3IAX - JenaLib

Title :   THE CRYSTAL STRUCTURE OF THE TOLB BOX OF COLICIN A IN COMPLEX WITH TOLB REVEALS IMPORTANT DIFFERENCES IN THE RECRUITMENT OF THE COMMON TOLB TRANSLOCATION PORTAL USED BY GROUP A COLICINS

Authors :   C. Li

Date :   15 Jul 09 (Deposition) - 13 Oct 09 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.60

Chains :   Asym./Biol. Unit : A,B

Keywords :   Colicin A, Tolb, Tolb Box, Complex, Protein Transport, Transport, Antibiotic, Antimicrobial, Bacteriocin, Cell Membrane, Membrane, Transmembrane, Bacteriocin Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Zhang, C. Li, M. N. Vankemmelbeke, P. Bardelang, M. Paoli, C. N. Penfold, R. James
The Crystal Structure Of The Tolb Box Of Colicin A In Complex With Tolb Reveals Important Differences In The Recruitment Of The Common Tolb Translocation Portal Used By Group A Colicins.
Mol. Microbiol. V. 75 623 2009
PubMed-ID: 19627502 | Reference-DOI: 10.1111/J.1365-2958.2009.06808.X

Compounds

Molecule 1 - PROTEIN TOLB
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET21A
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	B0740, JW5100, TOLB, UTI89_C0736
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Strain	:	K-12

Molecule 2 - COLICIN-A
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET21A
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	TRANSLOCATION DOMAIN (UNP RESIDUES 1-107)
	Gene	:	CAA, COLA
	Organism Scientific	:	CITROBACTER FREUNDII
	Organism Taxid	:	546
	Other Details	:	THE CAA GENE IS PRESENT ON A PLASMID PCOLA THAT IS TRANSFERABLE BETWEEN STRAINS OF ENTEROBACTERIACEAE INCLUDING CITROBACTER FREUNDII AND E. COLI (MORTON ET AL., 1983. EMBO J. 2(5): 787-789). THE PCOLA PLASMID USED IN THIS STUDY WAS ISOLATED FROM A NALA DERIVATIVE OF THE E. COLI STRAIN W3110 CONTAINING CAA ORIGINALLY ISOLATED FROM C. FREUNDII.

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 3)

Sites (3, 3)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

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
	(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:399
 aligned with TOLB_ECOLI | P0A855 from UniProtKB/Swiss-Prot  Length:430

    Alignment length:399
                                    41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421         
           TOLB_ECOLI    32 DSGRPIGVVPFQWAGPGAAPEDIGGIVAADLRNSGKFNPLDRARLPQQPGSAQEVQPAAWSALGIDAVVVGQVTPNPDGSYNVAYQLVDTGGAPGTVLAQNSYKVNKQWLRYAGHTASDEVFEKLTGIKGAFRTRIAYVVQTNGGQFPYELRVSDYDGYNQFVVHRSPQPLMSPAWSPDGSKLAYVTFESGRSALVIQTLANGAVRQVASFPRHNGAPAFSPDGSKLAFALSKTGSLNLYVMDLASGQIRQVTDGRSNNTEPTWFPDSQNLAFTSDQAGRPQVYKVNINGGAPQRITWEGSQNQDADVSSDGKFMVMVSSNGGQQHIAKQDLATGGVQVLSSTFLDETPSLAPNGTMVIYSSSQGMGSVLNLVSTDGRFKARLPATDGQVKFPAWSPYL 430
               SCOP domains d3iaxa1 A:32-161 automated matches                                                                                                d3iaxa2 A:162-430 automated matches                                                                                                                                                                                                                                           SCOP domains
               CATH domains 3iaxA01 A:32-164  [code=3.40.50.10070, no name defined]                                                                              3iaxA02 A:165-430 TolB, C-terminal domain                                                                                                                                                                                                                                  CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee...ee........hhhhhhhhhhhhh..eee.hhhhh..........hhhhhhh....eeeeeeeee....eeeeeeeeee.......eeeeeeeeee..hhhhhhhhhhhhhhhhhhh.......eeeeeee.......eeeeeee......eeeeee...eeeeee.....eeeeee......eeeeee.....eeeee.....eeeeee.....eeeeee......eeeeee.....eee.......eeeeee.....eeeeee......eeeeee......ee......eeeeeee.....eeeeeeee..eeeeeeee.....eee.......eeeee.....eeeeeeee..eeeeeeee.....eee......eeeeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iax A  32 DSGRPIGVVPFQWAGPGAAPEDIGGIVAADLRNSGKFNPLDRARLPQQPGSAQEVQPAAWSALGIDAVVVGQVTPNPDGSYNVAYQLVDTGGAPGTVLAQNSYKVNKQWLRYAGHTASDEVFEKLTGIKGAFRTRIAYVVQTNGGQFPYELRVSDYDGYNQFVVHRSPQPLMSPAWSPDGSKLAYVTFESGRSALVIQTLANGAVRQVASFPRHNGAPAFSPDGSKLAFALSKTGSLNLYVMDLASGQIRQVTDGRSNNTEPTWFPDSQNLAFTSDQAGRPQVYKVNINGGAPQRITWEGSQNQDADVSSDGKFMVMVSSNGGQQHIAKQDLATGGVQVLSSTFLDETPSLAPNGTMVIYSSSQGMGSVLNLVSTDGRFKARLPATDGQVKFPAWSPYL 430
                                    41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421

