Poster Abstracts170 Development <strong>of</strong> ERCC RNA Spike-InControl MixesL. Qu, A. Lemire, K. Lea, D. Batten, S. Jian Gu,P. Whitley, K. BramlettLife technology, Carlsbad, CA, United StatesThe National Institute <strong>of</strong> Standards and Technology (NIST) hostedExternal RNA Control Consortium (ERCC) has been working since2003 to generate a common set <strong>of</strong> RNA controls that can be used ingene expression measurements. These controls have been designedto mimic natural eukaryotic mRNA sequences with the ability to beused across multiple measurement platforms. These controls open-upthe possibilities for technical evaluation <strong>of</strong> multiple gene expressionsystems including real-time quantitative PCR, one-color and two-colormicroarray systems, next generation sequencing platforms, as well asserve as an in-process quality control check for library amplificationprocesses. The long standing history <strong>of</strong> Ambion® as the RNACompany creates a great opportunity to formulate the ERCCs controlsinto useful mixes that can be spiked into RNA after isolation. Each mixcontains 92 <strong>of</strong> the ERCC controls in a mixture that spans over 6 logs <strong>of</strong>dynamic range. The 92 transcripts in each mix are further divided into4 sub-pools that can be utilized to evaluate fold-change measurements<strong>of</strong> gene expression between the two mixes. TaqMan® Gene Expressionassays targeting the 92 transcripts are utilized to monitor progressthrough the transcriptome library preparation steps required tocreate a next generation sequencing (NGS) library from RNA. Wedemonstrated the use <strong>of</strong> TaqMan® assays to inform a researcher<strong>of</strong> library quality prior to continuing with an expensive and timeconsumingnext generation sequencing experiment. These controlsare platform agnostic and provide informative data for multiple librarygeneration methods targeting various gene expression measurementplatforms from RNA. ERCC RNA spike-in control mixes from theNIST traceable ERCC plasmids has great potential in the hands <strong>of</strong> ourcustomers to open-up new capabilities in understanding variabilityin RNA preparation, RNA library preparation, determining detectionlimits <strong>of</strong> measurement systems, and informing downstream analysis. Assuch, we report here the first in a potential line <strong>of</strong> RNA control productsleveraging the certified plasmid sequences from NIST.171 Effects <strong>of</strong> Particle Porosity on theSeparation <strong>of</strong> Larger MoleculesR. Freeman, D. DiFeo, H. Jurgen Wirth, A. GooleySGE Analytical Science, Austin, TX, United StatesThe pore structure <strong>of</strong> a chromatographic stationary phase accountsfor the vast majority <strong>of</strong> the surface area responsible for the separation.The pore diameter influences the overall surface area and with it thecapacity <strong>of</strong> the column but also limits the size <strong>of</strong> the analyte the columncan or should be used for. In adsorption chromatography the limitingeffect <strong>of</strong> the pore diameter is further enhanced by adsorbed analytemolecules partially blocking the pore structure. In the analysis <strong>of</strong> largemolecules pore diffusion becomes a crucial parameter in the efficiency<strong>of</strong> the column. A number <strong>of</strong> models deal with hindered mass transfer inporous systems. Effects <strong>of</strong> particle porosity on the separation <strong>of</strong> largermolecules are discussed and examples for the separation <strong>of</strong> small,medium and large analytes on various pore size stationary phases aregiven. Pore size is shown to be an important parameter when analyzinglarger molecules. By selecting the right pore size for a task the capacityand the mass transfer trade-<strong>of</strong>f can be optimized to achieve the bestpossible separation. For tryptic digests a 200 Å stationary phase issuperior to a 300 Å due to its two-fold increase in surface area while1000 Å are required for the separation <strong>of</strong> proteins.172 Biological Application <strong>of</strong> ConstrainedPeptidesE. Murage, M. Castro, H. FazeliBiosynthesis, Inc., Lewisville, TX, United StatesPeptides are attractive therapeutic agents for many diseases. However,poor cell permeability, short half life in vivo due to rapid enzymedegradation has long been a major drawback in their clinical application.In order to overcome this, modification <strong>of</strong> peptides backbone hasbeen <strong>of</strong> most interest. In particular, synthetic cyclic peptides are beinginvestigated as potential drug candidates due to their improved cellpermeability, enzyme stability, high receptor affinity and selectivity. Forinstance, hydrocarbon