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Title: Proximity-dependent proteomics of the Chlamydia trachomatis inclusion membrane reveals functional interactions with endoplasmic reticulum exit sites

Journal Article · · PLoS Pathogens

Chlamydia trachomatis is the most common bacterial sexually transmitted infection, responsible for millions of infections each year. Despite this high prevalence, the elucidation of the molecular mechanisms of Chlamydia pathogenesis has been difficult due to limitations in genetic tools and its intracellular developmental cycle. Within a host epithelial cell, chlamydiae replicate within a vacuole called the inclusion. Many Chlamydia–host interactions are thought to be mediated by the Inc family of type III secreted proteins that are anchored in the inclusion membrane, but their array of host targets are largely unknown. To investigate how the inclusion membrane proteome changes over the course of an infected cell, we have adapted the APEX system of proximity-dependent biotinylation. APEX is capable of specifically labeling proteins within a 20 nm radius in living cells. We transformed C. trachomatis to express the enzyme APEX fused to known inclusion membrane proteins, allowing biotinylation and pull-down of inclusion-associated proteins. Using quantitative mass spectrometry against APEX labeled samples, we identified over 400 proteins associated with the inclusion membrane at early, middle, and late stages of epithelial cell infection. This system was sensitive enough to detect inclusion interacting proteins early in the developmental cycle, at 8 hours post infection, a previously intractable time point. Mass spectrometry analysis revealed a novel, early association between C. trachomatis inclusions and endoplasmic reticulum exit sites (ERES), functional regions of the ER where COPII-coated vesicles originate. Pharmacological and genetic disruption of ERES function severely restricted early chlamydial growth and the development of infectious progeny. APEX is therefore a powerful in situ approach for identifying critical protein interactions on the membranes of pathogen-containing vacuoles. Furthermore, the data derived from proteomic mapping of Chlamydia inclusions has illuminated an important functional role for ERES in promoting chlamydial developmental growth.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Institutes of Health (NIH)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1530860
Report Number(s):
PNNL-SA-132851
Journal Information:
PLoS Pathogens, Vol. 15, Issue 4; ISSN 1553-7374
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (100)

p24 family proteins: key players in the regulation of trafficking along the secretory pathway journal July 2015
Measurement of co-localization of objects in dual-colour confocal images journal March 1993
Attachment and Entry of Chlamydia Have Distinct Requirements for Host Protein Disulfide Isomerase journal April 2009
Characterization of interactions between inclusion membrane proteins from Chlamydia trachomatis journal February 2015
Global Mapping of the Inc-Human Interactome Reveals that Retromer Restricts Chlamydia Infection journal July 2015
Development of a Transformation System for Chlamydia trachomatis: Restoration of Glycogen Biosynthesis by Acquisition of a Plasmid Shuttle Vector journal September 2011
CellProfiler: image analysis software for identifying and quantifying cell phenotypes journal October 2006
The Chlamydia Protease CPAF Regulates Host and Bacterial Proteins to Maintain Pathogen Vacuole Integrity and Promote Virulence journal July 2011
KEGG: new perspectives on genomes, pathways, diseases and drugs journal November 2016
Inhibition of cargo export at ER exit sites and the trans-Golgi network by the secretion inhibitor FLI-06 journal September 2016
Concentration of Sec12 at ER exit sites via interaction with cTAGE5 is required for collagen export journal September 2014
A Class of Dynamin-like GTPases Involved in the Generation of the Tubular ER Network journal August 2009
The PRIDE database and related tools and resources in 2019: improving support for quantification data journal November 2018
Reassessing the role of the secreted protease CPAF in Chlamydia trachomatis infection through genetic approaches journal May 2014
Reconceptualizing the chlamydial inclusion as a pathogen-specified parasitic organelle: an expanded role for Inc proteins journal October 2014
IncV, a FFAT motif-containing Chlamydia protein, tethers the endoplasmic reticulum to the pathogen-containing vacuole journal October 2017
TANGO1/cTAGE5 receptor as a polyvalent template for assembly of large COPII coats journal August 2016
COPII-coated vesicles: flexible enough for large cargo? journal August 2005
