1Y4H - 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)

Title :   WILD TYPE STAPHOPAIN-STAPHOSTATIN COMPLEX

Authors :   R. Filipek, J. Potempa, M. Bochtler

Date :   30 Nov 04 (Deposition) - 18 Jan 05 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.93

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

Keywords :   Cysteine Protease, Inhibitor, Staphopain B, Staphostatin B, Hydrolase-Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   R. Filipek, J. Potempa, M. Bochtler
A Comparison Of Staphostatin B With Standard Mechanism Serine Protease Inhibitors.
J. Biol. Chem. V. 280 14669 2005
PubMed-ID: 15644332 | Reference-DOI: 10.1074/JBC.M411792200
(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 BL21(DE3)
	Expression System Plasmid	:	PETDUET
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	RESIDUES 220-393
	Gene	:	SSPB
	Organism Scientific	:	STAPHYLOCOCCUS AUREUS
	Organism Taxid	:	1280
	Synonym	:	STAPHOPAIN B

Molecule 2 - CYSTEINE PROTEASE INHIBITOR
	Chains	:	C, D
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PETDUET
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Gene	:	SSPC
	Organism Scientific	:	STAPHYLOCOCCUS AUREUS
	Organism Taxid	:	1280
	Synonym	:	STAPHOSTATIN B

		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 (1x)	B (1x)	C (1x)	D (1x)

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 9)

No.	Name	Count	Type	Full Name
1	CL	4	Ligand/Ion	CHLORIDE ION
2	SO4	5	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 4)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	SO4	4	Ligand/Ion	SULFATE ION

Biological Unit 2 (1, 1)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	SO4	1	Ligand/Ion	SULFATE ION

Biological Unit 3 (1, 4)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	SO4	4	Ligand/Ion	SULFATE ION

Asymmetric Unit (9, 9)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HIS C:50	BINDING SITE FOR RESIDUE CL C 450
2	AC2	SOFTWARE	HIS D:50	BINDING SITE FOR RESIDUE CL D 451
3	AC3	SOFTWARE	HIS C:18 , HOH C:480	BINDING SITE FOR RESIDUE CL C 452
4	AC4	SOFTWARE	HIS A:337	BINDING SITE FOR RESIDUE CL A 453
5	AC5	SOFTWARE	LYS B:232 , ARG B:234 , ASP B:259	BINDING SITE FOR RESIDUE SO4 B 460
6	AC6	SOFTWARE	LYS A:232 , ARG A:234	BINDING SITE FOR RESIDUE SO4 A 461
7	AC7	SOFTWARE	THR C:22 , ASN C:25 , HOH C:473	BINDING SITE FOR RESIDUE SO4 C 462
8	AC8	SOFTWARE	LYS A:256 , ARG A:298	BINDING SITE FOR RESIDUE SO4 A 463
9	AC9	SOFTWARE	ARG C:101	BINDING SITE FOR RESIDUE SO4 C 464

(no "SS Bond" information available for 1Y4H)

(no "Cis Peptide Bond" information available for 1Y4H)

(no "SAP(SNP)/Variant" information available for 1Y4H)

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

(no "Exon" information available for 1Y4H)

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:173
 aligned with SSPB_STAA8 | Q2FZL3 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:173
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAA8   221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYEQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1y4ha1 A:221-393 Staphopain SspB                                                                                                                                             SCOP domains
               CATH domains 1y4hA00 A:221-393 Cysteine proteinases                                                                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee..............hhhhhhhhhhhhhhhh....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeeee..........eeeeeeeeeeee..eeeeeee.......eeee....eeee...eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1y4h A 221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

Chain A from PDB  Type:PROTEIN  Length:173
 aligned with SSPB_STAAU | P0C1S6 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:173
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAAU   221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1y4ha1 A:221-393 Staphopain SspB                                                                                                                                             SCOP domains
               CATH domains 1y4hA00 A:221-393 Cysteine proteinases                                                                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee..............hhhhhhhhhhhhhhhh....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
                 1y4h A 221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

Chain B from PDB  Type:PROTEIN  Length:173
 aligned with SSPB_STAA8 | Q2FZL3 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:173
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAA8   221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYEQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1y4hb_ B: Staphopain SspB                                                                                                                                                    SCOP domains
               CATH domains 1y4hB00 B:221-393 Cysteine proteinases                                                                                                                                        CATH domains
           Pfam domains (1) Peptidase_C47-1y4hB01 B:221-393                                                                                                                                               Pfam domains (1)
           Pfam domains (2) Peptidase_C47-1y4hB02 B:221-393                                                                                                                                               Pfam domains (2)
         Sec.struct. author .eeeeee..............hhhhhhhhhhhhhhhh....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeee...........eeeeeeeeeeee..eeeeeee.......eeee....eeee...eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1y4h B 221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