stapled peptides has been shown to bind andinhibit the NOTCH1 transcription factor. NOTCH proteins have beenshown to play a pivotal role in cellular differentiation, proliferationand apoptosis. Mutations in NOTCH1 have been linked with diseaseslike T-cell acute lymphoblastic leukemia.1 Thus constrained peptideassemblies would provide a good opportunity to explore the proteinproteininteractions due to the increased binding affinity comparedto the linear counterparts. As a result <strong>of</strong> the attractive biologicalproperties <strong>of</strong>fered by these modified peptides there is a growingdemand for constrained peptides in the current drug discoveryresearch. To support the unmet need for custom made constrainedpeptides, Biosynthesis Inc. is now <strong>of</strong>fering stapled peptides and lactambridge constrained peptides. 1. Raymond E. M., Melanie C., Tina N. D.,Cristina Del Bianco, Jon C. A., Stephen C. B., Andrew L. K., D. Gary G.,Gregory L. V., James E. B., Nature 2009, 462, 182-188.173 The University <strong>of</strong> Texas at Austin— Protein and Metabolite AnalysisFacilityM. Gadush, H. Lo, F. Geigerman, M. Mercado,M. PersonUniversity <strong>of</strong> Texas at Austin, Austin, TX, UnitedStatesThe Protein and Metabolite Analysis Facility at the University <strong>of</strong> Texasat Austin is a joint effort <strong>of</strong> the College <strong>of</strong> Pharmacy, Center for Researchon Environmental Disease (CRED), and the Institute for Cellular andMolecular Biology (ICMB). Services and collaborative research are<strong>of</strong>fered for the detection, characterization and quantification <strong>of</strong>biomolecules. The Facility’s goals are to provide sensitive proteinidentification and modification analyses, to provide custom peptidesyntheses, to <strong>of</strong>fer services for the identification and quantification <strong>of</strong>metabolites, nutrients and xenobiotics, to implement novel analyticalmethods, to improve the sensitivity <strong>of</strong> existing analyses, to provideconsultation on the selection and implementation <strong>of</strong> analytical methods,to <strong>of</strong>fer training in the usage and applications <strong>of</strong> the instrumentation,and to provide technical expertise in support <strong>of</strong> individual researchgoals. The ICMB portion <strong>of</strong> the Core contains an ABI Procise 492 cLCprotein sequencer, a Protein Technologies Inc. Symphony peptidesynthesizer, two Bio-rad Du<strong>of</strong>lows and a GE Heathcare AKTA proteinpurification systems, two Beckman System Gold HPLC systems, aBerthold Technologies Mithras luminescence and fluorescence detector,an Invitrogen gel electrophoresis set-up, an Art Robbins Instruments80 • <strong>ABRF</strong> <strong>2011</strong> — Technologies to Enable Personalized Medicine
Phoenix crystallography robot and a LC-MALDI-TOF/TOF (an ABI 4700with a LC Packings Ultimate Nano-LC system with a Probot spottingrobot). In the College <strong>of</strong> Pharmacy, the Core has an Applied Biosystems4000 Q-trap LC MS/MS system with ESI, APCI and nanospray sourcescoupled with a Shimadzu LC-20AD HPLC system, ThermoFinnigan LCQion trap mass spectrometer with ESI, APCI and microspray interfacescombined with a Michrom Magic 2002 HPLC system, a ThermoFinniganTrace MS GC-quadropole with EI positive, negative CI and selected ionmonitoring (SIM), an ABI Voyager-DE Pro MALDI-TOF and a Bio-radBioplex 200 fluorescent microbead array system.174 Microscopy and Imaging Facility,Cornell UniversityR. Williams, C. Bayles, J. Dela Cruz, M. Riccio,R. Doran, W. ZipfelCornell University, Ithaca, NY, United StatesThe Microscopy and Imaging Facility <strong>of</strong> the Cornell University LifeSciences Core Laboratories Center (CLC) provides an array <strong>of</strong> sharedresearch resources and services relating to optical microscopy,fluorescence, and whole animal imaging. The mission <strong>of</strong> the facility isto provide cutting edge technologies and high quality services that willsignificantly contribute to life sciences research, training and educationprograms.175 Utilization <strong>of</strong> Flow Cytometry inPersonalized MedicineP. LopezNew York University, New York, NY, United StatesFlow cytometry is a multiparametric data-gathering tool with anenormous, well-established array <strong>of</strong> applications for intact cells,organelles, functionalized beads, lysed cell contents or supernatants.Multiparametric analysis using state-<strong>of</strong>-the-art cytometers has thepotential to yield a distribution <strong>of</strong> cellular phenotypes with highdimensionality (up to 20 parameters per cell simultaneously) specificto an individual disease state or system-wide perturbation. Purifiedpopulations <strong>of</strong> atypical