1KN9 - JenaLib

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Biological Unit 3 (Jmol Viewer)

Biological Unit 4 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF A BACTERIAL SIGNAL PEPTIDASE APO-ENZYME, IMPLICATIONS FOR SIGNAL PEPTIDE BINDING AND THE SER-LYS DYAD MECHANISM.

Authors :   M. Paetzel, R. E. Dalbey, N. C. J. Strynadka

Date :   18 Dec 01 (Deposition) - 30 Jan 02 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

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

Keywords :   Serine Protease, Lysine General Base, Membrane Protein, Mostly Beta-Fold, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Paetzel, R. E. Dalbey, N. C. J. Strynadka
Crystal Structure Of A Bacterial Signal Peptidase Apoenzyme: Implications For Signal Peptide Binding And The Ser-Lys Dyad Mechanism
J. Biol. Chem. V. 277 9512 2002
PubMed-ID: 11741964 | Reference-DOI: 10.1074/JBC.M110983200
(for further references see the PDB file header)

Molecule 1 - SIGNAL PEPTIDASE I
	Chains	:	A, B, C, D
	EC Number	:	3.4.21.89
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PET3D
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	RESIDUES 76-323, PLUS INITIATING METHIONINE
	Gene	:	LEPB
	Organism Scientific	:	ESCHERICHIA COLI K12
	Organism Taxid	:	83333
	Strain	:	K-12
	Synonym	:	SPASE I, LEADER PEPTIDASE I

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

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 1KN9)

(no "Site" information available for 1KN9)

Asymmetric Unit

No.	Residues
1	B:170	-	B:176

Asymmetric Unit

No.	Residues
1	Met A:92	-	Pro A:93
2	Met B:92	-	Pro B:93
3	Met C:92	-	Pro C:93
4	Met D:92	-	Pro D:93

(no "SAP(SNP)/Variant" information available for 1KN9)

Asymmetric Unit (3, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SPASE_I_1	PS00501	Signal peptidases I serine active site.	LEP_ECOLI	89-96	4	A:88-95 B:88-95 C:88-95 D:88-95
2	SPASE_I_2	PS00760	Signal peptidases I lysine active site.	LEP_ECOLI	146-158	4	A:145-157 B:145-157 C:145-157 D:145-157
3	SPASE_I_3	PS00761	Signal peptidases I signature 3.	LEP_ECOLI	269-282	4	A:268-281 B:268-281 C:268-281 D:268-281

Biological Unit 1 (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SPASE_I_1	PS00501	Signal peptidases I serine active site.	LEP_ECOLI	89-96	1	A:88-95 - - -
2	SPASE_I_2	PS00760	Signal peptidases I lysine active site.	LEP_ECOLI	146-158	1	A:145-157 - - -
3	SPASE_I_3	PS00761	Signal peptidases I signature 3.	LEP_ECOLI	269-282	1	A:268-281 - - -

Biological Unit 2 (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SPASE_I_1	PS00501	Signal peptidases I serine active site.	LEP_ECOLI	89-96	1	- B:88-95 - -
2	SPASE_I_2	PS00760	Signal peptidases I lysine active site.	LEP_ECOLI	146-158	1	- B:145-157 - -
3	SPASE_I_3	PS00761	Signal peptidases I signature 3.	LEP_ECOLI	269-282	1	- B:268-281 - -

Biological Unit 3 (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SPASE_I_1	PS00501	Signal peptidases I serine active site.	LEP_ECOLI	89-96	1	- - C:88-95 -
2	SPASE_I_2	PS00760	Signal peptidases I lysine active site.	LEP_ECOLI	146-158	1	- - C:145-157 -
3	SPASE_I_3	PS00761	Signal peptidases I signature 3.	LEP_ECOLI	269-282	1	- - C:268-281 -

