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:	KLF4
Human P-Site:	S421
P-Site Sequence:	KPKRGRRSWPRKRTA
UniProt:	O43474
Intern. Prot. ID:	IPI00012531

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	KLF4	O43474	S421	KPKRGRRSWPRKRTA	100 / 9 AA	50
Phosphosite 1:	KLF2	Q9Y5W3	S263	KPKRGRRSWPRKRTA	100 / 9 AA	37
Phosphosite 2:	KLF1	Q13351	S270	PSKRGRRSWARKRQA	88 / 9 AA	38
Phosphosite 3:	TMEM200B	Q69YZ2	S282	ARDCAHRSWPRLDRL	71 / 7 AA	33
Phosphosite 4:	Lrrc4b	Q9NT99	S18	PLPPGRMSWPHGALL	71 / 7 AA	76
Phosphosite 5:	ADAM19	Q9H013	S873	NPVPGRRSLPRPGGA	85 / 7 AA	105
Phosphosite 6:	YTHDC1	Q96MU7	S676	AVVSGRRSRPRERDR	75 / 8 AA	85
Phosphosite 7:	CNGA3	Q16281	S132	EPADRGRSAWPLAKC	71 / 7 AA	79
Phosphosite 8:	RREB1	Q92766	S1161	GRKRGMRSRPRANSG	75 / 8 AA	181
Phosphosite 9:	ERN2	Q76MJ5	S8	MASAVRGSRPWPRLG	71 / 7 AA	102
Phosphosite 10:	POPDC2	Q9HBU9	S213	ETSCSYISWPRKSLH	100 / 5 AA	40
Phosphosite 11:	SLC29A4	Q7RTT9	S335	PRPRVQRSWPTFRAL	71 / 7 AA	58
Phosphosite 12:	DENND3	A2RUS2	S349	EGRAHRRSWQQKLNC	71 / 7 AA	136
Phosphosite 13:	TREX2	Q9BQ50	S12	GSPLPRSSWPRMDDC	71 / 7 AA	31
Phosphosite 14:	KIAA0443	Q96D09	S246	GEETSVRSWPREESN	83 / 6 AA	94
Phosphosite 15:	CELA1	Q9UNI1	S29	GTEAGRNSWPSQISL	62 / 8 AA	28
Phosphosite 16:	XAGE5	Q8WWM1	Y8	MSWRGRRYRPRRCLR	66 / 9 AA	12
Phosphosite 17:	MIST	Q7Z7G1	S29	FSLPKNRSWPRINSA	100 / 5 AA	50
Phosphosite 18:	PRPF4B	Q13523	S477	RRDRGRRSRSRLRRR	75 / 8 AA	117
Phosphosite 19:	DNMT3B	Q9UBC3	S51	PEIRGRRSSSRLSKR	75 / 8 AA	96
Phosphosite 20:	KIAA1529	Q9P1Z9	S1557	KPLIERGSRKWPGIK	71 / 7 AA	198