1PXV - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Biological Unit 4 (Jmol Viewer)

Title :   THE STAPHOSTATIN-STAPHOPAIN COMPLEX: A FORWARD BINDING INHIBITOR IN COMPLEX WITH ITS TARGET CYSTEINE PROTEASE

Authors :   R. Filipek, M. Rzychon, A. Oleksy, M. Gruca, A. Dubin, J. Potempa, M. Bochtler

Date :   07 Jul 03 (Deposition) - 21 Oct 03 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.80

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,C  (1x)
Biol. Unit 2: B,D  (1x)
Biol. Unit 3: A,B,C,D  (1x)
Biol. Unit 4: A (1x),B (1x),C (1x),D (1x)

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

Reference :   R. Filipek, M. Rzychon, A. Oleksy, M. Gruca, A. Dubin, J. Potempa, M. Bochtler
The Staphostatin-Staphopain Complex: A Forward Binding Inhibitor In Complex With Its Target Cysteine Protease.
J. Biol. Chem. V. 278 40959 2003
PubMed-ID: 12874290 | Reference-DOI: 10.1074/JBC.M302926200
(for further references see the PDB file header)

Molecule 1 - CYSTEINE PROTEASE
	Chains	:	A, B
	EC Number	:	3.4.22.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	E. COLI BL21 (DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PET15
	Gene	:	STAPHOPAIN B
	Mutation	:	YES
	Organism Scientific	:	STAPHYLOCOCCUS AUREUS
	Organism Taxid	:	1280

Molecule 2 - CYSTEINE PROTEASE INHIBITOR
	Chains	:	C, D
	EC Number	:	3.4.22.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	E. COLI BL21 (DE3)[PLYSS]
	Expression System Taxid	:	562
	Expression System Vector Type	:	PGEX-5T
	Gene	:	STAPHOSTATIN B
	Organism Scientific	:	STAPHYLOCOCCUS AUREUS
	Organism Taxid	:	1280

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A		C
Biological Unit 2 (1x)	:		B		D
Biological Unit 3 (1x)	:	A	B	C	D
Biological Unit 4 (1x)	:	A (1x)	B (1x)	C (1x)	D (1x)

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 6)

No.	Name	Count	Type	Full Name
1	GAI	1	Ligand/Ion	GUANIDINE
2	SO4	5	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 3)

No.	Name	Count	Type	Full Name
1	GAI	-1	Ligand/Ion	GUANIDINE
2	SO4	3	Ligand/Ion	SULFATE ION

Biological Unit 2 (2, 3)

No.	Name	Count	Type	Full Name
1	GAI	1	Ligand/Ion	GUANIDINE
2	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 3 (2, 6)

No.	Name	Count	Type	Full Name
1	GAI	1	Ligand/Ion	GUANIDINE
2	SO4	5	Ligand/Ion	SULFATE ION

Biological Unit 4 (2, 3)

No.	Name	Count	Type	Full Name
1	GAI	1	Ligand/Ion	GUANIDINE
2	SO4	2	Ligand/Ion	SULFATE ION

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HOH A:606 , LYS B:232 , ARG B:234 , HOH B:576 , HOH B:590	BINDING SITE FOR RESIDUE SO4 B 459
2	AC2	SOFTWARE	LYS A:232 , ARG A:234	BINDING SITE FOR RESIDUE SO4 A 460
3	AC3	SOFTWARE	ASN B:381 , ARG B:382 , ASP B:383 , HOH B:541 , HOH B:626 , HIS D:62 , ARG D:64	BINDING SITE FOR RESIDUE SO4 B 461
4	AC4	SOFTWARE	ARG A:382 , ASP A:383 , HIS C:62 , ARG C:64	BINDING SITE FOR RESIDUE SO4 A 462
5	AC5	SOFTWARE	HIS A:213 , HIS A:214 , HIS A:215 , HIS A:217 , HIS B:213 , HIS B:215 , HIS B:217	BINDING SITE FOR RESIDUE SO4 A 463
6	AC6	SOFTWARE	GLU A:291 , LYS A:294	BINDING SITE FOR RESIDUE GAI B 464

(no "SS Bond" information available for 1PXV)

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

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

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	THIOL_PROTEASE_HIS	PS00639	Eukaryotic thiol (cysteine) proteases histidine active site.	SSPB_STAA8	338-348	2	A:338-348 B:338-348
1	THIOL_PROTEASE_HIS	PS00639		SSPB_STAAU	338-348	2	A:338-348 B:338-348

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	THIOL_PROTEASE_HIS	PS00639	Eukaryotic thiol (cysteine) proteases histidine active site.	SSPB_STAA8	338-348	1	A:338-348 -
1	THIOL_PROTEASE_HIS	PS00639		SSPB_STAAU	338-348	1	A:338-348 -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	THIOL_PROTEASE_HIS	PS00639	Eukaryotic thiol (cysteine) proteases histidine active site.	SSPB_STAA8	338-348	1	- B:338-348
1	THIOL_PROTEASE_HIS	PS00639		SSPB_STAAU	338-348	1	- B:338-348

