##gff-version 3
P21812	UniProtKB	Signal peptide	1	18	.	.	.	.	
P21812	UniProtKB	Propeptide	19	20	.	.	.	ID=PRO_0000027453;Note=Activation peptide;Ontology_term=ECO:0000269,ECO:0000269,ECO:0000269;evidence=ECO:0000269|PubMed:2326280,ECO:0000269|PubMed:8363563,ECO:0000269|PubMed:9538257;Dbxref=PMID:2326280,PMID:8363563,PMID:9538257	
P21812	UniProtKB	Chain	21	246	.	.	.	ID=PRO_0000027454;Note=Mast cell protease 4	
P21812	UniProtKB	Domain	21	244	.	.	.	Note=Peptidase S1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274	
P21812	UniProtKB	Active site	65	65	.	.	.	Note=Charge relay system;Ontology_term=ECO:0000250;evidence=ECO:0000250	
P21812	UniProtKB	Active site	109	109	.	.	.	Note=Charge relay system;Ontology_term=ECO:0000250;evidence=ECO:0000250	
P21812	UniProtKB	Active site	202	202	.	.	.	Note=Charge relay system;Ontology_term=ECO:0000250;evidence=ECO:0000250	
P21812	UniProtKB	Disulfide bond	50	66	.	.	.	Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274	
P21812	UniProtKB	Disulfide bond	143	208	.	.	.	Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274	
P21812	UniProtKB	Disulfide bond	174	187	.	.	.	Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274	
P21812	UniProtKB	Natural variant	61	61	.	.	.	Note=In strain: C57BL/6 and Leaden XA1. M->L	
P21812	UniProtKB	Natural variant	160	160	.	.	.	Note=In strain: C57BL/6 and Leaden XA1. T->I	
P21812	UniProtKB	Natural variant	246	246	.	.	.	Note=In strain: C57BL/6 and Leaden XA1. E->KK