and/or cells representative <strong>of</strong> the disease statecan be collected as the first step towards biomolecular characterization.Flow cytometers may be outfitted with multiwell-plate accessories toprovide single-cell capture <strong>of</strong> specified cells with correlation to eachcell’s individual phenotype (indexed sorting), or rapid sampling frommicrotiter plates (plug-flow). An exciting new cytometric innovationmay allow determining the full signature <strong>of</strong> biomarkers from individualcells . The massively multiparametric mass cytometer analyzer makesuse <strong>of</strong> the high sensitivity and resolution <strong>of</strong> mass spectroscopy torecord the elemental composition as well as metal-tagged biomarkerdistribution <strong>of</strong> individual cells at a rate <strong>of</strong> up to 1000 cells per second.176 Cell Imaging and Analysis Network(CIAN) - Multi-Platform Resourcesand Services<strong>of</strong> six scientific platforms: Cell Imaging (confocal and fluorescencemicroscopy; walk-up), Proteomics (2-D, DiGE and fluorescent proteinanalysis; walk-up), Automation and High throughput screening(Pinning robot and liquid handler; full service), Protein expression andantibody production (in collaboration with local animal facilities; fullservice), Genomics (real-time PCR; walk-up), and Data storage/analysis(cluster, server and workstations). Users get in-depth consultationfor proposed projects, and can obtain training in any <strong>of</strong> the walk-upaspects <strong>of</strong> the facility, or take advantage <strong>of</strong> the full-service platforms.CIAN is designed to facilitate training, enhance interactions, as well asshare and maintain resources and expertise.177 Danforth Center: Proteomics & MassSpectrometry Core FacilityL. Hicks, S. Alvarez, B. Zhang, Z. Liu, H. Wang,J. FazlicDanforth Center, St. Louis, MO, United StatesThe Proteomics & Mass Spectrometry Facility at the Donald DanforthPlant Science Center (http://www.danforthcenter.org/pmsf/) isequipped with state-<strong>of</strong>-the-art technologies for the detailed study <strong>of</strong>a wide range <strong>of</strong> biomolecules. The facility provides both full- and selfservicecapabilities to both internal and external clients at competitiverates. The facility <strong>of</strong>fers fast, high quality specialized analytical servicesincluding: protein extractions, liquid chromatographic separations; highresolution 1D/2D gel electrophoresis; gel image analysis and proteinexpression analysis; high-throughput protein spot excision; in-solutionand in-gel protein digestion; high-throughput protein identification;accurate protein molecular weight analysis; protein covalent/noncovalentcomplex analysis; biomolecule interactions (surface plasmonresonance); small molecule separation/structure determination; andprotein post-translational modification analysis. Major instrumentationincludes: LTQ Orbitrap Velos (Thermo Scientific), QSTAR XL Q-TOF,two 4000QTRAPs, two 6520 Q-TOFs (Agilent), 5975C GC-MS(Agilent), TriVersa NanoMate (Advion), Chip Cube (Agilent), two 1200HPLCs (Agilent), 3 nan<strong>of</strong>low HPLCs (LC Packings/Eksigent), SystemGold HPLC (Beckman Coulter), two Shimadzu HPLCs (Shimadzu),UPLC (Waters), Biacore2000,3100 OFFGEL fractionator (Agilent), 1Dand high resolution2D gel electrophoresis systems (BioRad/AmershamBiosciences), Typhoon 9410 (Amersham Biosciences), GelPix (Genetix),and MultiProbe II (Perkin-Elmer). Protein intact mass, identification andcharacterization are a few <strong>of</strong> the many applications that the facilityperforms. For proteomics applications,two Q-TOFs andthe LTQOrbitrap Velos instruments are well-suited for analyzing both smallpeptides and large proteins. The LTQ Orbitrap Velos can be set upwith the TriVersa to automate direct infusion <strong>of</strong> samples to performexact mass measurements for molecular formula determination orfacilitate targeted analysis <strong>of</strong> modifications. The LTQ Orbitrap Velosand the 6520 Q-TOF are also used for online LC-based quantitativeproteomics (iTRAQ and label-free). The 4000 QTRAP systems serveas powerful instruments for targetedmetabolite analyses (e.g. planthormones, pABA, etc.), and the GCMS and one LC-QTOF are used formetabolomics pr<strong>of</strong>iling initiatives.Poster AbstractsE. Küster-Schöck, J. Lacoste, G. Lesage,S. Bunnell, H. HanMcGill University, Montreal, QC, CanadaThe Cell Imaging and Analysis Network (CIAN) provides servicesand tools to researchers in the field <strong>of</strong> cell biology from within oroutside Montreal’s McGill University community. CIAN is composed<strong>ABRF</strong> <strong>2011</strong> — Technologies to Enable Personalized Medicine • 81
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