Biological Unit 4 (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SPASE_I_1	PS00501	Signal peptidases I serine active site.	LEP_ECOLI	89-96	1	- - - D:88-95
2	SPASE_I_2	PS00760	Signal peptidases I lysine active site.	LEP_ECOLI	146-158	1	- - - D:145-157
3	SPASE_I_3	PS00761	Signal peptidases I signature 3.	LEP_ECOLI	269-282	1	- - - D:268-281

(no "Exon" information available for 1KN9)

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:234
 aligned with LEP_ECOLI | P00803 from UniProtKB/Swiss-Prot  Length:324

    Alignment length:248
                                    86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316        
            LEP_ECOLI    77 VRSFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQACENALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFDKQEGEWPTGLRLSRIGGIH 324
               SCOP domains d1kn9a_ A: Type 1 signal peptidase                                                                                                                                                                                                                       SCOP domains
               CATH domains 1kn9A01 A:76-153,A:263-323 Umud Fragment, subunit A                           1kn9A02 A:154-188,A     :224-262   -----------------------------------1kn9A02 A:154-188,A:224-262            1kn9A01 A:76-153,A:263-323 Umud Fragment,          subunit A  CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .ee..eeeee.............eeeeeee.eeee........eeee.......eeeee.......eeeeeeee....eeeee....eeeee.....-----....eee...eeeeeeeeeehhhhh.eeeeeee.........eeeeeeeeeee..eeeeeee......hhhhh.........eee....eeeee........hhhhhh.ee...eeeeeeeeeee..---------.hhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------SPASE_I_-------------------------------------------------SPASE_I_2    --------------------------------------------------------------------------------------------------------------SPASE_I_3     ------------------------------------------ PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kn9 A  76 VRSFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSS-----NALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFD---------LRLSRIGGIH 323
                                    85        95       105       115       125       135       145       155       165      |  -  |    185       195       205       215       225       235       245       255       265       275       285       295        |-       315        
                                                                                                                          172   178                                                                                                                           304       314

Chain B from PDB  Type:PROTEIN  Length:222
 aligned with LEP_ECOLI | P00803 from UniProtKB/Swiss-Prot  Length:324

    Alignment length:246
                                    88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318      
            LEP_ECOLI    79 SFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQACENALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFDKQEGEWPTGLRLSRIGGIH 324
               SCOP domains d1kn9b_ B: Type 1 signal pepti                dase                                                                                                                                                                                                     SCOP domains
               CATH domains 1kn9B01 B:78-153,B:263-319 Umu                d Fragment, subunit A         1kn9B02 B:154-188,B:224-262        -----------------------------------1kn9B02 B:154-188,B:224-262            1kn9B01 B:78-153,B:263-319 Umud Fragment,         subunit---- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eee.................eeeeeee..----------------......eeeee.......eeeeeeee....eeeee....eeeee..............eee...eeeeeeeeee.......eeeeee..........eeeeeeeeee..eeeeeee......hhhhh.........eee....eeeee........hhhhhh.ee...eeeeeeeeeee..--------..hhhhhee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------SPASE_I_-------------------------------------------------SPASE_I_2    --------------------------------------------------------------------------------------------------------------SPASE_I_3     ------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1kn9 B  78 SFIYEPFQIPSGSMMPTLLIGDFILVEKFA----------------HPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQACENALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFD--------GLRLSRIGGIH 323
                                    87        97       107         -      |127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297      |  -     | 317      
                                                       107              124                                                                                                                                                                                 304      313

Chain C from PDB  Type:PROTEIN  Length:234
 aligned with LEP_ECOLI | P00803 from UniProtKB/Swiss-Prot  Length:324

