070	S54	LEELRHSSLERECIE	85 / 7 AA	52
Phosphosite 12:	PROC	P04070	S53	FLEELRHSSLERECI	85 / 7 AA	52
Phosphosite 13:	MUC13	Q9H3R2	S505	QNPYSRHSSMPRPDY	77 / 9 AA	55
Phosphosite 14:	CHADL	Q6NUI6	S409	CVPESRHSSCEGCGL	85 / 7 AA	82
Phosphosite 15:	DEPDC5	O75140	S1297	ASYASRHSSFSRSFG	75 / 8 AA	178
Phosphosite 16:	CWH43	Q9H720	Y415	LGLRHKAYERKLGKV	71 / 7 AA	79
Phosphosite 17:	DEPDC5	O75140	S1298	SYASRHSSFSRSFGG	75 / 8 AA	178
Phosphosite 18:	CCDC66	A2RUB6	S820	LHLPLKNSSYERENL	71 / 7 AA	109
Phosphosite 19:	THOC2	Q8NI27	Y899	LAVPHTSYEREVNKL	71 / 7 AA	183
Phosphosite 20:	THOC2	Q8NI27	S898	DLAVPHTSYEREVNK	71 / 7 AA	183