Two Mammalian Sec16 Homologues Have Nonredundant Functions in Endoplasmic Reticulum (ER) Export and Transitional ER Organization journal March 2007
CPAF: A Chlamydial Protease in Search of an Authentic Substrate journal August 2012
Lipid metabolism in Chlamydia trachomatis-infected cells: directed trafficking of Golgi-derived sphingolipids to the chlamydial inclusion. journal May 1995
mScarlet: a bright monomeric red fluorescent protein for cellular imaging journal November 2016
TANGO1 recruits Sec16 to coordinately organize ER exit sites for efficient secretion journal April 2017
Chlamydia cell biology and pathogenesis journal April 2016
Chlamydia trachomatis Co-opts the FGF2 Signaling Pathway to Enhance Infection journal October 2011
Improved quality control processing of peptide-centric LC-MS proteomics data journal August 2011
Engineered ascorbate peroxidase as a genetically encoded reporter for electron microscopy journal October 2012
Live Cell Discovery of Microbial Vitamin Transport and Enzyme-Cofactor Interactions journal December 2015
Conditional Gene Expression in Chlamydia trachomatis Using the Tet System journal October 2013
A Class of Membrane Proteins Shaping the Tubular Endoplasmic Reticulum journal February 2006
Directed evolution of APEX2 for electron microscopy and proximity labeling journal November 2014
The Lipid Transfer Protein CERT Interacts with the Chlamydia Inclusion Protein IncD and Participates to ER-Chlamydia Inclusion Membrane Contact Sites journal June 2011
TFG facilitates outer coat disassembly on COPII transport carriers to promote tethering and fusion with ER–Golgi intermediate compartments journal August 2017
The chlamydial developmental cycle: Figure 1 journal November 2005
New Frontiers in Type III Secretion Biology: the Chlamydia Perspective journal October 2013
mBet3p is required for homotypic COPII vesicle tethering in mammalian cells journal July 2006
Insights into structural and regulatory roles of Sec16 in COPII vesicle formation at ER exit sites journal August 2012
TANGO1 and Mia2/cTAGE5 (TALI) cooperate to export bulky pre-chylomicrons/VLDLs from the endoplasmic reticulum journal May 2016
Integrating Chemical Mutagenesis and Whole-Genome Sequencing as a Platform for Forward and Reverse Genetic Analysis of Chlamydia journal May 2015
APEX Fingerprinting Reveals the Subcellular Localization of Proteins of Interest journal May 2016
Duration of Untreated, Uncomplicated Chlamydia trachomatis Genital Infection and Factors Associated with Chlamydia Resolution: A Review of Human Studies journal June 2010
Evolution and Conservation of Predicted Inclusion Membrane Proteins in Chlamydiae journal January 2012
Improving brightness and photostability of green and red fluorescent proteins for live cell imaging and FRET reporting journal February 2016
Expression and Localization of Predicted Inclusion Membrane Proteins in Chlamydia trachomatis journal September 2015
Small molecules intercept Notch signaling and the early secretory pathway journal September 2013
Activation of epidermal growth factor receptor is required for Chlamydia trachomatis development journal December 2014
Chlamydia trachomatis Co-opts GBF1 and CERT to Acquire Host Sphingomyelin for Distinct Roles during Intracellular Development journal September 2011
The Global Burden of Trachoma: A Review journal October 2009
The STRING database in 2017: quality-controlled protein–protein association networks, made broadly accessible journal October 2016
Emancipating Chlamydia: Advances in the Genetic Manipulation of a Recalcitrant Intracellular Pathogen journal March 2016
Three temporal classes of gene expression during the Chlamydia trachomatis developmental cycle journal August 2000
Fiji: an open-source platform for biological-image analysis journal June 2012
The Obligate Intracellular Pathogen Chlamydia trachomatis Targets Host Lipid Droplets journal August 2006
A Loss-of-Function Screen Reveals Ras- and Raf-Independent MEK-ERK Signaling During Chlamydia trachomatis Infection journal March 2010
Chlamydial Intracellular Survival Strategies journal May 2013
Chlamydia trachomatis growth and development requires the activity of host Long-chain Acyl-CoA Synthetases (ACSLs) journal March 2016
Chlamydiae Assemble a Pathogen Synapse to Hijack the Host Endoplasmic Reticulum journal September 2012
Host cell phospholipids are trafficked to and then modified by Chlamydia trachomatis. journal December 1997
Multidimensional Tracking of GPCR Signaling via Peroxidase-Catalyzed Proximity Labeling journal April 2017
Genome Sequence of an Obligate Intracellular Pathogen of Humans: Chlamydia trachomatis journal October 1998
Development of a Proximity Labeling System to Map the Chlamydia trachomatis Inclusion Membrane journal February 2017