    Alignment length:248
                                    86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316        
            LEP_ECOLI    77 VRSFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQACENALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFDKQEGEWPTGLRLSRIGGIH 324
               SCOP domains d1kn9c_ C: Type 1 signal peptidase                                                                                                                                                                                                                       SCOP domains
               CATH domains 1kn9C01 C:76-153,C:263-323 Umud Fragment, subunit A                           1kn9C02 C:154-188,C     :224-262   -----------------------------------1kn9C02 C:154-188,C:224-262            1kn9C01 C:76-153,C:263-323 Umud Fragment,          subunit A  CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eeeee.............eeeeeee.eeeee......eeeee.......eeeee.......eeeeeeee....eeeee....eeeee.....-----....eee...eeeeeeee...........eeee.........eeeeeeeeeee..eeeeeee......hhhhh.........eee....eeeee........hhhhhh.ee...eeeeeeeeeee..---------.hhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------SPASE_I_-------------------------------------------------SPASE_I_2    --------------------------------------------------------------------------------------------------------------SPASE_I_3     ------------------------------------------ PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kn9 C  76 VRSFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSS-----NALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFD---------LRLSRIGGIH 323
                                    85        95       105       115       125       135       145       155       165      |  -  |    185       195       205       215       225       235       245       255       265       275       285       295        |-       315        
                                                                                                                          172   178                                                                                                                           304       314

Chain D from PDB  Type:PROTEIN  Length:214
 aligned with LEP_ECOLI | P00803 from UniProtKB/Swiss-Prot  Length:324

    Alignment length:246
                                    88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318      
            LEP_ECOLI    79 SFIYEPFQIPSGSMMPTLLIGDFILVEKFAYGIKDPIYQKTLIETGHPKRGDIVVFKYPEDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQACENALPVTYSNVEPSDFVQTFSRRNGGEATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFDKQEGEWPTGLRLSRIGGIH 324
               SCOP domains d1kn9d_ D: Type 1 signal pept                  idase                                                                                                                                                                                                   SCOP domains
               CATH domains 1kn9D01 D:78-153,D:263-319 Um                  ud Fragment , subunit A      1kn9D02 D:154-188,D:22  4-262      -----------   ---------------------1kn9D02 D:154-188,D:224-262            1kn9D01 D:78-153,D:263-319 Umud Fragment,         subunit---- CATH domains
           Pfam domains (1) -------Peptidase_S24-1kn9D01                   D:85-169                                     ------  ----------------------   -----------------------------Peptidase_S26-1kn9D05 D:232-301                                       ---        ----------- Pfam domains (1)
           Pfam domains (2) -------Peptidase_S24-1kn9D02                   D:85-169                                     ------  ----------------------   -----------------------------Peptidase_S26-1kn9D06 D:232-301                                       ---        ----------- Pfam domains (2)
           Pfam domains (3) -------Peptidase_S24-1kn9D03                   D:85-169                                     ------  ----------------------   -----------------------------Peptidase_S26-1kn9D07 D:232-301                                       ---        ----------- Pfam domains (3)
           Pfam domains (4) -------Peptidase_S24-1kn9D04                   D:85-169                                     ------  ----------------------   -----------------------------Peptidase_S26-1kn9D08 D:232-301                                       ---        ----------- Pfam domains (4)
         Sec.struct. author .eee.................eeeeee..------------------.....eeee..-......eeeeeee....eeeee....eeeee........--....eee...eeeeeeeeee..---..eeeeee..........eeeeeeeeee..eeeeeee......hhhhh.........eee....eeeee........hhhhhh.ee...eeeeeeeeeee..--------..hhhhhee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------SPASE_I_-------------------------------------------------SPASE_I_2    --------------------------------------------------------------------------------------------------------------SPASE_I_3     ------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1kn9 D  78 SFIYEPFQIPSGSMMPTLLIGDFILVEKF------------------PKRGDIVVFKY-EDPKLDYIKRAVGLPGDKVTYDPVSKELTIQPGCSSGQA--NALPVTYSNVEPSDFVQTFSRR---EATSGFFEVPKNETKENGIRLSERKETLGDVTHRILTVPIAQDQVGMYYQQPGQQLATWIVPPGQYFMMGDNRDNSADSRYWGFVPEANLVGRATAIWMSFD--------GLRLSRIGGIH 323
                                    87        97        |-         -       127       137       147       157       167       | -|      187       197 |   | 207       217       227       237       247       257       267       277       287       297      |  -     | 317      
                                                      106                125       135 |                                   175  |                  199 203                                                                                                  304      313          
                                                                                     137                                      178