Biological Unit 3 (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	THIOL_PROTEASE_HIS	PS00639	Eukaryotic thiol (cysteine) proteases histidine active site.	SSPB_STAA8	338-348	2	A:338-348 B:338-348
1	THIOL_PROTEASE_HIS	PS00639		SSPB_STAAU	338-348	2	A:338-348 B:338-348

Biological Unit 4 (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	THIOL_PROTEASE_HIS	PS00639	Eukaryotic thiol (cysteine) proteases histidine active site.	SSPB_STAA8	338-348	2	A:338-348 B:338-348
1	THIOL_PROTEASE_HIS	PS00639		SSPB_STAAU	338-348	2	A:338-348 B:338-348

(no "Exon" information available for 1PXV)

Asymmetric 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
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:183
 aligned with SSPB_STAA8 | Q2FZL3 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:211
                                   192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392 
           SSPB_STAA8   183 GNVKEKESAKTVSAKLKQELKNTVTPTKVEENEAIQEDQVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYEQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d                            1pxva_ A: Staphopain SspB                                                                                                                                                              SCOP domains
               CATH domains 1                            pxvA00 A:211-393 Cysteine proteinases                                                                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .----------------------------..........eeeeee..............hhhhhhhhhhhhhhhh....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeee...........eeeeeeeeeeee..eeeeeee.......eeee....eeeehhheeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv A 211 G----------------------------HHHHHHEFDQVQYENTLKNFKIREQQFDNSWAAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                            |        -         -       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392 
                            |                          212                                                                                                                                                                                     
                          211

Chain A from PDB  Type:PROTEIN  Length:183
 aligned with SSPB_STAAU | P0C1S6 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:183
                                   220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAAU   211 VEENEAIQEDQVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1pxva_ A: Staphopain SspB                                                                                                                                                              SCOP domains
               CATH domains 1pxvA00 A:211-393 Cysteine proteinases                                                                                                                                                  CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eeeeee..............hhhhhhhhhhhhhhhh....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeee...........eeeeeeeeeeee..eeeeeee.......eeee....eeeehhheeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv A 211 GHHHHHHEFDQVQYENTLKNFKIREQQFDNSWAAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

Chain B from PDB  Type:PROTEIN  Length:183
 aligned with SSPB_STAA8 | Q2FZL3 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:211
                                   192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392 
           SSPB_STAA8   183 GNVKEKESAKTVSAKLKQELKNTVTPTKVEENEAIQEDQVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYEQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d                            1pxvb_ B: Staphopain SspB                                                                                                                                                              SCOP domains
               CATH domains 1                            pxvB00 B:211-393 Cysteine proteinases                                                                                                                                                  CATH domains
           Pfam domains (1) -------------------------------------Peptidase_C47-1pxvB01 B:220-393                                                                                                                                                Pfam domains (1)
           Pfam domains (2) -------------------------------------Peptidase_C47-1pxvB02 B:220-393                                                                                                                                                Pfam domains (2)
         Sec.struct. author .----------------------------..........eeeeee..............hhhhhhhhhhhhhhh.....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeeee..........eeeeeeeeeeee..eeeeeee.......eeee....eeee...eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv B 211 G----------------------------HHHHHHEFDQVQYENTLKNFKIREQQFDNSWAAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                            |        -         -       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392 
                          211                          212

Chain B from PDB  Type:PROTEIN  Length:183
 aligned with SSPB_STAAU | P0C1S6 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:183
                                   220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAAU   211 VEENEAIQEDQVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1pxvb_ B: Staphopain SspB                                                                                                                                                              SCOP domains
               CATH domains 1pxvB00 B:211-393 Cysteine proteinases                                                                                                                                                  CATH domains
           Pfam domains (1) ---------Peptidase_C47-1pxvB01 B:220-393                                                                                                                                                Pfam domains (1)
           Pfam domains (2) ---------Peptidase_C47-1pxvB02 B:220-393                                                                                                                                                Pfam domains (2)
         Sec.struct. author ...........eeeeee..............hhhhhhhhhhhhhhh.....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeeee..........eeeeeeeeeeee..eeeeeee.......eeee....eeee...eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv B 211 GHHHHHHEFDQVQYENTLKNFKIREQQFDNSWAAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

Chain C from PDB  Type:PROTEIN  Length:111
 aligned with SSPC_STAA8 | Q9EYW6 from UniProtKB/Swiss-Prot  Length:109

    Alignment length:111
                              1                                                                                                            
                              |      8        18        28        38        48        58        68        78        88        98       108 
           SSPC_STAA8     - --MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSIDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
               SCOP domains d1pxvc_ C: Staphostatin B (SspC)                                                                                SCOP domains
               CATH domains 1pxvC00 C:-1-109 Staphostatins                                                                                  CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeeee.hhhhhhhhhhhhhhh..eeeee....eeeeeee.......eeeeeeee....eeeeee..eeeeeeeeeeee..eeeeeeee.........eeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv C  -1 GSMYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSFDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
                                     8        18        28        38        48        58        68        78        88        98       108

