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:	S874
P-Site Sequence:	KGALQFNSHTLHQWL
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	S874	KGALQFNSHTLHQWL	100 / 9 AA	124
Phosphosite 1:	PIK3CA	P42336	T876	ALQFNSHTLHQWLKD	100 / 7 AA	124
Phosphosite 2:	C14orf50	Q96LQ0	T376	RCLFNPHTLHPLDPE	85 / 7 AA	49
Phosphosite 3:	TIE2	Q02763	S798	EPAVQFNSGTLALNR	75 / 8 AA	126
Phosphosite 4:	ZNF592	Q92610	S246	GEALEFNSHPSNSIG	83 / 6 AA	138
Phosphosite 5:	RYR1	P21817	S1663	LDLQRFHSHTLRLYR	62 / 8 AA	565
Phosphosite 6:	RTN4RL1	Q86UN2	S315	ASPHQIKSHTLTTTD	71 / 7 AA	49
Phosphosite 7:	Rad17	O75943	T238	QFYRDSHTLHEVLRK	83 / 6 AA	76
Phosphosite 8:	RYR1	P21817	T1665	LQRFHSHTLRLYRAV	71 / 7 AA	565
Phosphosite 9:	FLJ20643	Q9NWS0	S265	YIPLQINSHESKAAF	83 / 6 AA	32
Phosphosite 10:	Rad17	O75943	S236	PNQFYRDSHTLHEVL	83 / 6 AA	76
Phosphosite 11:	USMG5	Q96IX5	Y22	IKKYFNSYTLTGRMN	83 / 6 AA	6
Phosphosite 12:	USMG5	Q96IX5	T23	KKYFNSYTLTGRMNC	83 / 6 AA	6
Phosphosite 13:	ERBB2IP	Q96RT1	S70	KQLFNCQSLHKLSLP	57 / 7 AA	158
Phosphosite 14:	GPR124	Q96PE1	S213	QNRSLQLSEHTLCAY	62 / 8 AA	143
Phosphosite 15:	TNXB	P22105	S1976	LTVEEATSHTLHLSW	62 / 8 AA	464
Phosphosite 16:	WDFY3	Q8IZQ1	S1470	KKRSLLNSHILHLTF	71 / 7 AA	395
Phosphosite 17:	C6orf142	Q5VWP3	S428	LSDEQENSHTLLSHN	85 / 7 AA	50
Phosphosite 18:	DHODH	Q02127	S150	INRYGFNSHGLSVVE	83 / 6 AA	43
Phosphosite 19:	UNC80	Q8N2C7	S1414	KDSLHSSSHTLKSDA	62 / 8 AA	363
Phosphosite 20:	UNC80	Q8N2C7	S1413	SKDSLHSSSHTLKSD	62 / 8 AA	363