4R9I

Crystal structure of cysteine proteinase inhibitor Serpin18 from Bombyx mori

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0004867	molecular_function	serine-type endopeptidase inhibitor activity
A	0005615	cellular_component	extracellular space
A	0030414	molecular_function	peptidase inhibitor activity

Functional Information from PDB Data

site_id	AC1
Number of Residues	5
Details	BINDING SITE FOR RESIDUE NA A 401

Chain	Residue
A	THR284
A	THR286
A	GLN380
A	FLC402
A	HOH501

---

site_id	AC2
Number of Residues	15
Details	BINDING SITE FOR RESIDUE FLC A 402

Chain	Residue
A	LYS232
A	THR284
A	THR286
A	GLU287
A	SER288
A	GLN380
A	NA401
A	HOH568
A	HOH877
A	HOH991
A	HOH995
A	HIS16
A	HIS17
A	HIS18
A	ASN108

---

site_id	AC3
Number of Residues	2
Details	BINDING SITE FOR RESIDUE BME A 403

Chain	Residue
A	TYR202
A	SER227

---