2KC8 - JenaLib

Title :   STRUCTURE OF E. COLI TOXIN RELE (R81A/R83A) MUTANT IN COMPLEX WITH ANTITOXIN RELBC (K47-L79) PEPTIDE

Authors :   G. Li, Y. Zhang, M. Inouye, M. Ikura

Date :   17 Dec 08 (Deposition) - 17 Mar 09 (Release) - 30 Jun 09 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A,B  (20x)

Keywords :   Protein/Protein Complex, Toxin Rele, Antitoxin Relb, Repressor, Stress Response, Toxin, Transcription, Transcription Regulation, Toxin/Toxin Repressor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   G. Y. Li, Y. Zhang, M. Inouye, M. Ikura
Inhibitory Mechanism Of Escherichia Coli Rele-Relb Toxin-Antitoxin Module Involves A Helix Displacement Near An Mrna Interferase Active Site.
J. Biol. Chem. V. 284 14628 2009
PubMed-ID: 19297318 | Reference-DOI: 10.1074/JBC.M809656200
(for further references see the PDB file header)

Compounds

Molecule 1 - TOXIN RELE
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	BL21
	Expression System Taxid	:	562
	Expression System Variant	:	DE3
	Expression System Vector	:	PET28A
	Gene	:	RELE, B1563, JW1555
	Mutation	:	YES
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	83333
	Other Details	:	RELE IS EXPRESSED WITH HIS-TAG FUSION. THE HIS-TAG IS REMOVED BY THROMBIN AFTERWARD
	Strain	:	K-12

Molecule 2 - ANTITOXIN RELB
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	BL21
	Expression System Taxid	:	562
	Expression System Variant	:	DE3
	Expression System Vector	:	PGEX2T
	Fragment	:	UNP RESIDUES 47-79
	Gene	:	RELB, B1564, JW1556
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	83333
	Other Details	:	RELBC (K47-L79) IS EXPRESSED WITH GST-TAG FUSION. THE GST-TAG IS REMOVED BY THROMBIN AFTERWARD
	Strain	:	K-12

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

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

NMR Structure

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)
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Chain A from PDB  Type:PROTEIN  Length:95
 aligned with RELE_ECOLI | P0C077 from UniProtKB/Swiss-Prot  Length:95

    Alignment length:95
                                    10        20        30        40        50        60        70        80        90     
            RELE_ECOLI    1 MAYFLDFDERALKEWRKLGSTVREQLKKKLVEVLESPRIEANKLRGMPDCYKIKLRSSGYRLVYQVIDEKVVVFVISVGKRERSEVYSEAVKRIL 95
               SCOP domains ----------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----Plasmid_stabil-2kc8A01 A:5-85                                                    ---------- Pfam domains
         Sec.struct. author ...eeeeehhhhhhhhh.hhhhhhhhhhhhhhhh....hhhhh......eeeee......eeeeeee....eeeeeeee...hhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------- Transcript
                  2kc8 A  1 MAYFLDFDERALKEWRKLGSTVREQLKKKLVEVLESPRIEANKLRGMPDCYKIKLRSSGYRLVYQVIDEKVVVFVISVGKAEASEVYSEAVKRIL 95
                                    10        20        30        40        50        60        70        80        90

Chain B from PDB  Type:PROTEIN  Length:33
 aligned with RELB_ECOLI | P0C079 from UniProtKB/Swiss-Prot  Length:79

    Alignment length:33
                                    56        66        76   
            RELB_ECOLI   47 KQTLLSDEDAELVEIVKERLRNPKPVRVTLDEL 79
               SCOP domains --------------------------------- SCOP domains
               CATH domains --------------------------------- CATH domains
               Pfam domains RelB-2kc8B01 B:47-79              Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhh...eeee..... Sec.struct. author
                 SAPs(SNPs) --------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------- PROSITE
                 Transcript --------------------------------- Transcript
                  2kc8 B 47 KQTLLSDEDAELVEIVKERLRNPKPVRVTLDEL 79
                                    56        66        76

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Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (2, 2)

Gene Ontology (17, 20)

NMR Structure(hide GO term definitions)

Chain A (RELE_ECOLI | P0C077)

molecular function
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0004519	endonuclease activity	Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
	GO:0004521	endoribonuclease activity	Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
	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:0004518	nuclease activity	Catalysis of the hydrolysis of ester linkages within nucleic acids.
	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).
	GO:0019843	rRNA binding	Interacting selectively and non-covalently with ribosomal RNA.
	GO:0043022	ribosome binding	Interacting selectively and non-covalently with any part of a ribosome.
biological process
	GO:0090502	RNA phosphodiester bond hydrolysis, endonucleolytic	The chemical reactions and pathways involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
	GO:0034198	cellular response to amino acid starvation	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 deprivation of amino acids.
	GO:0006402	mRNA catabolic process	The chemical reactions and pathways resulting in the breakdown of mRNA, messenger RNA, which is responsible for carrying the coded genetic 'message', transcribed from DNA, to sites of protein assembly at the ribosomes.
	GO:0017148	negative regulation of translation	Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
	GO:0090305	nucleic acid phosphodiester bond hydrolysis	The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
	GO:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0046677	response to antibiotic	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
	GO:0006351	transcription, DNA-templated	The cellular synthesis of RNA on a template of DNA.

Chain B (RELB_ECOLI | P0C079)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	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:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0006351	transcription, DNA-templated	The cellular synthesis of RNA on a template of DNA.

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