Combined Statistical Analyses of Peptide Intensities and Peptide Occurrences Improves Identification of Significant Peptides from MS-Based Proteomics Data journal November 2010
Chlamydia trachomatis Inclusion Membrane Protein CT228 Recruits Elements of the Myosin Phosphatase Pathway to Regulate Release Mechanisms journal June 2013
Elucidation of roles for vitamin B 12 in regulation of folate, ubiquinone, and methionine metabolism journal January 2017
A secondary structure motif predictive of protein localization to the chlamydial inclusion membrane journal February 2000
Specific chlamydial inclusion membrane proteins associate with active Src family kinases in microdomains that interact with the host microtubule network: Chlamydial inclusion microdomains journal August 2010
Golgi-dependent transport of cholesterol to the Chlamydia trachomatis inclusion journal May 2003
ER retention is imposed by COPII protein sorting and attenuated by 4-phenylbutyrate journal June 2017
Chlamydia trachomatis interrupts an exocytic pathway to acquire endogenously synthesized sphingomyelin in transit from the Golgi apparatus to the plasma membrane. journal March 1996
Mammalian 14-3-3beta associates with the Chlamydia trachomatis inclusion membrane via its interaction with IncG journal March 2001
COPII and the regulation of protein sorting in mammals journal December 2011
Spatially resolved proteomic mapping in living cells with the engineered peroxidase APEX2 journal February 2016
Proteomic Mapping of the Human Mitochondrial Intermembrane Space in Live Cells via Ratiometric APEX Tagging journal July 2014
Regulation of the Sar1 GTPase Cycle Is Necessary for Large Cargo Secretion from the Endoplasmic Reticulum journal August 2017
InnateDB: systems biology of innate immunity and beyond—recent updates and continuing curation journal November 2012
Phospholipid Composition of Purified Chlamydia trachomatis Mimics That of the Eucaryotic Host Cell journal August 1998
A Class of Membrane Proteins Shaping the Tubular Endoplasmic Reticulum journal August 2007
Improved secretion of glycoproteins using an N-glycan-restricted passport sequence tag recognized by cargo receptor journal March 2020
Rhein, a novel Histone Deacetylase (HDAC) inhibitor with antifibrotic potency in human myocardial fibrosis journal March 2020
Improved quality control processing of peptide-centric LC-MS proteomics data text January 2011
The Chlamydia Protease CPAF Regulates Host and Bacterial Proteins to Maintain Pathogen Vacuole Integrity and Promote Virulence text January 2011
A Class of Dynamin-like GTPases Involved in the Generation of the Tubular ER Network journal August 2009
The STRING database in 2017: quality-controlled protein–protein association networks, made broadly accessible text January 2016
A Class of Dynamin-like GTPases Involved in the Generation of the Tubular ER Network journal August 2009
Identification and characterization of a Chlamydia trachomatis early operon encoding four novel inclusion membrane proteins journal August 1999
cTAGE: A Cutaneous T Cell Lymphoma Associated Antigen Family with Tumor-Specific Splicing journal July 2003
Genomic transcriptional profiling of the developmental cycle of Chlamydia trachomatis journal June 2003
Host HDL biogenesis machinery is recruited to the inclusion of Chlamydia trachomatis -infected cells and regulates chlamydial growth: Phospholipid acquisition by Chlamydia journal June 2012
A subcellular map of the human proteome journal May 2017
Transcriptional Profiling of Human Epithelial Cells Infected with Plasmid-Bearing and Plasmid-Deficient Chlamydia trachomatis journal February 2015
The Proteome of the Isolated Chlamydia trachomatis Containing Vacuole Reveals a Complex Trafficking Platform Enriched for Retromer Components journal June 2015
Autophagy-independent function of MAP-LC3 during intracellular propagation of Chlamydia trachomatis journal August 2011
Remodeling of ER ‐exit sites initiates a membrane supply pathway for autophagosome biogenesis journal July 2017
Proteins in the chlamydial inclusion membrane journal March 2002
A genetically encoded probe for EM journal December 2012
CADD, a Chlamydia Protein That Interacts with Death Receptors journal January 2002
Lipoprotein secretion: It takes two to TANGO journal May 2016
Expression of the Effector Protein IncD in Chlamydia trachomatis Mediates Recruitment of the Lipid Transfer Protein CERT and the Endoplasmic Reticulum-Resident Protein VAPB to the Inclusion Membrane journal March 2014
Global Stage-Specific Gene Regulation during the Developmental Cycle of Chlamydia trachomatis journal May 2003
Phosphatidylinositol 3-kinase and COPII generate LC3 lipidation vesicles from the ER-Golgi intermediate compartment journal November 2014

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