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:	MMP21
Human P-Site:	S539
P-Site Sequence:	DKDKQQNSWLPANGL
UniProt:	Q8N119
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MMP21	Q8N119	S539	DKDKQQNSWLPANGL	100 / 9 AA	65
Phosphosite 1:	MLL2	O14686	S3009	QQQQQQHSLLPAPGP	66 / 9 AA	564
Phosphosite 2:	UBP1	Q9NZI7	S51	PIFKQEDSSLPLDGE	62 / 8 AA	60
Phosphosite 3:	USP29	Q9HBJ7	S898	LLRKAENSRLPSTQA	55 / 9 AA	104
Phosphosite 4:	RNF148	Q8N7C7	S100	SRPKQADSWLALIER	62 / 8 AA	34
Phosphosite 5:	SRRM2	Q9UQ35	S1227	PETKEQNSALPTSSQ	66 / 9 AA	300
Phosphosite 6:	TNRC6B	Q9UPQ9	S1455	HTGPAGDSWLPAKSP	83 / 6 AA	194
Phosphosite 7:	Putative uncharacterized protein UNQ3029/PRO9830	Q6UWF6	S73	SSPFIQQSSRLPARG	71 / 7 AA	13
Phosphosite 8:	RUSC1	Q9BVN2	S809	LKSRRPSSWLPPTVS	44 / 9 AA	96
Phosphosite 9:	C9orf23	Q8N5L8	S95	RFLQTEDSWVPASPD	57 / 7 AA	18
Phosphosite 10:	C9orf5	Q9H330	S594	LHVSRQNSWLGDILD	83 / 6 AA	101
Phosphosite 11:	FLJ14262	Q9H7U1	S231	FSHSIQNSFLPPSSI	71 / 7 AA	94
Phosphosite 12:	RUSC1	Q9BVN2	S808	ALKSRRPSSWLPPTV	50 / 8 AA	96
Phosphosite 13:	C20orf117	O94964	S896	ELEKQDNSWKETRSE	83 / 6 AA	160
Phosphosite 14:	XKR8	Q9H6D3	S308	ATWVTHSSWLPSGIP	57 / 7 AA	45
Phosphosite 15:	KIAA0859	Q8N6R0	Y252	AVQERQQYAWLCSQL	57 / 7 AA	79
Phosphosite 16:	DCP2	Q8IU60	S347	QPAKQQNSLMKCEKK	71 / 7 AA	48
Phosphosite 17:	ISM2	Q6H9L7	S240	PPPQDTLSWLPALWS	100 / 5 AA	64
Phosphosite 18:	HIPK1	Q86Z02	S840	VRQQQSSSLPSKKNK	62 / 8 AA	131
Phosphosite 19:	RIMBP2	O15034	S410	TQISAQLSWLPTNSN	71 / 7 AA	116
Phosphosite 20:	ARID5B	Q14865	S1093	LCNSGLNSRLPAGYS	83 / 6 AA	132