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Title :   STRUCTURE OF PORCINE PANCREATIC ELASTASE COMPLEXED WITH THE ELASTASE INHIBITOR GR143783

Authors :   H. Jhoti, O. M. P. Singh, A. Wonacott

Date :   24 Aug 98 (Deposition) - 25 Aug 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.30

Chains :   Asym./Biol. Unit : P

Keywords :   Serine Protease, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   H. Jhoti, O. M. P. Singh, A. Wonacott

To Be Published
PubMed: search
(for further references see the PDB file header)

Molecule 1 - ELASTASE
	Chains	:	P
	EC Number	:	3.4.21.71
	Organ	:	PANCREAS
	Organism Common	:	PIG
	Organism Scientific	:	SUS SCROFA
	Organism Taxid	:	9823
	Other Details	:	INHIBITOR GR143783 COVALENTLY ATTACHED TO PPE, BOND BETWEEN C 30 (INHIBITOR) AND OG SER 195
	Synonym	:	PPE

		1
Asymmetric/Biological Unit	:	P

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 1)

No.	Name	Count	Type	Full Name
1	1NB	1	Ligand/Ion	2-(2-HYDROXY-CYCLOPENTYL)-PENT-4-ENAL

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HIS P:57 , SER P:190 , CYS P:191 , ASN P:192 , GLY P:193 , ASP P:194 , SER P:195 , SER P:214 , HOH P:367	BINDING SITE FOR RESIDUE 1NB P 1
2	CAT	UNKNOWN	SER P:195	CATALYTIC TRIAD

Asymmetric/Biological Unit

No.	Residues
1	P:42	-	P:58
2	P:136	-	P:201
3	P:168	-	P:182
4	P:191	-	P:220

(no "Cis Peptide Bond" information available for 1BRU)

(no "SAP(SNP)/Variant" information available for 1BRU)

Asymmetric/Biological Unit (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	CEL2A_PIG	29-267	1	P:16-243
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	CEL2A_PIG	69-74	1	P:53-58
3	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	CEL2A_PIG	210-221	1	P:189-200

(no "Exon" information available for 1BRU)

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
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Chain P from PDB  Type:PROTEIN  Length:241
 aligned with CEL2A_PIG | P08419 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:241
                                    38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268 
           CEL2A_PIG     29 VVGGEDARPNSWPWQVSLQYDSSGQWRHTCGGTLVDQSWVLTAAHCISSSRTYRVVLGRHSLSTNEPGSLAVKVSKLVVHQDWNSNQLSNGNDIALLKLASPVSLTDKIQLGCLPAAGTILPNNYVCYVTGWGRLQTNGASPDILQQGQLLVVDYATCSKPGWWGSTVKTNMICAGGDGIISSCNGDSGGPLNCQGANGQWQVHGIVSFGSSLGCNYYHKPSVFTRVSNYIDWINSVIANN  269
               SCOP domains d1brup_ P: Elastase                                                                                                                                                                                                                               SCOP domains
               CATH domains 1bruP01     1bruP02 P:28-120,P:233-245 Trypsin-like serine proteases                                           1bruP01 P:16-27,P:121-232 Trypsin-like serine proteases                                                              1bruP02       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeeeeeee..eeeeeeeeeeee..eeee.hhh......eeeee............eeeeeeeeee........hhh....eeeee..........................eeeeee..............eeeeee...hhhh......hhh....eeee...............eeeee.....eeeeeeeee............eeeeehhh.hhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: P:16-243 UniProt: 29-267                                                                                                                                                                                                     -- PROSITE (1)
                PROSITE (2) ----------------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ------------------------------------------------ PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1bru P   16 VVGGEDARPNSWPWQVSLQYDSSGQWRHTCGGTLVDQSWVLTAAHCISSSRTYRVVLGRHSLSTNEPGSLAVKVSKLVVHQDWNSNQLSNGNDIALLKLASPVSLTDKIQLGCLPAAGTILPNNYVCYVTGWGRLQTNGASPDILQQGQLLVVDYATCSKPGWWGSTVKTNMICAGGDGIISSCNGDSGGPLNCQGANGQWQVHGIVSFGSSLGCNYYHKPSVFTRVSNYIDWINSVIANN  245
                                    25        35 |||    42        52        62   |    71        81        91       99B       109       119       129       139       150       160       170||     178       188|      197     | 206       216 |   | 224       234       244 
                                               36A||                           65A                                99A|                                              148|                 170A|               188A           202A            217A   |                         
                                                36B|                                                               99B                                               150                  170B                                                  220A                         
                                                 36C

Legend:		→ Mismatch	(orange background)
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	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: Trypsin-like serine proteases (1752)

Superfamily: Trypsin-like serine proteases (1752)

Family: Eukaryotic proteases (1343)

Protein domain: Elastase (123)

Pig (Sus scrofa) [TaxId: 9823] (116)

d1brup_

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: Thrombin, subunit H (1535)

Homologous Superfamily: Trypsin-like serine proteases (1488)

Pig (Sus scrofa) (115)

1a	1bruP02	P:28-120,P:233-245
1b	1bruP01	P:16-27,P:121-232

(no "Pfam Domain" information available for 1BRU)

Asymmetric/Biological Unit(hide GO term definitions)

Chain P (CEL2A_PIG | P08419)

molecular function
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0008233	peptidase activity	Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
	GO:0017171	serine hydrolase activity	Catalysis of the hydrolysis of a substrate by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
	GO:0004252	serine-type endopeptidase activity	Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
	GO:0008236	serine-type peptidase activity	Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
	GO:0061436	establishment of skin barrier	Establishment of the epithelial barrier, the functional barrier in the skin that limits its permeability.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
	GO:0005615	extracellular space	That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

Asymmetric/Biological Unit
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Description

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Ligands, Modified Residues, Ions (1, 1)

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SS Bonds (4, 4)

Cis Peptide Bonds (0, 0)

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