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:	PRSS21
Human P-Site:	S291
P-Site Sequence:	LMAQSGMSQPDPSWP
UniProt:	Q9Y6M0
Intern. Prot. ID:	IPI00305703

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PRSS21	Q9Y6M0	S291	LMAQSGMSQPDPSWP	100 / 9 AA	35
Phosphosite 1:	SATL1	Q86VE3	S57	CKNQTDMSQPDANQS	66 / 9 AA	56
Phosphosite 2:	C11orf53	Q8IXP5	S116	QTLPDGLSQPDPVSA	85 / 7 AA	25
Phosphosite 3:	C11orf82	Q8IXT1	S843	SPIVSGVSQPDVFNH	85 / 7 AA	112
Phosphosite 4:	Putative CDC37-like protein LOC390688	O75198	S192	FPRQAGMSVRDPPQL	66 / 9 AA	27
Phosphosite 5:	Putative CDC37-like protein ENSP00000350273	A6NIL8	S192	FPRQAGMSVRDPPQL	66 / 9 AA	26
Phosphosite 6:	SERPINB6	P35237	S306	KADFSGMSQTDLSLS	85 / 7 AA	43
Phosphosite 7:	DHRS4	Q9BTZ2	T7	_MASSGMTRRDPLAN	62 / 8 AA	28
Phosphosite 8:	FAM134C	Q86VR2	S456	LLDQSELSQLDPASS	66 / 9 AA	51
Phosphosite 9:	SATL1	Q86VE3	S225	GTSQIGMSQPGTWQT	75 / 8 AA	56
Phosphosite 10:	SATL1	Q86VE3	S190	GTNQSGISQPVMWQL	85 / 7 AA	56
Phosphosite 11:	RAD23A	P54725	S112	PAPTSGMSHPPPAAR	75 / 8 AA	40
Phosphosite 12:	MPST	P25325	S147	LPLSSGKSQPAPAEF	75 / 8 AA	33
Phosphosite 13:	ARHGAP23	Q9P227	S248	DNSSLGMSQPRPSPG	85 / 7 AA	162
Phosphosite 14:	ETV4	P43268	S169	FLRSSGTSQPHPGHG	75 / 8 AA	54
Phosphosite 15:	ARID1B	Q8NFD5	S1252	APYQQGMSMPDVMGR	75 / 8 AA	236
Phosphosite 16:	SYT3	Q9BQG1	S240	LTQQTLTSQPDPSSE	66 / 9 AA	63
Phosphosite 17:	PPTC7	Q8NI37	T22	VLGGLSQTDPRAGGG	71 / 7 AA	33
Phosphosite 18:	PPTC7	Q8NI37	S20	RAVLGGLSQTDPRAG	62 / 8 AA	33
Phosphosite 19:	GDF5OS	Q5U4N7	S128	SFQMSNTSQPDPSRP	75 / 8 AA	28
Phosphosite 20:	SATL1	Q86VE3	S32	DMSQPGMSQQVPSQP	66 / 9 AA	56