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:	PIK3CA
Human P-Site:	S308
P-Site Sequence:	CFTMPSYSRRISTAT
UniProt:	P42336
Intern. Prot. ID:	IPI00031386

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PIK3CA	P42336	S308	CFTMPSYSRRISTAT	100 / 9 AA	124
Phosphosite 1:	PIK3CA	P42336	Y307	DCFTMPSYSRRISTA	100 / 8 AA	124
Phosphosite 2:	FAM82B	Q96DB5	Y224	TFAEMPWYQRRIAKM	75 / 8 AA	36
Phosphosite 3:	HSF1	Q00613	S226	AHSMPKYSRQFSLEH	66 / 9 AA	57
Phosphosite 4:	C17orf76	Q8NAA5	Y51	AGAGMPPYHRRVGMV	62 / 8 AA	38
Phosphosite 5:	USP7	Q93009	S151	RDDEKSFSRRISHLF	85 / 7 AA	128
Phosphosite 6:	HYAL2	Q12891	S299	VFTRPTYSRRLTGLS	62 / 8 AA	54
Phosphosite 7:	HSF1	Q00613	Y225	SAHSMPKYSRQFSLE	62 / 8 AA	57
Phosphosite 8:	C5orf42	Q9H799	S1858	LLLSEHYSRRISQAY	100 / 6 AA	237
Phosphosite 9:	SFRS18	Q8TF01	S577	RSRSRSYSRRIKIES	100 / 6 AA	93
Phosphosite 10:	CSPG3	O14594	S115	QGRVSLPSYPRRRAN	71 / 7 AA	143
Phosphosite 11:	HYAL2	Q12891	Y298	YVFTRPTYSRRLTGL	71 / 7 AA	54
Phosphosite 12:	SFRS18	Q8TF01	Y576	RRSRSRSYSRRIKIE	100 / 6 AA	93
Phosphosite 13:	CSPG3	O14594	Y116	GRVSLPSYPRRRANA	71 / 7 AA	143
Phosphosite 14:	CAPN14	A8MX76	S18	WKLAPRYSRRASPQQ	75 / 8 AA	80
Phosphosite 15:	LRRC38	Q5VT99	S223	QCSLPMESRRISLRE	66 / 9 AA	32
Phosphosite 16:	KIAA1109	Q2LD37	S3615	LSYKPSYSRSKSISA	66 / 9 AA	555
Phosphosite 17:	HYAL2	Q12891	T297	VYVFTRPTYSRRLTG	83 / 6 AA	54
Phosphosite 18:	ACTL8	Q9H568	S45	CKENPGPSYARRRVS	83 / 6 AA	41
Phosphosite 19:	CARD11	Q9BXL7	Y835	DMGTIPSYSRAQQLL	83 / 6 AA	133
Phosphosite 20:	C5orf42	Q9H799	Y1857	RLLLSEHYSRRISQA	100 / 5 AA	237