$VAR1 = undef;

Summary for peptidase S09.078: peptide cyclase 1

Names
MEROPS Name	peptide cyclase 1
Other names	PCY1

MEROPS Classification
Classification	Clan SC >> Subclan (none) >> Family S9 >> Subfamily A >> S09.078
History	Identifier created: MEROPS 12.1 (26 Apr 2019)

Activity
Catalytic type	Serine
NC-IUBMB	Not yet included in IUBMB recommendations.
Cleavage site specificity	Explanations of how to interpret the following cleavage site sequence logo and specificity matrix can be found here.
Cleavage pattern	P/V/W/AF/Q/A/K (based on 36 cleavages)

Specificity matrix

Amino acid	P4	P3	P2	P1	P1'	P2'	P3'	P4'
Gly	0	1	0	1	0	0	0	0
Pro	24	1	0	4	0	0	1	1
Ala	3	3	2	30	2	1	31	2
Val	2	25	0	0	0	0	2	1
Leu	2	0	0	0	0	0	0	0
Ile	0	0	0	0	1	0	0	0
Met	0	0	0	0	0	0	0	0
Phe	1	1	3	0	32	0	0	0
Tyr	1	0	2	0	0	0	0	0
Trp	0	0	26	0	0	0	0	0
Ser	1	2	0	1	0	0	0	0
Thr	0	0	0	0	0	1	0	0
Cys	0	0	0	0	0	0	0	0
Asn	0	0	0	0	0	0	0	0
Gln	0	0	0	0	1	33	1	0
Asp	0	0	0	0	0	0	1	0
Glu	0	0	0	0	0	0	0	0
Lys	0	1	2	0	0	1	0	32
Arg	1	1	0	0	0	0	0	0
His	0	0	0	0	0	0	0	0