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: LexA/Signal peptidase (17)

Superfamily: LexA/Signal peptidase (17)

Family: Type 1 signal peptidase (5)

Protein domain: Type 1 signal peptidase (5)

Escherichia coli [TaxId: 562] (5)

1a	d1kn9a_	A:
1b	d1kn9b_	B:
1c	d1kn9c_	C:
1d	d1kn9d_	D:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Beta Complex (381)

Topology: Signal Peptidase I; Chain: A, domain 2 (4)

Homologous Superfamily: [code=2.170.230.10, no name defined] (4)

Escherichia coli k12. Organism_taxid: 83333. Strain: k-12. (1)

1a	1kn9B02	B:154-188,B:224-262
1b	1kn9D02	D:154-188,D:224-262
1c	1kn9A02	A:154-188,A:224-262
1d	1kn9C02	C:154-188,C:224-262

Architecture: Ribbon (789)

Topology: Umud Fragment, subunit A (13)

Homologous Superfamily: Umud Fragment, subunit A (13)

Escherichia coli k12. Organism_taxid: 83333. Strain: k-12. (1)

2a	1kn9B01	B:78-153,B:263-319
2b	1kn9D01	D:78-153,D:263-319
2c	1kn9A01	A:76-153,A:263-323
2d	1kn9C01	C:76-153,C:263-323

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Peptidase_SF (8)

Family: Peptidase_S24 (8)

Escherichia coli (strain K12) (7)

1a	Peptidase_S24-1kn9D01	D:85-169
1b	Peptidase_S24-1kn9D02	D:85-169
1c	Peptidase_S24-1kn9D03	D:85-169
1d	Peptidase_S24-1kn9D04	D:85-169

Family: Peptidase_S26 (1)

Escherichia coli (strain K12) (1)

2a	Peptidase_S26-1kn9D05	D:232-301
2b	Peptidase_S26-1kn9D06	D:232-301
2c	Peptidase_S26-1kn9D07	D:232-301
2d	Peptidase_S26-1kn9D08	D:232-301

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (LEP_ECOLI | P00803)

molecular function
	GO:0004175	endopeptidase activity	Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain.
	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: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).
	GO:0015643	toxic substance binding	Interacting selectively and non-covalently with a toxic substance, a poisonous substance that causes damage to biological systems.
biological process
	GO:0016485	protein processing	Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a protein. Protein maturation is the process leading to the attainment of the full functional capacity of a protein.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
	GO:0006465	signal peptide processing	The proteolytic removal of a signal peptide from a protein during or after transport to a specific location in the cell.
cellular component
	GO:0016021	integral component of membrane	The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	GO:0005887	integral component of plasma membrane	The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Asymmetric Unit
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	Ligands, Modified Residues, Ions
(no "Ligands, Modified Residues, Ions" information available for 1kn9)

	Sites
(no "Sites" information available for 1kn9)

	Cis Peptide Bonds
		Met A:92 - Pro A:93	[ RasMol ]
		Met B:92 - Pro B:93	[ RasMol ]
		Met C:92 - Pro C:93	[ RasMol ]
		Met D:92 - Pro D:93	[ RasMol ]

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

Jmol
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	1kn9
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	3.4.21.89
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	LEP_ECOLI \| P00803	:	1b12 1t7d 3iiq 3s04

1b12	CRYSTAL STRUCTURE OF TYPE 1 SIGNAL PEPTIDASE FROM ESCHERICHIA COLI IN COMPLEX WITH A LACTAM INHIBITOR

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (1, 1)

Cis Peptide Bonds (4, 4)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 12)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (2, 8)

Pfam Domains (2, 8)

Gene Ontology (13, 13)

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