Chain D from PDB  Type:PROTEIN  Length:111
 aligned with SSPC_STAA8 | Q9EYW6 from UniProtKB/Swiss-Prot  Length:109

    Alignment length:111
                              1                                                                                                            
                              |      8        18        28        38        48        58        68        78        88        98       108 
           SSPC_STAA8     - --MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSIDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
               SCOP domains d1pxvd_ D: Staphostatin B (SspC)                                                                                SCOP domains
               CATH domains 1pxvD00 D:-1-109 Staphostatins                                                                                  CATH domains
           Pfam domains (1) --Staphostatin_B-1pxvD01 D:1-107                                                                             -- Pfam domains (1)
           Pfam domains (2) --Staphostatin_B-1pxvD02 D:1-107                                                                             -- Pfam domains (2)
         Sec.struct. author ....eeeeeeee.hhhhhhhhhhhhhhh..eeeee....eeeeeee.......eeeeeeee....eeeeee..eeeeeeeeeeee..eeeeeeee.........eeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------- Transcript
                 1pxv D  -1 GSMYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSFDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
                                     8        18        28        38        48        58        68        78        88        98       108

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	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 Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: Streptavidin-like (225)

Superfamily: beta-Barrel protease inhibitors (7)

Family: Staphostatin (5)

Protein domain: Staphostatin B (SspC) (4)

Staphylococcus aureus [TaxId: 1280] (4)

1a	d1pxvc_	C:
1b	d1pxvd_	D:

Class: Alpha and beta proteins (a+b) (23004)

Fold: Cysteine proteinases (392)

Superfamily: Cysteine proteinases (392)

Family: Papain-like (200)

Protein domain: Staphopain SspB (3)

Staphylococcus aureus [TaxId: 1280] (3)

2a	d1pxva_	A:
2b	d1pxvb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: Alpha-Beta Complex (3881)

Topology: Cathepsin B; Chain A (207)

Homologous Superfamily: Cysteine proteinases (207)

Staphylococcus aureus. Organism_taxid: 1280. (3)

1a	1pxvA00	A:211-393
1b	1pxvB00	B:211-393

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: Staphostatins (5)

Homologous Superfamily: Staphostatins (5)

Staphylococcus aureus. Organism_taxid: 1280. (2)

2a	1pxvC00	C:-1-109
2b	1pxvD00	D:-1-109

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Peptidase_CA (169)

Family: Peptidase_C47 (3)

Staphylococcus aureus (3)

1a	Peptidase_C47-1pxvB01	B:220-393
1b	Peptidase_C47-1pxvB02	B:220-393

Clan: bBprotInhib (5)

Family: Staphostatin_B (4)

Staphylococcus aureus (strain NCTC 8325) (2)

2a	Staphostatin_B-1pxvD01	D:1-107
2b	Staphostatin_B-1pxvD02	D:1-107

Asymmetric Unit(hide GO term definitions)

Chain A,B (SSPB_STAA8 | Q2FZL3)

molecular function
	GO:0008234	cysteine-type peptidase activity	Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
	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.
biological process
	GO:0009405	pathogenesis	The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
	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.

Chain A,B (SSPB_STAAU | P0C1S6)

molecular function
	GO:0008234	cysteine-type peptidase activity	Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
	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.
biological process
	GO:0009405	pathogenesis	The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
	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.

Chain C,D (SSPC_STAA8 | Q9EYW6)

molecular function
	GO:0004869	cysteine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of a cysteine-type endopeptidase, any enzyme that hydrolyzes peptide bonds in polypeptides by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
	GO:0004866	endopeptidase inhibitor activity	Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
	GO:0009405	pathogenesis	The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Asymmetric Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 1pxv)

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]
		Biological Unit 3	[ Jena3D ]
		Biological Unit 4	[ Jena3D ]

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	1pxv
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	SSPB_STAA8 \| Q2FZL3
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	SSPB_STAAU \| P0C1S6
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	SSPC_STAA8 \| Q9EYW6
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

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	3.4.22.-
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	SSPB_STAA8 \| Q2FZL3
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	SSPB_STAAU \| P0C1S6
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	SSPC_STAA8 \| Q9EYW6
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UniProtKB/Swiss-Prot
	SSPB_STAA8 \| Q2FZL3	:	1x9y 1y4h
	SSPB_STAAU \| P0C1S6	:	1x9y 1y4h
	SSPC_STAA8 \| Q9EYW6	:	1y4h

1cv8	STAPHOPAIN A
1nyc	FREE STAPHOSTATIN B

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 6)

Sites (6, 6)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 2)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (2, 4)

CATH Domains (2, 4)

Pfam Domains (2, 4)

Gene Ontology (12, 19)

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File