Volume 12, Issue 8, Pages (August 2005)

Slides:



Advertisements
Similar presentations
In Vitro Discriminative Antipseudomonal Properties Resulting from Acyl Substitution of N-Terminal Sequence of Dermaseptin S4 Derivatives  Keren Marynka,
Advertisements

Probing α-310 Transitions in a Voltage-Sensing S4 Helix
Volume 21, Issue 1, Pages (January 2014)
Volume 11, Issue 8, Pages (August 2004)
Probing α-310 Transitions in a Voltage-Sensing S4 Helix
Volume 21, Issue 1, Pages (January 2014)
Volume 12, Issue 10, Pages (October 2005)
Macrolactamization of Glycosylated Peptide Thioesters by the Thioesterase Domain of Tyrocidine Synthetase  Hening Lin, Desiree A. Thayer, Chi-Huey Wong,
Covalent Reactions of Wortmannin under Physiological Conditions
Katharina M. Hoyer, Christoph Mahlert, Mohamed A. Marahiel 
Volume 20, Issue 7, Pages (July 2013)
Volume 20, Issue 8, Pages (August 2013)
Chaoyou Xue, Natalie R. Whitis, Dipali G. Sashital  Molecular Cell 
Marcel Zimmermann, Julian D. Hegemann, Xiulan Xie, Mohamed A. Marahiel 
Chemical Probes of UDP-Galactopyranose Mutase
Evidence for a Monomeric Structure of Nonribosomal Peptide Synthetases
Volume 15, Issue 10, Pages (October 2008)
Volume 19, Issue 7, Pages (July 2012)
Volume 21, Issue 8, Pages (August 2014)
Volume 19, Issue 12, Pages (December 2012)
Conversion of Red Fluorescent Protein into a Bright Blue Probe
Identification and Characterization of the Lysobactin Biosynthetic Gene Cluster Reveals Mechanistic Insights into an Unusual Termination Module Architecture 
Kento Koketsu, Hiroki Oguri, Kenji Watanabe, Hideaki Oikawa 
Scanning Near-Field Fluorescence Resonance Energy Transfer Microscopy
Characterization of a Fungal Thioesterase Having Claisen Cyclase and Deacetylase Activities in Melanin Biosynthesis  Anna L. Vagstad, Eric A. Hill, Jason W.
Kevin J. Forsberg, Sanket Patel, Timothy A. Wencewicz, Gautam Dantas 
Volume 12, Issue 1, Pages (January 2005)
Insights into the Generation of Structural Diversity in a tRNA-Dependent Pathway for Highly Modified Bioactive Cyclic Dipeptides  Tobias W. Giessen, Alexander M.
Volume 12, Issue 9, Pages (September 2005)
Volume 11, Issue 6, Pages (June 2004)
Leslie A. Nangle, Candace M. Motta, Paul Schimmel  Chemistry & Biology 
Alexander Falkenhagen, Sadhna Joshi  Molecular Therapy - Nucleic Acids 
Volume 12, Issue 12, Pages (December 2005)
Identification of Small Molecule Inhibitors that Distinguish between Non-Transferrin Bound Iron Uptake and Transferrin-Mediated Iron Transport  Jing Xu.
Engineered Domain Swapping as an On/Off Switch for Protein Function
Benoit Villiers, Florian Hollfelder  Chemistry & Biology 
Volume 17, Issue 4, Pages (April 2010)
Volume 11, Issue 11, Pages (November 2004)
Volume 15, Issue 1, Pages 5-11 (January 2008)
Volume 14, Issue 9, Pages (September 2007)
Targeting MgrA-Mediated Virulence Regulation in Staphylococcus aureus
Volume 17, Issue 9, Pages (September 2010)
Volume 11, Issue 1, Pages (January 2004)
Kevin M. Marks, Michael Rosinov, Garry P. Nolan  Chemistry & Biology 
Volume 122, Issue 2, Pages (July 2005)
Inhibitor Mediated Protein Degradation
An Electrophoretic Mobility Shift Assay Identifies a Mechanistically Unique Inhibitor of Protein Sumoylation  Yeong Sang Kim, Katelyn Nagy, Samantha Keyser,
Structural Basis for Phosphopantetheinyl Carrier Domain Interactions in the Terminal Module of Nonribosomal Peptide Synthetases  Ye Liu, Tengfei Zheng,
Volume 13, Issue 3, Pages (March 2006)
Volume 18, Issue 12, Pages (December 2011)
Allosteric Regulation of Hsp70 Chaperones by a Proline Switch
Volume 22, Issue 11, Pages (November 2015)
Methods for the Elucidation of Protein-Small Molecule Interactions
The Membrane-Lytic Peptides K8L9 and Melittin Enter Cancer Cells via Receptor Endocytosis following Subcytotoxic Exposure  Masayuki Kohno, Tomohisa Horibe,
Volume 21, Issue 2, Pages (February 2014)
Protein Kinase D Inhibitors Uncouple Phosphorylation from Activity by Promoting Agonist-Dependent Activation Loop Phosphorylation  Maya T. Kunkel, Alexandra C.
Xinxin Gao, Rami N. Hannoush  Cell Chemical Biology 
Volume 18, Issue 1, Pages (January 2011)
Volume 20, Issue 7, Pages (July 2013)
Damien Thévenin, Ming An, Donald M. Engelman  Chemistry & Biology 
Volume 12, Issue 9, Pages (September 2005)
Volume 110, Issue 11, Pages (June 2016)
Interdomain Communication between the Thiolation and Thioesterase Domains of EntF Explored by Combinatorial Mutagenesis and Selection  Zhe Zhou, Jonathan.
David Jung, Annett Rozek, Mark Okon, Robert E.W Hancock 
Volume 25, Issue 9, Pages e3 (September 2017)
Cracking the Nonribosomal Code
Benoit Villiers, Florian Hollfelder  Chemistry & Biology 
Volume 21, Issue 3, Pages (March 2014)
Covalent Reactions of Wortmannin under Physiological Conditions
Volume 15, Issue 5, Pages (May 2007)
Presentation transcript:

