4EST

CRYSTAL STRUCTURE OF THE COVALENT COMPLEX FORMED BY A PEPTIDYL ALPHA,ALPHA-DIFLUORO-BETA-KETO AMIDE WITH PORCINE PANCREATIC ELASTASE AT 1.78-ANGSTROMS RESOLUTION

Functional Information from GO Data

Chain	GOid	namespace	contents
E	0004252	molecular_function	serine-type endopeptidase activity
E	0005515	molecular_function	protein binding
E	0005576	cellular_component	extracellular region
E	0005615	cellular_component	extracellular space
E	0006508	biological_process	proteolysis
E	0008236	molecular_function	serine-type peptidase activity
E	0046872	molecular_function	metal ion binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	6
Details	BINDING SITE FOR RESIDUE SO4 E 301

Chain	Residue
E	HOH543
E	GLY127
E	ARG230
E	SER232
E	ALA233
E	HOH463

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site_id	AC2
Number of Residues	6
Details	BINDING SITE FOR RESIDUE CA E 302

Chain	Residue
E	GLU70
E	ASN72
E	GLN75
E	ASN77
E	GLU80
E	HOH425

---

site_id	AC3
Number of Residues	14
Details	BINDING SITE FOR CHAIN I OF INHIBITOR ACE-ALA-PRO-VAI-DIFLUORO-N-PHENYLETHYLACETAMIDE

Chain	Residue
E	HIS40
E	THR41
E	CYS42
E	HIS57
E	CYS191
E	GLN192
E	GLY193
E	ASP194
E	SER195
E	SER214
E	PHE215
E	VAL216
E	SER217
E	ARG217

---

site_id	CAT
Number of Residues	4
Details	CATALYTIC SITE

Chain	Residue
E	HIS57
E	ASP102
E	SER195
E	SER214

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Functional Information from PROSITE/UniProt

site_id	PS00134
Number of Residues	6
Details	TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. MTAAHC

Chain	Residue	Details
E	MET53-CYS58

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site_id	PS00135
Number of Residues	12
Details	TRYPSIN_SER Serine proteases, trypsin family, serine active site. SGcqGDSGGPLH

Chain	Residue	Details
E	SER189-HIS200

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Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	1
Details	ACT_SITE: Charge relay system => ECO:0000269|PubMed:4578945, ECO:0000269|PubMed:5415110

Chain	Residue	Details
E	HIS57

---

site_id	SWS_FT_FI2
Number of Residues	2
Details	ACT_SITE: Charge relay system => ECO:0000269|PubMed:5415110

Chain	Residue	Details
E	ASP102
E	SER195

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site_id	SWS_FT_FI3
Number of Residues	4
Details	BINDING: BINDING => ECO:0000269|PubMed:7656008, ECO:0007744|PDB:1ELA, ECO:0007744|PDB:1ELB, ECO:0007744|PDB:1ELC

Chain	Residue	Details
E	GLU70
E	ASN72
E	GLN75
E	GLU80

---

Catalytic Information from CSA

site_id	CSA1
Number of Residues	2
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	ASP102
E	HIS57

---

site_id	CSA2
Number of Residues	2
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	SER195
E	GLY196

---

site_id	CSA3
Number of Residues	2
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	SER195
E	GLY193

---

site_id	CSA4
Number of Residues	3
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	ASP102
E	SER195
E	HIS57

---

site_id	CSA5
Number of Residues	4
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	ASP102
E	SER195
E	HIS57
E	GLY196

---

site_id	CSA6
Number of Residues	4
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	ASP102
E	SER195
E	GLY193
E	HIS57

---

site_id	CSA7
Number of Residues	5
Details	Annotated By Reference To The Literature 1a0j

Chain	Residue	Details
E	ASP102
E	SER195
E	GLY193
E	HIS57
E	SER214

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