Chain B from PDB  Type:PROTEIN  Length:12
 aligned with CEA_CITFR | P04480 from UniProtKB/Swiss-Prot  Length:592

    Alignment length:12
                                    18  
            CEA_CITFR     9 KGDGTGWSSERG  20
               SCOP domains ------------ SCOP domains
               CATH domains ------------ CATH domains
               Pfam domains ------------ Pfam domains
         Sec.struct. author ............ Sec.struct. author
                 SAPs(SNPs) ------------ SAPs(SNPs)
                    PROSITE ------------ PROSITE
                 Transcript ------------ Transcript
                 3iax B   9 KGDGTGWSSERG  20
                                    18

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 '\|'

Classification and Annotation

SCOP Domains (2, 2)

CATH Domains (2, 2)

Pfam Domains (0, 0)

Gene Ontology (15, 16)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (TOLB_ECOLI | P0A855)

molecular function
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0043213	bacteriocin transport	The directed movement of a bacteriocin into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Bacteriocins are a group of antibiotics produced by bacteria and are encoded by a group of naturally occurring plasmids, e.g. Col E1. Bacteriocins are toxic to bacteria closely related to the bacteriocin producing strain.
	GO:0071237	cellular response to bacteriocin	Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a bacteriocin stimulus. A bacteriocin is a protein substance released by certain bacteria that kills but does not lyse closely related strains of bacteria. Specific bacteriocins attach to specific receptors on cell walls and induce specific metabolic block, e.g. cessation of nucleic acid or protein synthesis of oxidative phosphorylation.
	GO:0017038	protein import	The targeting and directed movement of proteins into a cell or organelle. Not all import involves an initial targeting event.
	GO:0015031	protein transport	The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0006810	transport	The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
	GO:0032153	cell division site	The eventual plane of cell division (also known as cell cleavage or cytokinesis) in a dividing cell. In Eukaryotes, the cleavage apparatus, composed of septin structures and the actomyosin contractile ring, forms along this plane, and the mitotic, or meiotic, spindle is aligned perpendicular to the division plane. In bacteria, the cell division site is generally located at mid-cell and is the site at which the cytoskeletal structure, the Z-ring, assembles.
	GO:0030288	outer membrane-bounded periplasmic space	The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
	GO:0042597	periplasmic space	The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

Chain B (CEA_CITFR | P04480)

molecular function
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0019835	cytolysis	The rupture of cell membranes and the loss of cytoplasm.
	GO:0050829	defense response to Gram-negative bacterium	Reactions triggered in response to the presence of a Gram-negative bacterium that act to protect the cell or organism.
	GO:0042742	defense response to bacterium	Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
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: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.

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