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:	IGSF21
Human P-Site:	S329
P-Site Sequence:	EVKHPALSMPMQAEV
UniProt:	Q96ID5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGSF21	Q96ID5	S329	EVKHPALSMPMQAEV	100 / 9 AA	52
Phosphosite 1:	PYGB	P11216	S346	NDTHPALSIPELMRI	85 / 7 AA	97
Phosphosite 2:	MARCH-X	Q8NA82	S236	SELHPALSQAFQGKN	66 / 9 AA	91
Phosphosite 3:	FOXRED2	Q8IWF2	S26	IALHPALSVPPRRDY	85 / 7 AA	78
Phosphosite 4:	OR8S1	Q8NH09	S335	EPGHPELSIPVTPQP	62 / 8 AA	40
Phosphosite 5:	RNF214	Q8ND24	S494	PILNPALSQPSQPSS	66 / 9 AA	78
Phosphosite 6:	IQCH	Q86VS3	S890	TKCMSALSMPMLATS	85 / 7 AA	117
Phosphosite 7:	C15orf42	Q7Z2Z1	S1606	ESFLPALSMPRASRS	100 / 6 AA	211
Phosphosite 8:	ATF7	P17544	S476	ASQRTELSMPIQSHV	55 / 9 AA	53
Phosphosite 9:	GTIFS2P	Q6P1K8	S150	PSLYNSLSMAMQTLK	55 / 9 AA	44
Phosphosite 10:	ZNF828	Q96JM3	S131	PKSIPALSMETQKLG	75 / 8 AA	89
Phosphosite 11:	RC3H1	Q5TC82	S130	STTQSVLSRPMQRKL	55 / 9 AA	126
Phosphosite 12:	AFM	P43652	S366	SRRHPDLSIPELLRI	71 / 7 AA	69
Phosphosite 13:	ELAC2	Q9BQ52	S413	KKEGPTLSVPMVQGE	71 / 7 AA	92
Phosphosite 14:	LONRF3	Q496Y0	S454	QGDKPALSLPLASFD	71 / 7 AA	84
Phosphosite 15:	ST3GAL4	Q11206	S246	IAADKLLSLPMQQPR	83 / 6 AA	38
Phosphosite 16:	C330043M08Rik	Q4G0A6	S99	DTPIPALSVPKKNNK	62 / 8 AA	84
Phosphosite 17:	GOLGA3	Q08378	S127	ALQSLRLSLPMQETQ	83 / 6 AA	167
Phosphosite 18:	EHM2	Q9H329	S786	SRCSPPLSLPMKEET	62 / 8 AA	100
Phosphosite 19:	HECW1	Q76N89	S302	KRFLGKLSMPVQRLL	83 / 6 AA	180
Phosphosite 20:	KLF3	P57682	S96	RRASPGLSMPSSSPP	83 / 6 AA	39