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:	IGHA1
Human P-Site:	S281
P-Site Sequence:	EKYLTWASRQEPSQG
UniProt:	P01876
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGHA1	P01876	S281	EKYLTWASRQEPSQG	100 / 9 AA	38
Phosphosite 1:	IGHA2	P01877	S268	EKYLTWASRQEPSQG	100 / 9 AA	37
Phosphosite 2:	PF4V1	P10720	T13	RSRLTRATRQEMLFL	75 / 8 AA	12
Phosphosite 3:	KIF27	Q86VH2	S1265	SEELKWASRPESMKL	75 / 8 AA	160
Phosphosite 4:	NDST2	P52849	S215	LLHLTRPSRLEPGPL	66 / 9 AA	101
Phosphosite 5:	PLEKHM2	Q8IWE5	S428	LDPSTWCSRAEPPDQ	75 / 8 AA	113
Phosphosite 6:	IGHA2	P01877	T265	LPREKYLTWASRQEP	100 / 6 AA	37
Phosphosite 7:	IGHA1	P01876	T278	LPREKYLTWASRQEP	100 / 6 AA	38
Phosphosite 8:	TRAF4AF1	Q9Y448	S237	LGSETLASRQESTTD	75 / 8 AA	35
Phosphosite 9:	RBM10	P98175	S428	GEGTWATSEEPPVDY	62 / 8 AA	104
Phosphosite 10:	ZDHHC17	Q8IUH5	T132	STPLHWATRQGHLSM	55 / 9 AA	73
Phosphosite 11:	Septin-4	O43236	S57	PEAKTWASRPQVPEP	71 / 7 AA	55
Phosphosite 12:	Putative uncharacterized protein FLJ46214	Q6ZRN7	S158	GTSLTWPSRAPLPRP	83 / 6 AA	21
Phosphosite 13:	PTCHD2	Q9P2K9	S818	GSGVPWASRPEATLQ	62 / 8 AA	153
Phosphosite 14:	Putative uncharacterized protein FLJ46214	Q6ZRN7	T155	PLPGTSLTWPSRAPL	83 / 6 AA	21
Phosphosite 15:	Cdc25B	P30305	S219	HALAEWASRREAFAQ	71 / 7 AA	65
Phosphosite 16:	Septin-4	O43236	T54	CHPPEAKTWASRPQV	100 / 5 AA	55
Phosphosite 17:	PLEKHG1	Q9ULL1	S1061	IQKDGWASPQESSLL	83 / 6 AA	155
Phosphosite 18:	ASH2L	Q9UBL3	T177	LSALANLTWQSRTQD	83 / 6 AA	69
Phosphosite 19:	Nedd4-BP2	Q86UW6	S29	VVVSSVASREEPTTT	83 / 6 AA	199
Phosphosite 20:	FAM98C	Q17RN3	S331	PPMPTWRSRREDGGP	71 / 7 AA	37