Chain B from PDB  Type:PROTEIN  Length:173
 aligned with SSPB_STAAU | P0C1S6 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:173
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390   
           SSPB_STAAU   221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
               SCOP domains d1y4hb_ B: Staphopain SspB                                                                                                                                                    SCOP domains
               CATH domains 1y4hB00 B:221-393 Cysteine proteinases                                                                                                                                        CATH domains
           Pfam domains (1) Peptidase_C47-1y4hB01 B:221-393                                                                                                                                               Pfam domains (1)
           Pfam domains (2) Peptidase_C47-1y4hB02 B:221-393                                                                                                                                               Pfam domains (2)
         Sec.struct. author .eeeeee..............hhhhhhhhhhhhhhhh....hhhhhhhhhh......hhhhh..hhhhhhhhhhhh....eeee...hhhhhhhhhhh...eeeeee...........eeeeeeeeeeee..eeeeeee.......eeee....eeee...eeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ---------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1y4h B 221 QVQYENTLKNFKIREQQFDNSWCAGFSMAALLNATKNTDTYNAHDIMRTLYPEVSEQDLPNCATFPNQMIEYGKSQGRDIHYQEGVPSYNQVDQLTKDNVGIMILAQSVSQNPNDPHLGHALAVVGNAKINDQEKLIYWNPWDTELSIQDADSSLLHLSFNRDYNWYGSMIGY 393
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390

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

    Alignment length:109
                                    10        20        30        40        50        60        70        80        90       100         
           SSPC_STAA8     1 MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSIDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
               SCOP domains d1y4hc_ C: Staphostatin B (SspC)                                                                              SCOP domains
               CATH domains 1y4hC00 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
                 1y4h C   1 MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSFDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
                                    10        20        30        40        50        60        70        80        90       100

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

    Alignment length:109
                                    10        20        30        40        50        60        70        80        90       100         
           SSPC_STAA8     1 MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSIDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
               SCOP domains d1y4hd_ D: Staphostatin B (SspC)                                                                              SCOP domains
               CATH domains 1y4hD00 D:1-109 Staphostatins                                                                                 CATH domains
           Pfam domains (1) Staphostatin_B-1y4hD01 D:1-107                                                                             -- Pfam domains (1)
           Pfam domains (2) Staphostatin_B-1y4hD02 D:1-107                                                                             -- Pfam domains (2)
         Sec.struct. author ..eeeeeeee.hhhhhhhhhhhhhhh..eeeee....eeeeeee.......eeeeeeee....eeeeee.....eeeeeeeee..eeeeeeee.........eeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------- Transcript
                 1y4h D   1 MYQLQFINLVYDTTKLTHLEQTNINLFIGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSFDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV 109
                                    10        20        30        40        50        60        70        80        90       100

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	d1y4hc_	C:
1b	d1y4hd_	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	d1y4ha1	A:221-393
2b	d1y4hb_	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	1y4hA00	A:221-393
1b	1y4hB00	B:221-393

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: Staphostatins (5)

Homologous Superfamily: Staphostatins (5)

Staphylococcus aureus. Organism_taxid: 1280. (2)

2a	1y4hC00	C:1-109
2b	1y4hD00	D:1-109

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Peptidase_CA (169)

Family: Peptidase_C47 (3)

Staphylococcus aureus (3)

1a	Peptidase_C47-1y4hB01	B:221-393
1b	Peptidase_C47-1y4hB02	B:221-393

Clan: bBprotInhib (5)

Family: Staphostatin_B (4)

Staphylococcus aureus (strain NCTC 8325) (2)

2a	Staphostatin_B-1y4hD01	D:1-107
2b	Staphostatin_B-1y4hD02	D:1-107

Asymmetric Unit(hide GO term definitions)

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 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 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 1y4h)

Biological Units
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	1y4h
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Access by UniProt ID/Accession number
	SSPB_STAA8 \| Q2FZL3
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	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

Access by Enzyme Classificator (EC Number)
	3.4.22.-
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	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
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	SSPB_STAA8 \| Q2FZL3	:	1pxv 1x9y
	SSPB_STAAU \| P0C1S6	:	1pxv 1x9y
	SSPC_STAA8 \| Q9EYW6	:	1pxv

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 9)

Sites (9, 9)

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)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File