Volume 12, Issue 8, Pages 873-881 (August 2005) Fluorescence Resonance Energy Transfer as a Probe of Peptide Cyclization Catalyzed by Nonribosomal Thioesterase Domains  Jan Grünewald, Florian Kopp, Christoph Mahlert, Uwe Linne, Stephan A. Sieber, Mohamed A. Marahiel  Chemistry & Biology  Volume 12, Issue 8, Pages 873-881 (August 2005) DOI: 10.1016/j.chembiol.2005.05.019 Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 1 Fluorescence Resonance Energy Transfer in Daptomycin (A) Daptomycin is a branched cyclic nonribosomally assembled acidic lipopeptide produced by Streptomyces roseosporus. This decapeptide lactone adopts a conformation in which the kynurenine (Kyn) fluorophore is in close spatial proximity to the tryptophan (Trp) residue, allowing fluorescence resonance energy transfer (FRET) to occur. The methyl group of nonproteinogenic L-3-methylglutamate is indicated by shading. (B) The structure of a linear daptomycin derivative is shown. The fluorescent residues Kyn and Trp are highlighted. (C) Emission spectra of the linear and cyclic daptomycin derivatives in methanol and DMSO 9:1 (v/v): red line, linear daptomycin derivative; black line, cyclic daptomycin derivative; excitation wavelength = 280 nm. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 2 Proposed Model for the Energetic Interactions between Trp and Kyn (A) In case of the linear daptomycin derivative (Figure 1B), excitation at 280 nm preferentially leads to emission of Trp. After cyclization (Figure 1A), this emission at ∼330 nm is efficiently quenched due to fluorescence resonance energy transfer (FRET), which induces fluorescence of Kyn in the visible region of light. (B) Fluorescence enhancement by TE-mediated peptide cyclization is shown. An assay containing 200 μM linear peptidyl thioester (lnDap-U1W13) and 5 μM CDA TE was quenched by aqueous TFA and analyzed by HPLC: upper HPLC trace, absorbance at 215 nm; lower HPLC trace, fluorescence at 452 nm (excitation wavelength = 280 nm). Su, substrate; Hy, hydrolyzed product; Cy, cyclized product. The fluorescence signal is slightly shifted to higher retention times, because the solvent reaches the fluorescence detector after passing the UV-detection cell. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 3 Macrocyclic Peptides Used in This Study All fluorophore-tagged cyclopeptides are shown using 3 letter amino acid codes. The FRET pair in each compound is highlighted. The figures in the middle of the macrocycles denote the number of amino acid residues between Trp and Kyn. Macrolactonization/macrolactamization is indicated by gray shading. Kyn, kynurenine; Orn, ornithine; FA, fatty acid. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 4 Fluorescence Studies of Linear and Cyclic Daptomycin Derivatives Determination of EmKyn/EmTrp ratios of linear and cyclic daptomycin derivatives with systematically altered distance between Trp and Kyn: linear daptomycin derivatives, white bars; cyclic daptomycin derivatives, gray bars. All bars represent mean values of three measurements. Excitation wavelength = 280 nm. U, kynurenine; W, tryptophan. The error bars represent the standard error of the mean. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 5 Real-Time Monitoring of Peptide Cyclization (A) Sample contained 75 μM lnDap-U3W13 and 5 μM CDA TE (square). The negative control was conducted in the presence of 5 μM heat-denatured CDA cyclase (triangle). (B) The cuvette contained 50 μM lnTyc-U2W8 and 0.5 μM Tyc TE (square). The negative control was done in the presence of 0.5 μM heat-denatured Tyc TE (triangle). Excitation wavelength = 280 nm, emission wavelength = 452 nm. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions

Figure 6 Immobilization of CDA Cyclase by Site-Directed Posttranslational Modification and Subsequent Detection of Reaction Products (A) HPLC trace of lnDap-U1W13 prior to cyclization by immobilized CDA cyclase (red trace). Immobilized CDA TE was incubated with lnDap-U1W13 for 3 hr at 25°C (black trace). (B) Detection of generated cyclopeptide by FRET. The red trace shows the fluorescence signal of lnDap-U1W13 prior to loading onto the column. The black trace shows the fluorescence signal after CDA TE-mediated cyclization. Excitation wavelength = 280 nm, emission wavelength = 452 nm. Chemistry & Biology 2005 12, 873-881DOI: (10.1016/j.chembiol.2005.05.019) Copyright © 2005 Elsevier Ltd Terms and Conditions